Mathieu Kyriakidis
type: MusicGroup
popularity: 28
followers: 7
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x04206a221dc1077442f78c9f5266dba1cb9a8b22694053cf817398282f28cdb7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0cb12bf5-4d24-41c4-8e2b-fce6e7494cb6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0cb12bf5-4d24-41c4-8e2b-fce6e7494cb6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0cb12bf5-4d24-41c4-8e2b-fce6e7494cb6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x04206a221dc1077442f78c9f5266dba1cb9a8b22694053cf817398282f28cdb7","name":"Mathieu Kyriakidis","registered_at":"2026-06-12T15:00:19Z","symbol":"NIM0016841","token_address":"0x102529226de322f58529ae5bece925402d94d078","type":"artist","uuid":"0cb12bf5-4d24-41c4-8e2b-fce6e7494cb6"}
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 0x04206a221dc1077442f78c9f5266dba1cb9a8b22694053cf817398282f28cdb7. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0cb12bf5-4d24-41c4-8e2b-fce6e7494cb6.json and https://artists.proofprofile.net/proofs/artist/0cb12bf5-4d24-41c4-8e2b-fce6e7494cb6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x04206a221dc1077442f78c9f5266dba1cb9a8b22694053cf817398282f28cdb7","name":"Mathieu Kyriakidis","registered_at":"2026-06-12T15:00:19Z","symbol":"NIM0016841","token_address":"0x102529226de322f58529ae5bece925402d94d078","type":"artist","uuid":"0cb12bf5-4d24-41c4-8e2b-fce6e7494cb6"}
album: Privilèges
  type: MusicAlbum
  date published: 2024-08-01
album: La Nuit de l'Ours (bande originale)
  type: MusicAlbum
  date published: 2024-09-01
album: Le Conte des Sables d'Or (bande originale)
  type: MusicAlbum
  date published: 2024-09-01
album: Marceau et le Grand Rasant
  type: MusicAlbum
  date published: 2025-01-09
album: Variation pour un Chat
  type: MusicAlbum
  date published: 2025-02-15