Captain, My Captain
type: MusicGroup
popularity: 3
followers: 88
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc13b910b3c9b09ba679cd29c2f97ad74019bd7021f9889d21fdb61c6f7274869
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953972
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953972
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2ae5d62f-a1d0-4c65-99ba-45abd22d0577.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2ae5d62f-a1d0-4c65-99ba-45abd22d0577.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2ae5d62f-a1d0-4c65-99ba-45abd22d0577
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:31:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc13b910b3c9b09ba679cd29c2f97ad74019bd7021f9889d21fdb61c6f7274869","name":"Captain, My Captain","registered_at":"2026-06-16T04:27:03Z","symbol":"NIM0937155","token_address":"0xec0ced4db5caa8a7437f9453ac7e2b0d4ecf318a","type":"artist","uuid":"2ae5d62f-a1d0-4c65-99ba-45abd22d0577"}
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 0xc13b910b3c9b09ba679cd29c2f97ad74019bd7021f9889d21fdb61c6f7274869. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2ae5d62f-a1d0-4c65-99ba-45abd22d0577.json and https://artists.proofprofile.net/proofs/artist/2ae5d62f-a1d0-4c65-99ba-45abd22d0577.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0xc13b910b3c9b09ba679cd29c2f97ad74019bd7021f9889d21fdb61c6f7274869","name":"Captain, My Captain","registered_at":"2026-06-16T04:27:03Z","symbol":"NIM0937155","token_address":"0xec0ced4db5caa8a7437f9453ac7e2b0d4ecf318a","type":"artist","uuid":"2ae5d62f-a1d0-4c65-99ba-45abd22d0577"}
album: Captain, My Captain
  type: MusicAlbum
  date published: 2008-01-01
  track: Something Strange
    type: MusicRecording
    duration: PT5M53S
    duration ms: 353840
    explicit: false
    by artist: Captain, My Captain
    in album: Captain, My Captain
      type: MusicAlbum
      date published: 2008-01-01
    isrc code: USHM20836190
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T14:26:15+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x498df6c7cb08a38fcac6920ae6dad6fab1306930b575dd9aa93b012580dc7c74
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958749
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958749
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM20836190
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T17:28:14Z
    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 0x498df6c7cb08a38fcac6920ae6dad6fab1306930b575dd9aa93b012580dc7c74. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:28:14Z), 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/USHM20836190.
      date published: 2026-07-19T17:28:14Z
    audio: Something Strange
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 135.318
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.586
      additional property: Energy
        type: PropertyValue
        value: 0.321
      additional property: Speechiness
        type: PropertyValue
        value: 0.026
      additional property: Acousticness
        type: PropertyValue
        value: 0.585
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.003
      additional property: Liveness
        type: PropertyValue
        value: 0.323
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.043
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.048
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: In Love With the Sky
  type: MusicAlbum
  date published: 2012-07-22
album: Vital Signs
  type: MusicAlbum
  date published: 2014-04-21
album: Wish
  type: MusicAlbum
  date published: 2018-05-13
album: You Don't Remember
  type: MusicAlbum
  date published: 2019-01-05