Callum Stack
type: MusicGroup
genre: uk garage
popularity: 2
followers: 229
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4ce97013683800cc85a6f20e871ed9d47edd35063a42c61a45c080df1b4dc50e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a1bc3ecd-0e43-49e9-917f-6acf572ebaa5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a1bc3ecd-0e43-49e9-917f-6acf572ebaa5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a1bc3ecd-0e43-49e9-917f-6acf572ebaa5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4ce97013683800cc85a6f20e871ed9d47edd35063a42c61a45c080df1b4dc50e","name":"Callum Stack","registered_at":"2026-06-20T06:04:32Z","symbol":"NIM1533891","token_address":"0xa8e8009e0e0669cc59da11b2eaceae6b0e4ca59f","type":"artist","uuid":"a1bc3ecd-0e43-49e9-917f-6acf572ebaa5"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce97013683800cc85a6f20e871ed9d47edd35063a42c61a45c080df1b4dc50e. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a1bc3ecd-0e43-49e9-917f-6acf572ebaa5.json and https://artists.proofprofile.net/proofs/artist/a1bc3ecd-0e43-49e9-917f-6acf572ebaa5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0x4ce97013683800cc85a6f20e871ed9d47edd35063a42c61a45c080df1b4dc50e","name":"Callum Stack","registered_at":"2026-06-20T06:04:32Z","symbol":"NIM1533891","token_address":"0xa8e8009e0e0669cc59da11b2eaceae6b0e4ca59f","type":"artist","uuid":"a1bc3ecd-0e43-49e9-917f-6acf572ebaa5"}
album: Hab!tat
  type: MusicAlbum
  date published: 2020-07-06
album: Coming 4 U
  type: MusicAlbum
  date published: 2020-09-12
album: I Just Wanna Dance
  type: MusicAlbum
  date published: 2020-11-02
album: Departure
  type: MusicAlbum
  date published: 2021-05-02
album: Take U Back
  type: MusicAlbum
  date published: 2021-05-29
album: What It Takes to Be Human
  type: MusicAlbum
  date published: 2021-06-18
album: Typing...
  type: MusicAlbum
  date published: 2021-12-24
album: Open up
  type: MusicAlbum
  date published: 2022-12-16
album: When that riddim comes out
  type: MusicAlbum
  date published: 2023-09-02
album: Speedtest
  type: MusicAlbum
  date published: 2023-11-04
album: Losing u
  type: MusicAlbum
  date published: 2024-06-26
album: Wonder
  type: MusicAlbum
  date published: 2025-01-23
  track: Wonder
    type: MusicRecording
    duration: PT2M56S
    duration ms: 176938
    explicit: false
    by artist: Callum Stack
    in album: Wonder
      type: MusicAlbum
      date published: 2025-01-23
    genre: uk garage
    isrc code: QT3F42464044
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T20:22:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd41e31943ecb129bcda49a60d916e42b370bc4fe9e937e8ed69ed7bd9d2b66fd
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956856
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3F42464044
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:25:57Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd41e31943ecb129bcda49a60d916e42b370bc4fe9e937e8ed69ed7bd9d2b66fd. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QT3F42464044.
      date published: 2026-07-06T01:25:57Z
    audio: Wonder
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 134.99
      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: 0.799
      additional property: Energy
        type: PropertyValue
        value: 0.462
      additional property: Speechiness
        type: PropertyValue
        value: 0.439
      additional property: Acousticness
        type: PropertyValue
        value: 0.172
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.108
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.751
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.789
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major