Sfiso S
type: MusicGroup
popularity: 2
followers: 66
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5a2df528a7002895bc638c86bd8ef11e9fb58827783dec56bdee65495e48378c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954063
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954063
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/480425bb-5625-42da-865f-781295c80172.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/480425bb-5625-42da-865f-781295c80172.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/480425bb-5625-42da-865f-781295c80172
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T07:49:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5a2df528a7002895bc638c86bd8ef11e9fb58827783dec56bdee65495e48378c","name":"Sfiso S","registered_at":"2026-06-16T14:39:19Z","symbol":"NIM1083287","token_address":"0x77e51a251130472187c4a7e916cfe9e5b8141797","type":"artist","uuid":"480425bb-5625-42da-865f-781295c80172"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2df528a7002895bc638c86bd8ef11e9fb58827783dec56bdee65495e48378c. Chain 2 (Bitcoin): anchored in block 954063 (2026-06-17T07:49:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/480425bb-5625-42da-865f-781295c80172.json and https://artists.proofprofile.net/proofs/artist/480425bb-5625-42da-865f-781295c80172.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T07:49:29Z
  text: {"copyright_id":"0x5a2df528a7002895bc638c86bd8ef11e9fb58827783dec56bdee65495e48378c","name":"Sfiso S","registered_at":"2026-06-16T14:39:19Z","symbol":"NIM1083287","token_address":"0x77e51a251130472187c4a7e916cfe9e5b8141797","type":"artist","uuid":"480425bb-5625-42da-865f-781295c80172"}
album: Yahweh
  type: MusicAlbum
  date published: 2021-05-24