Guillaume Léglise
type: MusicGroup
genre: french indie pop
genre: french pop
popularity: 2
followers: 160
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe270e339e69eba9f6bd9a424b38f884076e11cb3fe1a0966dae687f70a968b88
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a90c4e57-084a-4f06-a311-9995614e722c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a90c4e57-084a-4f06-a311-9995614e722c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a90c4e57-084a-4f06-a311-9995614e722c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe270e339e69eba9f6bd9a424b38f884076e11cb3fe1a0966dae687f70a968b88","name":"Guillaume Léglise","registered_at":"2026-06-20T08:27:29Z","symbol":"NIM1569211","token_address":"0x4f4acc54e690ebfc834e6268994edd778e511937","type":"artist","uuid":"a90c4e57-084a-4f06-a311-9995614e722c"}
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 0xe270e339e69eba9f6bd9a424b38f884076e11cb3fe1a0966dae687f70a968b88. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a90c4e57-084a-4f06-a311-9995614e722c.json and https://artists.proofprofile.net/proofs/artist/a90c4e57-084a-4f06-a311-9995614e722c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0xe270e339e69eba9f6bd9a424b38f884076e11cb3fe1a0966dae687f70a968b88","name":"Guillaume Léglise","registered_at":"2026-06-20T08:27:29Z","symbol":"NIM1569211","token_address":"0x4f4acc54e690ebfc834e6268994edd778e511937","type":"artist","uuid":"a90c4e57-084a-4f06-a311-9995614e722c"}
album: EP 1
  type: MusicAlbum
  date published: 2018-06-01
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  type: MusicAlbum
  date published: 2019-09-20
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  type: MusicAlbum
  date published: 2023-01-18
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2023-03-14