Josef F
type: MusicGroup
popularity: 6
followers: 6
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x287297955ec4fa9a58afa6de66087c5f3dd43c50feedf7ab9eab14194d31121c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953841
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953841
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/005c0af2-992f-4d85-9831-3f9cb6f508eb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/005c0af2-992f-4d85-9831-3f9cb6f508eb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/005c0af2-992f-4d85-9831-3f9cb6f508eb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T22:20:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x287297955ec4fa9a58afa6de66087c5f3dd43c50feedf7ab9eab14194d31121c","name":"Josef F","registered_at":"2026-06-15T13:37:31Z","symbol":"NIM0725058","token_address":"0x5d1f9472ea903e4787b977b471af6700219a97b1","type":"artist","uuid":"005c0af2-992f-4d85-9831-3f9cb6f508eb"}
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 0x287297955ec4fa9a58afa6de66087c5f3dd43c50feedf7ab9eab14194d31121c. Chain 2 (Bitcoin): anchored in block 953841 (2026-06-15T22:20:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/005c0af2-992f-4d85-9831-3f9cb6f508eb.json and https://artists.proofprofile.net/proofs/artist/005c0af2-992f-4d85-9831-3f9cb6f508eb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T22:20:26Z
  text: {"copyright_id":"0x287297955ec4fa9a58afa6de66087c5f3dd43c50feedf7ab9eab14194d31121c","name":"Josef F","registered_at":"2026-06-15T13:37:31Z","symbol":"NIM0725058","token_address":"0x5d1f9472ea903e4787b977b471af6700219a97b1","type":"artist","uuid":"005c0af2-992f-4d85-9831-3f9cb6f508eb"}