The Calliope
type: MusicGroup
genre: acid rock
genre: psychedelic rock
popularity: 3
followers: 88
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x034f3d674d9706b29d1c5eec221e624d8c412335043daf7f9653bd87898d4047
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954019
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954019
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/37219593-a045-44cf-8761-85cfeb379945.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/37219593-a045-44cf-8761-85cfeb379945.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/37219593-a045-44cf-8761-85cfeb379945
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T23:44:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x034f3d674d9706b29d1c5eec221e624d8c412335043daf7f9653bd87898d4047","name":"The Calliope","registered_at":"2026-06-16T08:48:35Z","symbol":"NIM0999617","token_address":"0xdd119ce8acd4eaff81a1215c964e3a2e7bc0df73","type":"artist","uuid":"37219593-a045-44cf-8761-85cfeb379945"}
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 0x034f3d674d9706b29d1c5eec221e624d8c412335043daf7f9653bd87898d4047. Chain 2 (Bitcoin): anchored in block 954019 (2026-06-16T23:44:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/37219593-a045-44cf-8761-85cfeb379945.json and https://artists.proofprofile.net/proofs/artist/37219593-a045-44cf-8761-85cfeb379945.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T23:44:13Z
  text: {"copyright_id":"0x034f3d674d9706b29d1c5eec221e624d8c412335043daf7f9653bd87898d4047","name":"The Calliope","registered_at":"2026-06-16T08:48:35Z","symbol":"NIM0999617","token_address":"0xdd119ce8acd4eaff81a1215c964e3a2e7bc0df73","type":"artist","uuid":"37219593-a045-44cf-8761-85cfeb379945"}
album: Steamed
  type: MusicAlbum
  date published: 1969-01-01
  track: California Dreaming
    type: MusicRecording
    duration: PT3M41S
    duration ms: 221586
    explicit: false
    by artist: The Calliope
    in album: Steamed
      type: MusicAlbum
      date published: 1969-01-01
    genre: acid rock
    genre: psychedelic rock
    isrc code: USSM11912573
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T14:15:20+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa607433fa6b238e97b5978d79ab5b7eb585c637aa740215e4e26d13f6ca35f8c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958746
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958746
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11912573
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T15:36:35Z
    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 0xa607433fa6b238e97b5978d79ab5b7eb585c637aa740215e4e26d13f6ca35f8c. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11912573 — a six-check JSON result.
      date published: 2026-07-19T15:36:35Z
    audio: California Dreaming
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 115.886
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.405
      additional property: Energy
        type: PropertyValue
        value: 0.535
      additional property: Speechiness
        type: PropertyValue
        value: 0.045
      additional property: Acousticness
        type: PropertyValue
        value: 0.129
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.014
      additional property: Liveness
        type: PropertyValue
        value: 0.302
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.257
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.605
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor