Br
type: MusicGroup
description: BR, Br or br may refer to: Arts and entertainment Bad Religion, a Californian punk rock band Battle Royale (novel), a Japanese novel completed in 1999 written by Koushun Takami Battle Royale (fil
popularity: 16
followers: 1998
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa88aa470cb5ad555b9a8cff424d0344ae0fde6cb989e24edc4a295de640da9af
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953733
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953733
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/961e630c-e104-4448-8801-11ede43c0a74.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/961e630c-e104-4448-8801-11ede43c0a74.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/961e630c-e104-4448-8801-11ede43c0a74
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T03:12:39Z
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 0xa88aa470cb5ad555b9a8cff424d0344ae0fde6cb989e24edc4a295de640da9af. Chain 2 (Bitcoin): anchored in block 953733 (2026-06-15T03:12:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/961e630c-e104-4448-8801-11ede43c0a74.json and https://artists.proofprofile.net/proofs/artist/961e630c-e104-4448-8801-11ede43c0a74.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T03:12:39Z
album: Block Rider Project
  type: MusicAlbum
  date published: 2011-10-31
album: I.L.Y. (I Love You) [feat. Soulja Boy]
  type: MusicAlbum
  date published: 2012-09-09
album: Transition (En attendant 4real)
  type: MusicAlbum
  date published: 2013-06-24
album: EP - Estreitos e Complicados. A Extremidade Pico
  type: MusicAlbum
  date published: 2016-12-14
album: Binaire
  type: MusicAlbum
  date published: 2018-09-01
album: Oscorp
  type: MusicAlbum
  date published: 2019-02-12
album: Bengala
  type: MusicAlbum
  date published: 2019-04-11
album: Projects
  type: MusicAlbum
  date published: 2019-12-12
album: Drop Top
  type: MusicAlbum
  date published: 2019-12-14
album: Projects
  type: MusicAlbum
  date published: 2020-01-03
album: Shine
  type: MusicAlbum
  date published: 2020-01-04
album: Flyer Than A Jet
  type: MusicAlbum
  date published: 2020-01-09
album: Shine
  type: MusicAlbum
  date published: 2020-01-10
album: 1st Place
  type: MusicAlbum
  date published: 2020-01-10
album: Bop Copy
  type: MusicAlbum
  date published: 2020-01-11
album: Better Days
  type: MusicAlbum
  date published: 2020-01-28
album: Poverty
  type: MusicAlbum
  date published: 2020-02-17
album: Trenches
  type: MusicAlbum
  date published: 2020-03-04
album: Times Right
  type: MusicAlbum
  date published: 2020-03-04
album: 100 Bandz
  type: MusicAlbum
  date published: 2020-03-16
album: Head Up
  type: MusicAlbum
  date published: 2020-03-16
album: Families
  type: MusicAlbum
  date published: 2020-04-09
album: Families
  type: MusicAlbum
  date published: 2020-04-15
album: Partners N Crime
  type: MusicAlbum
  date published: 2020-04-15
album: J.Z
  type: MusicAlbum
  date published: 2020-04-23
album: B.B
  type: MusicAlbum
  date published: 2020-04-27
album: J.Z
  type: MusicAlbum
  date published: 2020-05-15
album: Hit
  type: MusicAlbum
  date published: 2020-07-25
album: Баллада
  type: MusicAlbum
  date published: 2020-09-11
album: Came Up From The Bottom
  type: MusicAlbum
  date published: 2020-09-28
album: We Slap Rappers
  type: MusicAlbum
  date published: 2020-12-20
album: 5 AM Freestyle
  type: MusicAlbum
  date published: 2020-12-20
album: We Slap Rappers
  type: MusicAlbum
  date published: 2020-12-29
album: Back At It
  type: MusicAlbum
  date published: 2021-01-17
album: VIBES
  type: MusicAlbum
  date published: 2021-05-21
album: Beyond Regular
  type: MusicAlbum
  date published: 2021-07-08
album: A Bullet Named Love
  type: MusicAlbum
  date published: 2021-08-29
album: BAR2
  type: MusicAlbum
  date published: 2021-09-01
album: Visor
  type: MusicAlbum
  date published: 2021-09-03
album: Mad World
  type: MusicAlbum
  date published: 2021-09-04
album: AAAA ruby finals cheer
  type: MusicAlbum
  date published: 2021-09-11
album: AAA Ruby finals cheer
  type: MusicAlbum
  date published: 2021-09-11
album: Saifa
  type: MusicAlbum
  date published: 2021-09-16
album: Abandon
  type: MusicAlbum
  date published: 2021-09-19
album: Deadwood Sleep
  type: MusicAlbum
  date published: 2021-10-06
album: Deal Breaker Song
  type: MusicAlbum
  date published: 2021-10-06
album: Demo
  type: MusicAlbum
  date published: 2021-10-10
album: Letter To Myself
  type: MusicAlbum
  date published: 2022-02-10
album: Cash
  type: MusicAlbum
  date published: 2023-06-19
album: Born Ready
  type: MusicAlbum
  date published: 2023-09-24
album: YEAR OF THE GOAT
  type: MusicAlbum
  date published: 2023-12-31
album: Chef D’assaut
  type: MusicAlbum
  date published: 2024-08-19
album: Had One
  type: MusicAlbum
  date published: 2024-09-26
album: Wake Up
  type: MusicAlbum
  date published: 2025-03-07
  track: Wake Up
    type: MusicRecording
    duration: PT3M2S
    duration ms: 182726
    explicit: true
    by artist: Br
    in album: Wake Up
    isrc code: QZLL92544891
    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: Wake Up
album: Knock Knock
album: Bornrich
album: Year Of The Goat (Deluxe)
album: Pekaboo
album: Forgiveness
track: Drop Math
track: On vient du 91

Br
type: MusicGroup

Wake Up
type: MusicAlbum
date published: 2025-03-07

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-20T08:47:47+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x1295cc43568a0cbf93fce85ef13cf39ce3f8ac70f86ed76da4aec9c5c2a090ff

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 958853

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/958853

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZLL92544891

OTSTimestamp
type: PropertyValue
value: 2026-07-20T09:11:53Z

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 0x1295cc43568a0cbf93fce85ef13cf39ce3f8ac70f86ed76da4aec9c5c2a090ff. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/QZLL92544891.
date published: 2026-07-20T09:11:53Z

Wake Up
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 125.999
additional property: Musical Key
  type: PropertyValue
  value: 1
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.897
additional property: Energy
  type: PropertyValue
  value: 0.558
additional property: Speechiness
  type: PropertyValue
  value: 0.236
additional property: Acousticness
  type: PropertyValue
  value: 0.363
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.136
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.793
additional property: Loudness (dB)
  type: PropertyValue
  value: -11.519
additional property: Key Name
  type: PropertyValue
  value: C#
additional property: Mode Name
  type: PropertyValue
  value: Major

Knock Knock
type: MusicAlbum
date published: 2025-03-31

Bornrich
type: MusicAlbum
date published: 2025-05-05

Year Of The Goat (Deluxe)
type: MusicAlbum
date published: 2025-05-25
track: Shit
  type: MusicRecording
  duration: PT1M28S
  duration ms: 88071
  explicit: true
  by artist: Br
  in album: Year Of The Goat (Deluxe)
    type: MusicAlbum
    date published: 2025-05-25
  isrc code: QZMWW2515982
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T06:32:01+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf32960fc3595921324b32fc44e8a0e35652f6804b7315a896788cb4c4f9db928
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958838
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958838
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMWW2515982
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T07:01:21Z
  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 0xf32960fc3595921324b32fc44e8a0e35652f6804b7315a896788cb4c4f9db928. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZMWW2515982.
    date published: 2026-07-20T07:01:21Z
  audio: Shit
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 138.017
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.945
    additional property: Energy
      type: PropertyValue
      value: 0.392
    additional property: Speechiness
      type: PropertyValue
      value: 0.118
    additional property: Acousticness
      type: PropertyValue
      value: 0.21
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.003
    additional property: Liveness
      type: PropertyValue
      value: 0.085
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.224
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.704
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major

Pekaboo
type: MusicAlbum
date published: 2025-09-19
track: Pekaboo
  type: MusicRecording
  duration: PT1M57S
  duration ms: 117028
  explicit: true
  by artist: Br
  in album: Pekaboo
    type: MusicAlbum
    date published: 2025-09-19
  isrc code: QZGYN2501604
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-22T00:55:22+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1109794cbb2bb6e87cdfc6d21923c820754d8a0f1d99e7b7070eede015b23239
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959087
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959087
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGYN2501604
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-22T02:05:55Z
  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 0x1109794cbb2bb6e87cdfc6d21923c820754d8a0f1d99e7b7070eede015b23239. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZGYN2501604.
    date published: 2026-07-22T02:05:55Z
  audio: Pekaboo
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 102.016
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.744
    additional property: Energy
      type: PropertyValue
      value: 0.529
    additional property: Speechiness
      type: PropertyValue
      value: 0.331
    additional property: Acousticness
      type: PropertyValue
      value: 0.858
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.024
    additional property: Liveness
      type: PropertyValue
      value: 0.084
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.367
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.995
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Forgiveness
type: MusicAlbum
date published: 2025-10-13

Drop Math
type: MusicRecording
duration: PT3M29S
duration ms: 209519
explicit: false
by artist: nbs
by artist: Br
by artist: Novacain
in album: Budavets
  type: MusicAlbum
  date published: 2014-03-28
isrc code: HUB161113106
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T13:05:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x01713e1bac1aa278cb769909114c74c248011a66b131c49cc83f5b9f253d5a54
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960407
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUB161113106
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:26:30Z
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 0x01713e1bac1aa278cb769909114c74c248011a66b131c49cc83f5b9f253d5a54. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/HUB161113106.
  date published: 2026-07-31T13:26:30Z
audio: Drop Math
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.919
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.422
  additional property: Energy
    type: PropertyValue
    value: 0.951
  additional property: Speechiness
    type: PropertyValue
    value: 0.359
  additional property: Acousticness
    type: PropertyValue
    value: 0.187
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.523
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.723
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.027
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

On vient du 91
type: MusicRecording
duration: PT3M51S
duration ms: 231810
explicit: false
by artist: Alkpote
by artist: Tenebreuz Mafia
by artist: Brut
by artist: Br
in album: Alkpote et la crème du 91
  type: MusicAlbum
  date published: 2009-06-15
genre: french-rap
isrc code: FR0U91400443
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T21:31:48+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x83db326df3bcae8de7cf6816a83c76fbcff364d8198d63df70b5b84e5a3506ce
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960473
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960473
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR0U91400443
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T22:27:44Z
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 0x83db326df3bcae8de7cf6816a83c76fbcff364d8198d63df70b5b84e5a3506ce. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/FR0U91400443.
  date published: 2026-07-31T22:27:44Z
audio: On vient du 91
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.585
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.572
  additional property: Energy
    type: PropertyValue
    value: 0.778
  additional property: Speechiness
    type: PropertyValue
    value: 0.432
  additional property: Acousticness
    type: PropertyValue
    value: 0.631
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.104
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.752
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.89
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major