Les Frères Casquette
type: MusicGroup
popularity: 8
followers: 496
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x54d237da4325dbce957fea870b2f87d3cc19428b64f5e9bfe856a9f27612d87c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954069
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954069
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7a7e0d98-d7cc-43c7-96cd-3507d207d9a3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7a7e0d98-d7cc-43c7-96cd-3507d207d9a3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7a7e0d98-d7cc-43c7-96cd-3507d207d9a3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:30:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x54d237da4325dbce957fea870b2f87d3cc19428b64f5e9bfe856a9f27612d87c","name":"Les Frères Casquette","registered_at":"2026-06-17T08:21:37Z","symbol":"NIM1336725","token_address":"0xbe6165809ec6309a20ab91ac2ffe096a69196927","type":"artist","uuid":"7a7e0d98-d7cc-43c7-96cd-3507d207d9a3"}
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 0x54d237da4325dbce957fea870b2f87d3cc19428b64f5e9bfe856a9f27612d87c. Chain 2 (Bitcoin): anchored in block 954069 (2026-06-17T08:30:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a7e0d98-d7cc-43c7-96cd-3507d207d9a3.json and https://artists.proofprofile.net/proofs/artist/7a7e0d98-d7cc-43c7-96cd-3507d207d9a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:30:25Z
  text: {"copyright_id":"0x54d237da4325dbce957fea870b2f87d3cc19428b64f5e9bfe856a9f27612d87c","name":"Les Frères Casquette","registered_at":"2026-06-17T08:21:37Z","symbol":"NIM1336725","token_address":"0xbe6165809ec6309a20ab91ac2ffe096a69196927","type":"artist","uuid":"7a7e0d98-d7cc-43c7-96cd-3507d207d9a3"}
album: L'année Scolaire
  type: MusicAlbum
  date published: 2012-08-17
album: Le Monde à l'Envers
  type: MusicAlbum
  date published: 2014-01-20
album: Le Monde à l'Envers
  type: MusicAlbum
  date published: 2014-01-20
album: La vie devant nous
  type: MusicAlbum
  date published: 2018-06-15
album: La star
  type: MusicAlbum
  date published: 2018-09-07
album: La vie devant nous
  type: MusicAlbum
  date published: 2018-09-21
album: Demain c'est bien
  type: MusicAlbum
  date published: 2022-12-23
album: Pop Culture
  type: MusicAlbum
  date published: 2024-02-21
album: C Pa Ta Journée
  type: MusicAlbum
  date published: 2024-03-27
album: Ma Grande Soeur
  type: MusicAlbum
  date published: 2024-04-24
album: Cette Chanson
  type: MusicAlbum
  date published: 2024-05-29
album: Nouvelle G
  type: MusicAlbum
  date published: 2024-06-26
album: Nouvelle G
  type: MusicAlbum
  date published: 2024-06-26
album: Good News
  type: MusicAlbum
  date published: 2025-10-10
album: Mon père écoute du Boom Bap
  type: MusicAlbum
  date published: 2025-11-07