Monsieur Sémillon
type: MusicGroup
genre: lounge
popularity: 20
followers: 70
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0c7d1b68abaaa44d5da10b5d4e5d32a8945e82d8397e5fcdf57c78805de792e3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953660
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953660
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/541fa016-ef52-4a74-ae03-beae00771eef.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/541fa016-ef52-4a74-ae03-beae00771eef.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/541fa016-ef52-4a74-ae03-beae00771eef
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T17:20:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0c7d1b68abaaa44d5da10b5d4e5d32a8945e82d8397e5fcdf57c78805de792e3","name":"Monsieur Sémillon","registered_at":"2026-06-14T13:17:51Z","symbol":"NIM0464811","token_address":"0x2a104541336e6800a8378c6f15c9a37ce2542409","type":"artist","uuid":"541fa016-ef52-4a74-ae03-beae00771eef"}
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 0x0c7d1b68abaaa44d5da10b5d4e5d32a8945e82d8397e5fcdf57c78805de792e3. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/541fa016-ef52-4a74-ae03-beae00771eef.json and https://artists.proofprofile.net/proofs/artist/541fa016-ef52-4a74-ae03-beae00771eef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:49:28Z
  text: {"copyright_id":"0x0c7d1b68abaaa44d5da10b5d4e5d32a8945e82d8397e5fcdf57c78805de792e3","name":"Monsieur Sémillon","registered_at":"2026-06-14T13:17:51Z","symbol":"NIM0464811","token_address":"0x2a104541336e6800a8378c6f15c9a37ce2542409","type":"artist","uuid":"541fa016-ef52-4a74-ae03-beae00771eef"}
album: Days of Rain
  type: MusicAlbum
  date published: 2023-12-15
album: Peach Perfect
  type: MusicAlbum
  date published: 2024-02-09