Joan Dowland
type: MusicGroup
popularity: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6dd5128537bf04de96ac9c0624e1ead6cd9a3f748d89efe96efee2262a8a07ff
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954580
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954580
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b6836cff-72ff-4666-9597-e20e9006f666.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b6836cff-72ff-4666-9597-e20e9006f666.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b6836cff-72ff-4666-9597-e20e9006f666
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T17:48:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6dd5128537bf04de96ac9c0624e1ead6cd9a3f748d89efe96efee2262a8a07ff","name":"Joan Dowland","registered_at":"2026-06-20T14:47:28Z","symbol":"NIM1634473","token_address":"0xf13a899711718ca0224ecdafd5603e3b62f0088e","type":"artist","uuid":"b6836cff-72ff-4666-9597-e20e9006f666"}
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 0x6dd5128537bf04de96ac9c0624e1ead6cd9a3f748d89efe96efee2262a8a07ff. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b6836cff-72ff-4666-9597-e20e9006f666.json and https://artists.proofprofile.net/proofs/artist/b6836cff-72ff-4666-9597-e20e9006f666.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T17:48:00Z
  text: {"copyright_id":"0x6dd5128537bf04de96ac9c0624e1ead6cd9a3f748d89efe96efee2262a8a07ff","name":"Joan Dowland","registered_at":"2026-06-20T14:47:28Z","symbol":"NIM1634473","token_address":"0xf13a899711718ca0224ecdafd5603e3b62f0088e","type":"artist","uuid":"b6836cff-72ff-4666-9597-e20e9006f666"}
album: Whispering Pines
  type: MusicAlbum
  date published: 2025-06-17
album: Peaceful Piano, Vol. 1
  type: MusicAlbum
  date published: 2025-06-25
  track: Seventh Reverie
    type: MusicRecording
    duration: PT2M5S
    duration ms: 125299
    explicit: false
    by artist: Joan Dowland
    in album: Peaceful Piano, Vol. 1
      type: MusicAlbum
      date published: 2025-06-25
    isrc code: QZTB62528516
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T21:12:46+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x916e1ce9f1426f34210bae0359dd6eb094655999d865c9f3c1f9a67519bb7528
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956634
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956634
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB62528516
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 0x916e1ce9f1426f34210bae0359dd6eb094655999d865c9f3c1f9a67519bb7528. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZTB62528516.
      date published: 2026-07-04T10:04:33Z
    audio: Seventh Reverie
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.191
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.421
      additional property: Energy
        type: PropertyValue
        value: 0.032
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.995
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.91
      additional property: Liveness
        type: PropertyValue
        value: 0.107
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.316
      additional property: Loudness (dB)
        type: PropertyValue
        value: -31.79
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Peacful Piano
  type: MusicAlbum
  date published: 2025-06-26