Chris Blackwell
type: MusicGroup
description: Christopher Percy Gordon Blackwell OJ (born 22 June 1937) is a Jamaican-British former record producer and the founder of Island Records, which has been called "one of Britain's great independent labe
popularity: 10
followers: 567
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe17801ad2c3b9ec0c3042c565a15f4f2b2ec6ac2ab86f674b9ba63eab6162656. Chain 2 (Bitcoin): anchored in block 953867 (2026-06-16T01:09:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/057160ce-1f32-423a-b5e1-c60561de9288.json and https://artists.proofprofile.net/proofs/artist/057160ce-1f32-423a-b5e1-c60561de9288.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T01:09:47Z
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album: Pop Rock Euphoria
  type: MusicAlbum
  date published: 2007-12-12
album: Pop Rock Euphoria 2
  type: MusicAlbum
  date published: 2009-07-20
album: Drums Of Thunder - Film Trailer Music
  type: MusicAlbum
  date published: 2010-10-28
album: ARMAGEDDON
  type: MusicAlbum
  date published: 2019-08-30
album: ARMAGEDDON
  type: MusicAlbum
  date published: 2019-08-30
album: Game Changers Volume 2
  type: MusicAlbum
  date published: 2021-08-20
album: Game Changers Volume 2
  type: MusicAlbum
  date published: 2021-08-20
album: Game Changers Volume 3
  type: MusicAlbum
  date published: 2022-01-21
album: Retro Rock
  type: MusicAlbum
  date published: 2024-01-19
album: Game Changers
  type: MusicAlbum
  date published: 2024-06-28
album: Surftastic
  type: MusicAlbum
  date published: 2025-09-26
album: BIIIIG Drums
  type: MusicAlbum
  date published: 2025-10-24
track: Trodding - Single Version
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  by artist: Black Uhuru
  by artist: Chris Blackwell
  in album: Red
    type: MusicAlbum
    date published: 1981
  genre: reggae
  genre: roots-reggae
  genre: dub
  genre: rocksteady
  genre: ragga
  isrc code: USIR20300409
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  additional property: OTSVerificationAPI
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USIR20300409
  additional property: OTSTimestamp
    type: PropertyValue
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  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
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee6800917f31dae6f031fd4e8a7e5b8a7361a6a9e5e0555952ebd939270ea04. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USIR20300409.
    date published: 2026-07-02T03:55:08Z
  audio: Trodding - Single Version
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      value: 142.912
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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      value: 0.111
    additional property: Valence (Positivity)
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      value: 0.703
    additional property: Loudness (dB)
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      value: -12.822
    additional property: Key Name
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      value: E
    additional property: Mode Name
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      value: Minor
track: Failure & Depravity
  type: MusicRecording
  duration: PT1M35S
  duration ms: 95261
  explicit: false
  by artist: VITAL FLESH
  by artist: Chris Blackwell
  in album: Failure & Depravity
    type: MusicAlbum
    date published: 2023-10-23
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  additional property: OTSTimestamp
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  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
  audio: Failure & Depravity
track: Vision
track: Up To No Good

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed82839d9e507462f19126afca712de13022504a365498e7295de00a9231f27. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/TCAHM2386592.
date published: 2026-07-31T05:17:02Z

Failure & Depravity
type: AudioObject
additional property: Tempo (BPM)
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  value: 104.248
additional property: Musical Key
  type: PropertyValue
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additional property: Mode (Major/Minor)
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  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.572
additional property: Energy
  type: PropertyValue
  value: 0.712
additional property: Speechiness
  type: PropertyValue
  value: 0.138
additional property: Acousticness
  type: PropertyValue
  value: 0.007
additional property: Instrumentalness
  type: PropertyValue
  value: 0.456
additional property: Liveness
  type: PropertyValue
  value: 0.308
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.386
additional property: Loudness (dB)
  type: PropertyValue
  value: -13.299
additional property: Key Name
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  value: E
additional property: Mode Name
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Vision
type: MusicRecording
duration: PT3M8S
duration ms: 188000
explicit: false
by artist: Paul Mottram
by artist: Chris Blackwell
in album: Minimalism
  type: MusicAlbum
  date published: 2001
isrc code: USA560866881
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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 0x54cf86d0c2a8e3b30a3a3b11b4fbe9b49e039bbc623d82c1b8ff599b9406ea35. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USA560866881.
  date published: 2026-07-08T03:20:19Z
audio: Vision
  type: AudioObject
  additional property: Tempo (BPM)
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    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
    type: PropertyValue
    value: 0.462
  additional property: Energy
    type: PropertyValue
    value: 0.197
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.724
  additional property: Instrumentalness
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    value: 0.79
  additional property: Liveness
    type: PropertyValue
    value: 0.111
  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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    value: C
  additional property: Mode Name
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Up To No Good
type: MusicRecording
duration: PT1M43S
duration ms: 103000
explicit: false
by artist: Chris Blackwell
by artist: Paul Mottram
in album: Minimalism
  type: MusicAlbum
  date published: 2001
isrc code: USA560866882
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-30T03:34:01+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xf9a8c997125989d9442812496fce63208166f279c77b82efc74e417ffeff1fdd
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 960207
additional property: OTSBitcoinBlockVerifyURL
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  value: https://blockstream.info/api/block-height/960207
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560866882
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T04:47:22Z
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 0xf9a8c997125989d9442812496fce63208166f279c77b82efc74e417ffeff1fdd. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USA560866882.
  date published: 2026-07-30T04:47:22Z
audio: Up To No Good
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