Laurent David
type: MusicGroup
genre: french jazz
genre: gnawa
description: Laurent David (born 9 January 1971) is a French football manager and former player who manages Les Herbiers VF. A midfielder, he played in Ligue 1 for Martigues and in Ligue 2 for Brest, Sedan, Mulhou
popularity: 2
followers: 305
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x26fa0a4723666aa481c311d6b236b4d0370a465f155b9c83c7fab6826f107f4c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953959
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953959
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2756a132-0c00-4d2b-bdba-b22cfa08af44.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2756a132-0c00-4d2b-bdba-b22cfa08af44.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2756a132-0c00-4d2b-bdba-b22cfa08af44
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T14:51:55Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x26fa0a4723666aa481c311d6b236b4d0370a465f155b9c83c7fab6826f107f4c","name":"Laurent David","registered_at":"2026-06-16T03:19:00Z","symbol":"NIM0920892","token_address":"0x1ff910e20bce1020e613ee745488051f12091d3a","type":"artist","uuid":"2756a132-0c00-4d2b-bdba-b22cfa08af44"}
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 0x26fa0a4723666aa481c311d6b236b4d0370a465f155b9c83c7fab6826f107f4c. Chain 2 (Bitcoin): anchored in block 953959 (2026-06-16T14:51:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2756a132-0c00-4d2b-bdba-b22cfa08af44.json and https://artists.proofprofile.net/proofs/artist/2756a132-0c00-4d2b-bdba-b22cfa08af44.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T14:51:55Z
  text: {"copyright_id":"0x26fa0a4723666aa481c311d6b236b4d0370a465f155b9c83c7fab6826f107f4c","name":"Laurent David","registered_at":"2026-06-16T03:19:00Z","symbol":"NIM0920892","token_address":"0x1ff910e20bce1020e613ee745488051f12091d3a","type":"artist","uuid":"2756a132-0c00-4d2b-bdba-b22cfa08af44"}
album: The Way Things Go
  type: MusicAlbum
  date published: 2012