Nicolas Karasiewicz
type: MusicGroup
popularity: 2
followers: 12
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x21401723bb1043f29da8229330caae608ccc4df33310244298e5deaf7cb523cb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8e270d0b-2bae-444d-99ea-436d575f619e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8e270d0b-2bae-444d-99ea-436d575f619e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8e270d0b-2bae-444d-99ea-436d575f619e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x21401723bb1043f29da8229330caae608ccc4df33310244298e5deaf7cb523cb","name":"Nicolas Karasiewicz","registered_at":"2026-06-17T15:17:10Z","symbol":"NIM1435761","token_address":"0xd80365aaca59b5f8c7f379aaf35c86fcc534bdce","type":"artist","uuid":"8e270d0b-2bae-444d-99ea-436d575f619e"}
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 0x21401723bb1043f29da8229330caae608ccc4df33310244298e5deaf7cb523cb. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e270d0b-2bae-444d-99ea-436d575f619e.json and https://artists.proofprofile.net/proofs/artist/8e270d0b-2bae-444d-99ea-436d575f619e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x21401723bb1043f29da8229330caae608ccc4df33310244298e5deaf7cb523cb","name":"Nicolas Karasiewicz","registered_at":"2026-06-17T15:17:10Z","symbol":"NIM1435761","token_address":"0xd80365aaca59b5f8c7f379aaf35c86fcc534bdce","type":"artist","uuid":"8e270d0b-2bae-444d-99ea-436d575f619e"}
album: Feu éternel
  type: MusicAlbum
  date published: 2025-07-28
album: Papa
  type: MusicAlbum
  date published: 2025-07-29
album: La fée blanche
  type: MusicAlbum
  date published: 2025-07-29
album: Mes super-héros
  type: MusicAlbum
  date published: 2025-07-30
album: Ma princesse
  type: MusicAlbum
  date published: 2025-07-30
album: La fête est plus folle
  type: MusicAlbum
  date published: 2025-07-31
album: Le verre à moitié plein
  type: MusicAlbum
  date published: 2025-07-31
album: Mon étoile
  type: MusicAlbum
  date published: 2025-08-01
album: Le chemin
  type: MusicAlbum
  date published: 2025-08-01
album: Rêve et réalité
  type: MusicAlbum
  date published: 2025-08-01
album: Je me souviens mon corps
  type: MusicAlbum
  date published: 2025-08-01
album: Le match
  type: MusicAlbum
  date published: 2025-08-01
album: Ma flamme
  type: MusicAlbum
  date published: 2025-08-01
album: Un œil sur le monde
  type: MusicAlbum
  date published: 2025-08-01
album: Vacances en musique
  type: MusicAlbum
  date published: 2025-08-01
album: Ton sourire
  type: MusicAlbum
  date published: 2025-08-01
album: Le trèfle à quatre feuilles
  type: MusicAlbum
  date published: 2025-08-04
album: La lettre
  type: MusicAlbum
  date published: 2025-08-07
album: Ombre et lumière
  type: MusicAlbum
  date published: 2025-08-10
album: Mes petits bonbons au miel
  type: MusicAlbum
  date published: 2025-08-10
album: Les amants maudits
  type: MusicAlbum
  date published: 2025-08-11
album: Une vie en accord
  type: MusicAlbum
  date published: 2025-08-12
album: Des mots sur mes maux
  type: MusicAlbum
  date published: 2025-08-13
album: Ange ou démon
  type: MusicAlbum
  date published: 2025-08-14
album: L'arbre qui cache la forêt
  type: MusicAlbum
  date published: 2025-08-17
album: La chambre des merveilles
  type: MusicAlbum
  date published: 2025-08-17
album: Le miroir aux alouettes
  type: MusicAlbum
  date published: 2025-08-18
album: Retour aux sources
  type: MusicAlbum
  date published: 2025-08-20
album: Mes plaisirs
  type: MusicAlbum
  date published: 2025-08-20
album: Sous ma cloche
  type: MusicAlbum
  date published: 2025-08-20
album: Au coup par coup
  type: MusicAlbum
  date published: 2025-08-22
album: Dans ma bulle
  type: MusicAlbum
  date published: 2025-08-26
album: Mon bracelet
  type: MusicAlbum
  date published: 2025-08-27
album: La pause
  type: MusicAlbum
  date published: 2025-08-29
album: J'assume
  type: MusicAlbum
  date published: 2025-08-29
album: Attention aux freins
  type: MusicAlbum
  date published: 2025-08-30
album: Un pas pour Carole
  type: MusicAlbum
  date published: 2025-11-09