DCF
type: MusicGroup
description: DCF may refer to: Medical Data clarification form in clinical trials Dénomination Commune Française, a formal French generic name for a drug Organizations Child protective services, called D
popularity: 16
followers: 1149
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x82ab1a345a45e6abbb2b4c2cbf95fa5491231155d111a02dde98db76e133effe
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953746
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953746
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a4ff90f9-769b-486e-ad9e-e9294550f67f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a4ff90f9-769b-486e-ad9e-e9294550f67f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a4ff90f9-769b-486e-ad9e-e9294550f67f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T05:25:34Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ab1a345a45e6abbb2b4c2cbf95fa5491231155d111a02dde98db76e133effe. Chain 2 (Bitcoin): anchored in block 953746 (2026-06-15T05:25:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4ff90f9-769b-486e-ad9e-e9294550f67f.json and https://artists.proofprofile.net/proofs/artist/a4ff90f9-769b-486e-ad9e-e9294550f67f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T05:25:34Z
album: John Cusack (Radio Edit)
  type: MusicAlbum
  date published: 2015-03-23
album: John Cusack (Radio Edit)
  type: MusicAlbum
  date published: 2015-03-23
album: Pop Songs
  type: MusicAlbum
  date published: 2015-03-30
album: Pop Songs
  type: MusicAlbum
  date published: 2015-03-30
album: Sky Ferriera
  type: MusicAlbum
  date published: 2017-11-24
album: Sky Ferreira
  type: MusicAlbum
  date published: 2017-11-24
album: Sky Ferriera
  type: MusicAlbum
  date published: 2017-11-24
album: Bring A Friend
  type: MusicAlbum
  date published: 2018-01-26
album: Bring A Friend
  type: MusicAlbum
  date published: 2018-01-26
album: Bring A Friend
  type: MusicAlbum
  date published: 2018-01-26
album: 3 Steps (To Leave Your Mans)
  type: MusicAlbum
  date published: 2018-06-08
album: 3 Steps (To Leave Your Mans)
  type: MusicAlbum
  date published: 2018-06-08
album: Mission 2 Mars
  type: MusicAlbum
  date published: 2018-10-26
album: Mission 2 Mars
  type: MusicAlbum
  date published: 2018-10-26
album: I'm Fine
  type: MusicAlbum
  date published: 2019-02-08
album: I'm Fine
  type: MusicAlbum
  date published: 2019-02-08
album: Fell For You
  type: MusicAlbum
  date published: 2019-03-08
album: Fell For You
  type: MusicAlbum
  date published: 2019-03-08
album: Fell For You
  type: MusicAlbum
  date published: 2019-03-08
album: Diary (feat. SmrtDeath)
  type: MusicAlbum
  date published: 2019-04-26
album: Diary
  type: MusicAlbum
  date published: 2019-04-26
album: Diary
  type: MusicAlbum
  date published: 2019-04-26
album: One Time
  type: MusicAlbum
  date published: 2020-02-14
album: One Time
  type: MusicAlbum
  date published: 2020-02-14
album: Lost Present
  type: MusicAlbum
  date published: 2025-04-25
track: Stranger's Arms - Remix
  type: MusicRecording
  duration: PT3M9S
  duration ms: 189081
  explicit: false
  by artist: LØLØ
  by artist: DCF
  in album: Stranger's Arms (Remix)
    type: MusicAlbum
    date published: 2019-08-16
  genre: alt-z
  genre: canadian-pop
  isrc code: FR59R1985917
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-20T01:13:30+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6194737033b7cb3d24d4ccce0282f821f076c08f97c01447ff13dae96c535719
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956302
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59R1985917
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6194737033b7cb3d24d4ccce0282f821f076c08f97c01447ff13dae96c535719. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59R1985917.
    date published: 2026-07-02T03:30:09Z
  audio: Stranger's Arms - Remix
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 124.83
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.676
    additional property: Energy
      type: PropertyValue
      value: 0.661
    additional property: Speechiness
      type: PropertyValue
      value: 0.043
    additional property: Acousticness
      type: PropertyValue
      value: 0.009
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.083
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.405
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.73
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Stranger's Arms
  type: MusicRecording
  duration: PT3M14S
  duration ms: 194464
  explicit: false
  by artist: LØLØ
  by artist: DCF
  in album: Sweater Collection
  genre: alt-z
  genre: canadian-pop
  isrc code: CACB11900019
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Stranger's Arms

LØLØ
type: MusicGroup

DCF
type: MusicGroup

Sweater Collection
type: MusicAlbum
date published: 2019-05-03

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-07T03:46:08+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x62819bf64887264e9fed1d03edeea5e2c9a8810c6053ec17cceb7df41cc590c8

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 953515

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/953515

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CACB11900019

OTSTimestamp
type: PropertyValue
value: 2026-06-13T12:53:06Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62819bf64887264e9fed1d03edeea5e2c9a8810c6053ec17cceb7df41cc590c8. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CACB11900019.
date published: 2026-06-13T12:53:06Z

Stranger's Arms
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 199.39
additional property: Musical Key
  type: PropertyValue
  value: 0
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.591
additional property: Energy
  type: PropertyValue
  value: 0.499
additional property: Speechiness
  type: PropertyValue
  value: 0.143
additional property: Acousticness
  type: PropertyValue
  value: 0.043
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.221
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.551
additional property: Loudness (dB)
  type: PropertyValue
  value: -13.175
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Major