JJ Ann
type: MusicGroup
genre: french pop
popularity: 6
followers: 219
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe62118df5d463bf11fd635c6effa99ab0c0724fe84a91c27ab342bbffa81c1e6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5637da7b-5b53-4436-b2dd-49153bf8293f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5637da7b-5b53-4436-b2dd-49153bf8293f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5637da7b-5b53-4436-b2dd-49153bf8293f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe62118df5d463bf11fd635c6effa99ab0c0724fe84a91c27ab342bbffa81c1e6","name":"JJ Ann","registered_at":"2026-06-16T19:42:31Z","symbol":"NIM1155633","token_address":"0x068cd91c9f4dca496599b754c8ff0de6bf21ab86","type":"artist","uuid":"5637da7b-5b53-4436-b2dd-49153bf8293f"}
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 0xe62118df5d463bf11fd635c6effa99ab0c0724fe84a91c27ab342bbffa81c1e6. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5637da7b-5b53-4436-b2dd-49153bf8293f.json and https://artists.proofprofile.net/proofs/artist/5637da7b-5b53-4436-b2dd-49153bf8293f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xe62118df5d463bf11fd635c6effa99ab0c0724fe84a91c27ab342bbffa81c1e6","name":"JJ Ann","registered_at":"2026-06-16T19:42:31Z","symbol":"NIM1155633","token_address":"0x068cd91c9f4dca496599b754c8ff0de6bf21ab86","type":"artist","uuid":"5637da7b-5b53-4436-b2dd-49153bf8293f"}
album: Regard
  type: MusicAlbum
  date published: 2021-03-22
album: Aurore
  type: MusicAlbum
  date published: 2021-05-12
album: Souffle froid
  type: MusicAlbum
  date published: 2021-10-22
album: Tout s'échappe
  type: MusicAlbum
  date published: 2022-08-26
album: Ce long silence
  type: MusicAlbum
  date published: 2022-10-14
album: Serment
  type: MusicAlbum
  date published: 2022-12-02
album: Pause
  type: MusicAlbum
  date published: 2023-04-28
album: Cold
  type: MusicAlbum
  date published: 2025-02-07
  track: Cold
    type: MusicRecording
    duration: PT4M9S
    duration ms: 249000
    explicit: false
    by artist: JJ Ann
    in album: Cold
      type: MusicAlbum
      date published: 2025-02-07
    genre: french pop
    isrc code: PLH492538155
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-13T18:27:53+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x139551f2fe3f22281a0755b93cc5fc5e6505222d0d8ab544309d01247b2a7720
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957898
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957898
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLH492538155
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-13T19:28:48Z
    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 0x139551f2fe3f22281a0755b93cc5fc5e6505222d0d8ab544309d01247b2a7720. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/PLH492538155.
      date published: 2026-07-13T19:28:48Z
    audio: Cold
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 80.022
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.331
      additional property: Energy
        type: PropertyValue
        value: 0.41
      additional property: Speechiness
        type: PropertyValue
        value: 0.076
      additional property: Acousticness
        type: PropertyValue
        value: 0.22
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.076
      additional property: Liveness
        type: PropertyValue
        value: 0.083
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.327
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.885
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor