Erwann Tobie
type: MusicGroup
popularity: 3
followers: 101
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3aecafef882fbce8938bf669045d9641ef525e2d3f19889e1e0ee3bcb5f991db
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1806b4e1-d746-4c82-9a75-c40834b25a8f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1806b4e1-d746-4c82-9a75-c40834b25a8f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1806b4e1-d746-4c82-9a75-c40834b25a8f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3aecafef882fbce8938bf669045d9641ef525e2d3f19889e1e0ee3bcb5f991db","name":"Erwann Tobie","registered_at":"2026-06-15T21:59:24Z","symbol":"NIM0844574","token_address":"0xc517c52440fa4ffb37e7c20c484013a146b6e820","type":"artist","uuid":"1806b4e1-d746-4c82-9a75-c40834b25a8f"}
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 0x3aecafef882fbce8938bf669045d9641ef525e2d3f19889e1e0ee3bcb5f991db. Chain 2 (Bitcoin): anchored in block 953911 (2026-06-16T08:03:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1806b4e1-d746-4c82-9a75-c40834b25a8f.json and https://artists.proofprofile.net/proofs/artist/1806b4e1-d746-4c82-9a75-c40834b25a8f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T08:03:10Z
  text: {"copyright_id":"0x3aecafef882fbce8938bf669045d9641ef525e2d3f19889e1e0ee3bcb5f991db","name":"Erwann Tobie","registered_at":"2026-06-15T21:59:24Z","symbol":"NIM0844574","token_address":"0xc517c52440fa4ffb37e7c20c484013a146b6e820","type":"artist","uuid":"1806b4e1-d746-4c82-9a75-c40834b25a8f"}
album: À la cour du palais
  type: MusicAlbum
  date published: 2022-06-24