Piotr Selim
type: MusicGroup
popularity: 4
followers: 464
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc2f6fa165d4b8a05abc8af0e2ebb24415a6399b6cb57a40be56a0b1c1339b4dc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954035
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954035
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3bf8879e-e87b-4489-940d-88ccb1e997b2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3bf8879e-e87b-4489-940d-88ccb1e997b2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3bf8879e-e87b-4489-940d-88ccb1e997b2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T02:39:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc2f6fa165d4b8a05abc8af0e2ebb24415a6399b6cb57a40be56a0b1c1339b4dc","name":"Piotr Selim","registered_at":"2026-06-16T10:30:52Z","symbol":"NIM1024028","token_address":"0x445924633f4d1d9508d07d428f0b4ff712fe6c21","type":"artist","uuid":"3bf8879e-e87b-4489-940d-88ccb1e997b2"}
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 0xc2f6fa165d4b8a05abc8af0e2ebb24415a6399b6cb57a40be56a0b1c1339b4dc. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3bf8879e-e87b-4489-940d-88ccb1e997b2.json and https://artists.proofprofile.net/proofs/artist/3bf8879e-e87b-4489-940d-88ccb1e997b2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xc2f6fa165d4b8a05abc8af0e2ebb24415a6399b6cb57a40be56a0b1c1339b4dc","name":"Piotr Selim","registered_at":"2026-06-16T10:30:52Z","symbol":"NIM1024028","token_address":"0x445924633f4d1d9508d07d428f0b4ff712fe6c21","type":"artist","uuid":"3bf8879e-e87b-4489-940d-88ccb1e997b2"}
album: W rytmie bolera
  type: MusicAlbum
  date published: 2012-06-01
album: Uważnie
  type: MusicAlbum
  date published: 2022-06-10