Françoise-Henri Houbart
type: MusicGroup
popularity: 2
followers: 37
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb3372d37cdcc87f36133633f7cb782b8b6ba9ba595df5595ac84dd9552b882a5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954500
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954500
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9d8607da-9157-41f7-8919-6ffeff369815.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9d8607da-9157-41f7-8919-6ffeff369815.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9d8607da-9157-41f7-8919-6ffeff369815
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T04:47:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb3372d37cdcc87f36133633f7cb782b8b6ba9ba595df5595ac84dd9552b882a5","name":"Françoise-Henri Houbart","registered_at":"2026-06-20T04:15:49Z","symbol":"NIM1509584","token_address":"0xd3bc3afda8267505ce6f8bb9ec23a9c2a78f3421","type":"artist","uuid":"9d8607da-9157-41f7-8919-6ffeff369815"}
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 0xb3372d37cdcc87f36133633f7cb782b8b6ba9ba595df5595ac84dd9552b882a5. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d8607da-9157-41f7-8919-6ffeff369815.json and https://artists.proofprofile.net/proofs/artist/9d8607da-9157-41f7-8919-6ffeff369815.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T04:47:29Z
  text: {"copyright_id":"0xb3372d37cdcc87f36133633f7cb782b8b6ba9ba595df5595ac84dd9552b882a5","name":"Françoise-Henri Houbart","registered_at":"2026-06-20T04:15:49Z","symbol":"NIM1509584","token_address":"0xd3bc3afda8267505ce6f8bb9ec23a9c2a78f3421","type":"artist","uuid":"9d8607da-9157-41f7-8919-6ffeff369815"}
album: Johann Sebastian Bach, Trio Sonata No. 1 In E Flat, BWV 525
  type: MusicAlbum
  date published: 2009-02-16
album: Johann Sebastian Bach, Antonio Vivaldi, Organ Concerto In D Minor, BWV 596 / Rv 565
  type: MusicAlbum
  date published: 2009-02-16
album: Léon Boëllmann, Suite Gothique, Op. 25
  type: MusicAlbum
  date published: 2009-02-16