Musical audio download delivery

1. Scope and Applicability

This PCR covers delivery of electronic files containing musical audio recordings that can be downloaded and stored on a local device. It covers single tracks and complete albums, lossy and lossless formats, new and existing recordings, owned and outsourced delivery infrastructure. Each dataset binds one defined package and release version. The substantive method need is to separate one-time file preparation from shared storage and repeated transmissions, and verify a completed local copy without multiplying original creation burdens. Sources: un-cpc3-music; bandcamp-formats.

Exclude live or streamed audio without a delivered local file, non-musical audio and audiobooks, video downloads, broadcast programmes, musical composition/recording originals as the reference output, physical recorded media, software originals, databases and rights/licensing-only transactions. A download entitlement alone is not completed delivery. The core foreground begins with an approved source recording and ends with file acceptance on the receiving device. Original production and hardware manufacture are separately linked upstream layers; subsequent listening and retention are downstream use. This is a delivery inventory, not an asserted complete cradle-to-gate music lifecycle.

2. Product Category Identity

Field	Value
canonical_pcr_id	pcr.business-and-production-services.digital-content.musical-audio-download-delivery
classification_refs	CPC 3.0: 84321
covered_products	Complete locally stored musical audio file packages; declared track or album configuration
excluded_products	Streams; broadcasts; non-musical audio; video; physical media; originals and rights-only sales
representative_product	One accepted download of an identified music track; album configurations use the same complete-package method
production_route	Approved master → file preparation and acceptance → origin/cache hosting → transfer → local file acceptance
market_state	Delivered musical audio file package, version and use conditions declared

3. Reference Flow

Field	Value
What	Deliver a complete usable local copy of the declared musical audio recording package
How much	1 item; one successful complete package delivery
How well	Exact release/track list, declared encoding and audio parameters; byte integrity and decode/playability accepted under documented checks
How long or cycle	One completed download through local file acceptance; actual preparation and hosting intervals allocated to the observed delivery cohort; no listening lifetime implied
reference_flow_link	accepted_download

Field	Value
Reference amount	1
Reference product flow	Complete musical audio download
Reference flow property	Number of items 01846770-4cfe-4a25-8ad9-919d8d378345
Reference unit group	Units of items 5beb6eed-33a9-47b8-9ede-1dfe8f679159
Reference unit	item
Required qualifiers	recording/release identifier; track sequence and package configuration; audio duration; codec/container, bitrate mode or sample rate/bit depth as applicable; channel configuration; file manifest, hashes and actual bytes; bundled artwork/metadata; reuse/use conditions; acceptance endpoint and method; cohort period and accepted counts; hosting/cache/backup interval and replicas; network segments and receiver type; provider scope; electricity region/voltage; original/hardware layer linkage

Declare every qualifier in dataset metadata or equivalent records. item is a display alias for the public unit Item(s), with factor 1, and counts complete delivery packages. It is neither a kg quantity nor a copyright, user or sales unit. One album and one track are different configurations; equal item counts do not establish functional equivalence. Sources: un-cpc3-music; bandcamp-formats.

4. Measurement and Unit Rules

rule_id	Applies to	Required property	Required unit	Rule
reference_count	accepted_download	Number of items	item	1 item = one complete accepted download package; cp_acceptance deduplicates retries and log events. Bytes, audio minutes, purchases and rights do not replace delivered-package count.
energy_conversion	prepare_electricity; hosting_electricity; network_electricity; receiving_electricity	Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66	MJ	Preserve the public electrical-energy property; 1 kWh = 3.6 MJ exactly. Distinguish power in W from energy in kWh; record meter integration interval. Source: nist-si-conversion.
scope_units	all inventory rows	Declared exchange property	Declared row unit	Count source masters, provider jobs and hardware only with their actual definitions and attributable shares. Storage bytes and transmission bytes stay activity records; no unproved bytes-to-energy or rights-to-mass conversion is allowed.

5. System Boundary

Boundary Abstraction

Field	Value
declared_starting_condition	Approved musical recording master with known version, provenance and use conditions
starting_condition_role	Foreground delivery interface; original creation remains a separately identified upstream layer
product_classification_scope	Downloadable locally stored musical recordings; classification is descriptive, not an allocation boundary
recursive_input_rule	Record acquired already prepared musical files once at the supplier interface; do not repeat their upstream encoding or original creation
upstream_dataset_requirement	Obtain compatible recording-production, hardware and provider inventories for linked layers; disclose unavailable layers
disclosure	Name endpoints, responsibility, original and hardware linkage, storage period, provider overlap, receiver coverage and downstream exclusions

rule_id	applies_to	Rule	source_ids
boundary_delivery	delivery_system	Include actual file ingestion, format preparation or verification, release QA, origin/cache storage and replicas, transfer attempts and local receipt through integrity acceptance. Splitting sites/providers does not exclude an essential segment; missing data require explicit incomplete coverage.	un-cpc3-music; bandcamp-formats
boundary_layers	recording_master; server_hardware; router_hardware; receiving_computer	Core foreground starts after source recording approval. Report recording/performance/composition production separately and link only an evidenced attributable upstream inventory. Hardware production and end-of-life belong in identified asset/provider layers. Do not call foreground electricity alone complete product LCA.	gsf-sci110
boundary_actual	all inventory rows	Instantiate each actual fuel, chemical, cooling water supply, wastewater, solid waste, material, additional device and substantiated elementary emission as a separate atomic row with measured amount and property. There is no mandatory on-site CO2, NOx or water emission for an electrically operated download. Upstream electricity emissions are not direct emissions. Absent exchanges need route evidence; unresolved identities are not cut-offs.	gsf-sci110
boundary_use	post_acceptance	Exclude subsequent offline listening, storage retention after the declared download acceptance, user travel, unrelated platform browsing/streaming, advertising and rights-only transactions from core delivery. A full music-use comparison must separately add matched playback, retention, equipment and original-production scenarios.	un-cpc3-music

6. Process Inventory Structure

Process Map

process_id	process_name	inclusion	inclusion_condition	role	quantitative_reference
preparation	Source ingestion, file preparation and release QA	required	All downloads; transcoding only if actual format conversion occurs	delivery preparation	one complete accepted download
hosting	Origin and cache hosting	required	Actual hosting interval and replicas; owned or provider route	storage	one complete accepted download
delivery	Network transfer and local acceptance	required	All actual transfer segments and receiving endpoint	delivery	one complete accepted download

The cards define distinct exchanges, not universal quantities or a complete site bill of materials. Actual owned operations use metered electricity/device rows; outsourced operations use verified supplier-delivery rows with complete upstream scope. Mixed routes partition disjoint segments. None of these rows authorizes omitting unmatched geography or a receiving device.

Process: File preparation (preparation)

Inputs

Product flows

Alternating current (prepare_electricity)

Electricity for ingestion, encoding when required, metadata assembly and release quality checks. Include failed attempts and the attributable shared computing load.

This selected UUID is applicable only to actual CN grid-average user supply below 1 kV. For other electricity regions, voltages or supply routes retain the exchange and verify a matching identity separately; the category remains global. Measure each stage independently and avoid duplicating supplier-inclusive electricity.

• Selected flow: Alternating current 50657322-939c-4829-a87b-47c093bfa6a7
• Flow property / unit: Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66 / MJ
• Amount rule: Measured attributable amount per declared reference flow; cp_energy.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_energy
• Sources: gsf-sci110

Musical recording digital master (recording_master)

Conditional upstream-linked exchange: one identified approved musical recording master, with the evidenced share of its creation burden assigned to this download cohort. A reusable master is not physically recreated for every copy. Retain separate recording-production inventory and beneficiary ledger; a licensing price does not measure its environmental burden. If this layer is unavailable disclose an unlinked upstream layer, never zero creation burden.

• Selected flow: Musical recording digital master
• Flow property / unit: Number of items 01846770-4cfe-4a25-8ad9-919d8d378345 / item
• Amount rule: Measured attributable amount per declared reference flow; cp_master.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_master
• Sources: gsf-sci110

Musical audio transcoding job (transcode_job)

Conditional: an external provider actually delivers one specified transcoding job for this musical release. Define source/target format, file manifest, job completion and included energy/device scope. Allocate one completed batch job across its actual beneficiaries; do not add owned electricity for an already provider-covered operation. No re-encoding is required for a ready compatible file.

• Selected flow: Musical audio transcoding job
• Flow property / unit: Number of items 01846770-4cfe-4a25-8ad9-919d8d378345 / item
• Amount rule: Measured attributable amount per declared reference flow; cp_provider.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_provider
• Sources: gsf-sci110

Computing server (server_hardware)

Conditional: attributable production and end-of-life share of one specified owned computing server used in preparation or hosting. Count the actual device configuration and assign its documented reserved-time/resource fraction over evidenced installed life, once across disjoint stages. Do not substitute a generic software service or count one whole server per download.

• Selected flow: Computing server
• Flow property / unit: Number of items 01846770-4cfe-4a25-8ad9-919d8d378345 / item
• Amount rule: Measured attributable amount per declared reference flow; cp_device.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_device
• Sources: gsf-sci110

Waste flows

Elementary flows

Outputs

Product flows

Waste flows

Elementary flows

Process: Hosting (hosting)

Inputs

Product flows

Alternating current (hosting_electricity)

Electricity for the actual origin and cache storage intervals, retrieval and reserved capacity allocated to this release cohort. Include measured cooling and idle scope when attributable, with separate backup/redundancy records. Storage byte-time is an activity driver requiring meter reconciliation; it is not electrical energy.

This selected UUID is applicable only to actual CN grid-average user supply below 1 kV. For other electricity regions, voltages or supply routes retain the exchange and verify a matching identity separately; the category remains global. Measure each stage independently and avoid duplicating supplier-inclusive electricity.

• Selected flow: Alternating current 50657322-939c-4829-a87b-47c093bfa6a7
• Flow property / unit: Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66 / MJ
• Amount rule: Measured attributable amount per declared reference flow; cp_energy.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_energy
• Sources: gsf-sci110

Musical audio file hosting reservation (hosting_reservation)

Conditional outsourced alternative: one supplier-defined hosting reservation for the identified file version, capacity, interval and replica configuration. Obtain its underlying storage activity and energy/device inventory, then attribute the covered portion per delivery. A monetary hosting invoice alone is insufficient. Exclude the same provider-covered burden from owned rows.

• Selected flow: Musical audio file hosting reservation
• Flow property / unit: Number of items 01846770-4cfe-4a25-8ad9-919d8d378345 / item
• Amount rule: Measured attributable amount per declared reference flow; cp_provider.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_provider
• Sources: gsf-sci110

Waste flows

Elementary flows

Outputs

Product flows

Waste flows

Elementary flows

Process: Download and acceptance (delivery)

Inputs

Product flows

Alternating current (network_electricity)

Electricity for measured foreground download transport equipment and access network within the declared responsibility boundary. Reconcile session traffic, retries and shared reserved load to the same-period meter or supplier inventory. Do not multiply GB by an invented kWh/GB coefficient; remote provider-covered transport uses transmission_session instead.

This selected UUID is applicable only to actual CN grid-average user supply below 1 kV. For other electricity regions, voltages or supply routes retain the exchange and verify a matching identity separately; the category remains global. Measure each stage independently and avoid duplicating supplier-inclusive electricity.

• Selected flow: Alternating current 50657322-939c-4829-a87b-47c093bfa6a7
• Flow property / unit: Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66 / MJ
• Amount rule: Measured attributable amount per declared reference flow; cp_energy.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_energy
• Sources: gsf-sci110

IP packet router (router_hardware)

Conditional: one specified owned router participates in the transfer boundary. Attribute its device production and end-of-life share using documented capacity reservation, time and installed-life evidence. Actual switches, optical terminals or storage drives are distinct devices requiring their own rows if present; this router is not their proxy.

• Selected flow: IP packet router
• Flow property / unit: Number of items 01846770-4cfe-4a25-8ad9-919d8d378345 / item
• Amount rule: Measured attributable amount per declared reference flow; cp_device.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_device
• Sources: gsf-sci110

Musical audio download transmission session (transmission_session)

Conditional: an external network provider delivers the specified end-to-end session segment. Bind endpoints, transferred file checksum, useful and retransmitted bytes, connection technology, time and included equipment/energy layers. One successful delivered package can require multiple attempts; provider traffic counts do not define the final accepted output.

• Selected flow: Musical audio download transmission session
• Flow property / unit: Number of items 01846770-4cfe-4a25-8ad9-919d8d378345 / item
• Amount rule: Measured attributable amount per declared reference flow; cp_provider.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_provider
• Sources: gsf-sci110

Alternating current (receiving_electricity)

Electricity attributable to receiving, writing, decompressing when present and checking the delivered files on the specified local device until acceptance. Use controlled measured sessions or valid device telemetry and disclose sampling. Subsequent offline playback, retention and repeat listening are separate use scenarios.

This selected UUID is applicable only to actual CN grid-average user supply below 1 kV. For other electricity regions, voltages or supply routes retain the exchange and verify a matching identity separately; the category remains global. Measure each stage independently and avoid duplicating supplier-inclusive electricity.

• Selected flow: Alternating current 50657322-939c-4829-a87b-47c093bfa6a7
• Flow property / unit: Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66 / MJ
• Amount rule: Measured attributable amount per declared reference flow; cp_energy.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_energy
• Sources: gsf-sci110

Receiving computer (receiving_computer)

Conditional computer-receiver route: attributable share of one actual receiving computer with declared configuration and measured session use. Other receiving devices remain covered but require their own atomic device identity and evidence; this computer is not a smartphone proxy. Document installed life and reserved resources, without invented device life or mass.

• Selected flow: Receiving computer
• Flow property / unit: Number of items 01846770-4cfe-4a25-8ad9-919d8d378345 / item
• Amount rule: Measured attributable amount per declared reference flow; cp_device.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_device
• Sources: gsf-sci110

Waste flows

Elementary flows

Outputs

Product flows

Complete musical audio download (accepted_download)

One accepted delivered file package of the declared musical recording version: one track or one declared complete album, with ordered track list, encoding and integrity checks. Count only a completed local delivery, not a sale, click, stream, partial transfer or duplicate log event. Failed work remains in the input ledger.

• Selected flow: Complete musical audio download
• Flow property / unit: Number of items 01846770-4cfe-4a25-8ad9-919d8d378345 / item
• Amount rule: 1 item
• Value mode: Fixed value (fixed_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_acceptance
• Sources: un-cpc3-music; bandcamp-formats

Waste flows

Elementary flows

7. Allocation and Co-product Handling

rule_id	applies_to	Rule	source_ids
allocation_subdivide	all inventory rows	Separate stages, version cohorts and owned/provider segments before allocation. Use actual workload telemetry and disjoint meter scopes; reconcile the sum of attributed shares and residuals to observed totals. Revenue, licensing value and user numbers are not physical shares.	gsf-sci110
allocation_storage_network	hosting_electricity; network_electricity	Storage capacity-time and transmitted bytes may inform measured causal attribution only with actual reserved load, technology and meter/provider reconciliation. Report idle capacity, replicas, retransmissions and receiver scope. No universal energy-per-GB factor or arbitrary cooling multiplier is prescribed.	gsf-sci110
allocation_device	server_hardware; router_hardware; receiving_computer	For each specified device use its actual documented installed-life, reserved-time and resource-capacity share. Reconcile all beneficiaries and do not double count supplier-covered hardware. Distinct devices and noncomputing materials require their own records; no default life or mass is given.	gsf-sci110
allocation_original	recording_master; transcode_job	Keep original recording creation and reusable encoding work separate from incremental downloads. Use a conserved finite beneficiary ledger for the same master/version across download, stream and physical-release uses. Prefer measured subdivision; closed-cohort allocation must disclose its observation period, excluded beneficiaries and sensitivity. Never divide the full master burden by an invented future sale count or count it once per download.	un-cpc3-music
allocation_attempts	accepted_download	Include unsuccessful encoding/transfer effort attributable to the studied delivery cohort in the inputs; normalize to complete accepted local deliveries only. Separate repeated successful downloads as separate delivered copies within the same version cohort, while duplicate log entries never inflate output.	un-cpc3-music

8. Foreground Data Collection, Calculation, and Quality Rules

Data Collection Protocols

protocol_id	process_id	flow_role	record_type	raw_fields	collection_method	unit	frequency	temporal_coverage	site_scope	aggregation_rule	quality_evidence
cp_acceptance	delivery	complete output	acceptance_record	release ID; ordered files/tracks; hashes; codec and audio parameters; bytes; duration; endpoint; session IDs; attempts; complete accepted count; rights/use conditions	Reconcile server delivery events with local file manifest/integrity and decode acceptance or documented sampled receiver evidence; deduplicate event IDs and distinguish partial transfers	item	Each delivered package	Declared complete cohort interval	Origin, network and actual receiving endpoints	per declared reference flow	Version manifest; test results; logs; sampling and failures
cp_energy	preparation; hosting; delivery	stage electricity	meter_record	meter; start/end; stage/job; kWh; region/voltage; shared reservation; cooling/idle scope; session/storage/traffic logs; allocation shares; provider overlap	Use calibrated meters or verified telemetry integrated over actual disjoint stage intervals; reconcile facility totals and cohort workloads including retries; test receiving-device sessions separately	kWh	Each run and measured interval	Preparation plus actual storage and transfer interval	All measured owned segments and receiver sample	per declared reference flow	Calibration; raw telemetry; period reconciliation; sampling uncertainty
cp_master	preparation	upstream master share	source_record	master ID/version; approval; files; provenance/use conditions; creation inventory; benefiting release/use cohorts; allocation shares; cutoff	Inspect approved master and original production inventory; document actual beneficiary subdivision and conserved upstream shares; record unresolved original layer separately	item	Each source/version ledger update	Actual creation and beneficiary reporting horizon	Recording producer and publisher	per declared reference flow	Source manifest; upstream records; allocation/sensitivity ledger
cp_provider	preparation; hosting; delivery	specific provider delivery	supplier_record	supplier; scoped job/reservation/session ID; version; interval; capacity/bytes; defined item unit; accepted completion; energy/hardware inventory; beneficiary share	Obtain supplier activity and matched inventory with explicit endpoints and included layers; reconcile billed jobs/reservations/sessions to acceptance and partition owned overlap	item	Each provider delivery and period	Matched preparation/storage/transfer cohort	Actual providers and segments	per declared reference flow	Contract scope; inventory; raw activity; overlap reconciliation
cp_device	preparation; delivery	specific hardware share	asset_record	device ID/model/configuration; device count; production/end-of-life inventory; installed-life evidence; reserved time and resources; total capacity; stage beneficiaries	Reconcile actual asset register and supplier device inventory with workload reservation logs; substantiate life and partition device shares across all beneficiaries	item	Each configuration and reservation period	Actual installed life and studied reservation interval	Owned preparation/hosting, network and receiving devices	per declared reference flow	Asset records; device inventories; life evidence; workload shares

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
calculate_energy	prepare_electricity; hosting_electricity; network_electricity; receiving_electricity	Convert attributable collected kWh per declared reference flow to MJ by multiplication by 3.6. Preserve the measured physical attribution and disjoint provider scopes.	cp_energy	MJ per declared reference flow	nist-si-conversion
calculate_cohort	all inventory rows	Reconcile each measured attributable cohort exchange with the complete accepted-package count in the same release configuration and interval, then divide that attributed amount by the count. Keep failed work in the numerator. Retain pre-normalization totals and the positive denominator.	cp_acceptance; cp_energy; cp_provider; cp_master; cp_device	Exchange per declared reference flow	un-cpc3-music; gsf-sci110
calculate_device	server_hardware; router_hardware; receiving_computer	Derive the attributable device fraction from the recorded reserved-time share of evidenced installed life and reserved-resource share of total capacity; apply it to the actual specified device inventory and reconcile across beneficiaries before cohort normalization. No default life or capacity is assigned.	cp_device; cp_acceptance	Attributable device item share per declared reference flow	gsf-sci110

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
quality_identity	accepted_download	Bind recording version, actual bytes, duration, encoding, track sequence, completeness and lawful/use-condition provenance; approval here is producer acceptance, not scientific or legal certification.	cp_acceptance; cp_master
quality_representative	all inventory rows	Declare geography, reporting period, format, network and receiving-device distributions; weighted samples need actual cohort weights. Do not extrapolate one CN meter to a global network.	cp_energy; cp_provider; cp_acceptance
quality_complete	all inventory rows	Report unmeasured receivers/providers, unavailable original/device layers, capacity attribution uncertainty and all retry/idle/backup gaps. A missing upstream or transfer layer is incomplete coverage, not a zero exchange.	cp_energy; cp_device; cp_provider; cp_master
quality_uncertainty	allocation_original; allocation_device	Retain sensitivity to recorded storage horizon, original beneficiaries, device life, receiver sampling and shared-resource attribution; no default production coefficient is provided.	cp_master; cp_device; cp_energy

9. Validation Rules

rule_id	applies_to	Rule	source_ids
validate_reference	accepted_download	Check 1 item complete accepted package against cp_acceptance, exact product name and all required qualifiers. Reject clicks, rights, revenue, streams, partial files or duplicate events as output.	un-cpc3-music; bandcamp-formats
validate_units	all inventory rows	Check count/property/unit compatibility, exact kWh-to-MJ conversion, source-to-unit-group linkage and per-declared-reference-flow denominator. Do not replace a public primary property to force a UUID match; reject unsupported bytes/energy or copyright/mass conversions.	nist-si-conversion
validate_overlap	delivery_system	Reconcile disjoint meters/provider layers, device fractions, original beneficiary shares, storage intervals and retries. Verified CN electricity UUIDs require real region/voltage match; all other regions remain in scope and need separately matched identities.	gsf-sci110
validate_coverage	dataset	Check every actual production and delivery stage, added atomic exchanges and unresolved layer disclosure. Require independent applicability and scientific review before approval; structural checks do not certify impact, legal use, audio fidelity or complete lifecycle coverage.	un-cpc3-music; gsf-sci110

10. Published Dataset Profile

Field	Value
dataset_role	Foreground musical-download delivery inventory, with separately identified upstream original/hardware/provider layers
downstream_use	secondary_dataset; background_dataset
allowed_use	After evidence completion, one matched musical-download input to a declared music-use model with the same package quality and scope
excluded_use	Universal impact per song, byte, user or license; full music lifecycle from delivery-only data; streaming/broadcast proxies; unequal album/track comparisons
required_metadata	All reference qualifiers; original and version lineage; cohort totals; meter/provider endpoints; hardware fractions; geography/voltage; storage/retry scope; unit conversion; allocations and added exchanges
required_quality_disclosure	Unresolved identities and scientific review; original/hardware/provider/receiver gaps; sampling, allocation and temporal uncertainty; scope limitations
update_trigger	Changed recording/file version, encoding, package size, quality, supplier, network/device route, geography, storage horizon, acceptance or allocation evidence

11. Data Sources

Source id	Type	Reference	Used for
un-cpc3-music	official_guidance	UNSD, CPC Version 3.0, Code 84321, Explanatory note: https://unstats.un.org/unsd/classifications/Econ/Structure/Detail/EN/2100/84321	Current official file/local-storage boundary; no LCA coefficients
bandcamp-formats	handbook	Bandcamp Help Center, Which audio format should I download?, 12 June 2026: https://get.bandcamp.help/en/articles/15263285-which-audio-format-should-i-download	Current first-party lossy/lossless format and metadata example; no required platform, fidelity threshold or file-size default
gsf-sci110	standard	Green Software Foundation, Software Carbon Intensity Specification 1.1.0; Energy, Embodied emissions, Software boundary and Quantification method: https://sci.greensoftware.foundation/	Computing scope and device attribution principles adapted with actual foreground evidence; not a claim of complete SCI or music LCA conformance
nist-si-conversion	official_guidance	NIST SP 811 (2008), Appendix B.8 K, kilowatt hour: https://www.nist.gov/pml/special-publication-811/nist-guide-si-appendix-b-conversion-factors/nist-guide-si-appendix-b8	Exact 1 kWh = 3.6 MJ only; historical table not used for pre-2019 SI base definitions or production intensities