AnnJo
type: MusicGroup
popularity: 4
followers: 91
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6ae60f9cb8e76efd04d1d71e0d6b9163c33c49caf6bbd650bdd04a6afd360c63
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/2a928c7e-451d-405a-a610-d0fdc78a9348.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2a928c7e-451d-405a-a610-d0fdc78a9348.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2a928c7e-451d-405a-a610-d0fdc78a9348
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:31:10Z
additional property: OTSCanonicalRecord
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 0x6ae60f9cb8e76efd04d1d71e0d6b9163c33c49caf6bbd650bdd04a6afd360c63. 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/2a928c7e-451d-405a-a610-d0fdc78a9348.json and https://artists.proofprofile.net/proofs/artist/2a928c7e-451d-405a-a610-d0fdc78a9348.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
album: Perfect (Exceeder)
  type: MusicAlbum
  date published: 2024-09-20
  track: Perfect (Exceeder)
    type: MusicRecording
    duration: PT2M22S
    duration ms: 142283
    explicit: false
    by artist: AnnJo
    in album: Perfect (Exceeder)
      type: MusicAlbum
      date published: 2024-09-20
    isrc code: QMBZ92411609
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T06:26:23+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc4d8f8afa8580afb16ce7614e30badff9270cd16e4fe21027e3c0c2ba9d53438
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958838
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958838
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92411609
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T09:28:32Z
    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 0xc4d8f8afa8580afb16ce7614e30badff9270cd16e4fe21027e3c0c2ba9d53438. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:28:32Z), 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/QMBZ92411609.
      date published: 2026-07-20T09:28:32Z
    audio: Perfect (Exceeder)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 135.042
      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: 0.747
      additional property: Energy
        type: PropertyValue
        value: 0.793
      additional property: Speechiness
        type: PropertyValue
        value: 0.186
      additional property: Acousticness
        type: PropertyValue
        value: 0.016
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.151
      additional property: Liveness
        type: PropertyValue
        value: 0.101
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.278
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.738
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Backseat
  type: MusicAlbum
  date published: 2024-12-13
album: Backseat (Mixes)
  type: MusicAlbum
  date published: 2025-04-18