Maîtrise de Reims
type: MusicGroup
popularity: 4
followers: 104
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x87c9b74a5803d7b899af669d6d62ce8531f8787dbee42fa281ecb0c478a4dd7a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954729
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954729
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fb852e80-f5ae-4cd0-b24b-0b543626e545.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fb852e80-f5ae-4cd0-b24b-0b543626e545.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fb852e80-f5ae-4cd0-b24b-0b543626e545
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:16:07Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x87c9b74a5803d7b899af669d6d62ce8531f8787dbee42fa281ecb0c478a4dd7a","name":"Maîtrise de Reims","registered_at":"2026-06-21T17:13:26Z","symbol":"NIM1983500","token_address":"0x0675ac03399925c81ef2c09ca73135ab5698971b","type":"artist","uuid":"fb852e80-f5ae-4cd0-b24b-0b543626e545"}
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 0x87c9b74a5803d7b899af669d6d62ce8531f8787dbee42fa281ecb0c478a4dd7a. Chain 2 (Bitcoin): anchored in block 954729 (2026-06-21T18:16:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb852e80-f5ae-4cd0-b24b-0b543626e545.json and https://artists.proofprofile.net/proofs/artist/fb852e80-f5ae-4cd0-b24b-0b543626e545.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:16:07Z
  text: {"copyright_id":"0x87c9b74a5803d7b899af669d6d62ce8531f8787dbee42fa281ecb0c478a4dd7a","name":"Maîtrise de Reims","registered_at":"2026-06-21T17:13:26Z","symbol":"NIM1983500","token_address":"0x0675ac03399925c81ef2c09ca73135ab5698971b","type":"artist","uuid":"fb852e80-f5ae-4cd0-b24b-0b543626e545"}
album: La Maîtrise de Reims chante sa cathédrale
  type: MusicAlbum
  date published: 2011
album: La Maîtrise de Reims chante Noël
  type: MusicAlbum
  date published: 2015-11-27
album: La Maîtrise de Reims chante Noël
  type: MusicAlbum
  date published: 2015-11-27
  track: Agnus Dei
    type: MusicRecording
    duration: PT5M22S
    duration ms: 322800
    explicit: false
    by artist: Maîtrise de Reims
    in album: La Maîtrise de Reims chante Noël
      type: MusicAlbum
      date published: 2015-11-27
    isrc code: FRX211510014
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T19:05:29+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8bde8ca67b56f2870e9829ce5282edffef84fccf285797c96eb8c68019c9c43e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959047
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959047
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX211510014
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T19:17:28Z
    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 0x8bde8ca67b56f2870e9829ce5282edffef84fccf285797c96eb8c68019c9c43e. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/FRX211510014.
      date published: 2026-07-21T19:17:28Z
    audio: Agnus Dei
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 99.579
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.312
      additional property: Energy
        type: PropertyValue
        value: 0.046
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.992
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.568
      additional property: Liveness
        type: PropertyValue
        value: 0.086
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.206
      additional property: Loudness (dB)
        type: PropertyValue
        value: -21.569
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: La Maîtrise de Reims chante sa cathédrale
  type: MusicAlbum
  date published: 2016
album: Magnificat de la paix
  type: MusicAlbum
  date published: 2017
album: Magnificat de la paix (Pour Notre Dame de Reims)
  type: MusicAlbum
  date published: 2017-03-10