John Spence
type: MusicGroup
popularity: 10
followers: 197
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8548d18ff09ee4569f9b17d9213e6d091d51e3ed5860bb56998faa85f3d461b7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953980
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953980
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2c5b5ad8-a676-45f6-b89f-b4e93f5c8720.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2c5b5ad8-a676-45f6-b89f-b4e93f5c8720.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2c5b5ad8-a676-45f6-b89f-b4e93f5c8720
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T17:16:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8548d18ff09ee4569f9b17d9213e6d091d51e3ed5860bb56998faa85f3d461b7","name":"John Spence","registered_at":"2026-06-16T04:59:40Z","symbol":"NIM0944938","token_address":"0x25525e56fe37ee9d9dc730b8499b2cb2a44fb8a0","type":"artist","uuid":"2c5b5ad8-a676-45f6-b89f-b4e93f5c8720"}
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 0x8548d18ff09ee4569f9b17d9213e6d091d51e3ed5860bb56998faa85f3d461b7. Chain 2 (Bitcoin): anchored in block 953980 (2026-06-16T17:16:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2c5b5ad8-a676-45f6-b89f-b4e93f5c8720.json and https://artists.proofprofile.net/proofs/artist/2c5b5ad8-a676-45f6-b89f-b4e93f5c8720.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T17:16:51Z
  text: {"copyright_id":"0x8548d18ff09ee4569f9b17d9213e6d091d51e3ed5860bb56998faa85f3d461b7","name":"John Spence","registered_at":"2026-06-16T04:59:40Z","symbol":"NIM0944938","token_address":"0x25525e56fe37ee9d9dc730b8499b2cb2a44fb8a0","type":"artist","uuid":"2c5b5ad8-a676-45f6-b89f-b4e93f5c8720"}
album: Rip Tide (Original Motion Picture Score)
  type: MusicAlbum
  date published: 2018-01-29
  track: Into the Water
    type: MusicRecording
    duration: PT1M24S
    duration ms: 84565
    explicit: false
    by artist: John Spence
    in album: Rip Tide (Original Motion Picture Score)
      type: MusicAlbum
      date published: 2018-01-29
    isrc code: TCADM1807116
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T08:31:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1e701d0008b00fea402cc2475cf230c876261b26bba0772676bd122ecf7777b9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956639
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADM1807116
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    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 0x1e701d0008b00fea402cc2475cf230c876261b26bba0772676bd122ecf7777b9. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCADM1807116.
      date published: 2026-07-04T11:19:20Z
    audio: Into the Water
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 105.094
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.534
      additional property: Energy
        type: PropertyValue
        value: 0.468
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.735
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.938
      additional property: Liveness
        type: PropertyValue
        value: 0.094
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.223
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.752
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Illicit Rhythms
  type: MusicAlbum
  date published: 2022-01-23