Josef Christof
type: MusicGroup
genre: avant-garde
popularity: 5
followers: 83
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc17a71bb634660841f7015e6b059cb53c3af350157a3c52984c9675c8a31c816
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b56d2e7e-4599-4a8c-be8a-9ab4448ddd5d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b56d2e7e-4599-4a8c-be8a-9ab4448ddd5d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b56d2e7e-4599-4a8c-be8a-9ab4448ddd5d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc17a71bb634660841f7015e6b059cb53c3af350157a3c52984c9675c8a31c816","name":"Josef Christof","registered_at":"2026-06-20T14:50:52Z","symbol":"NIM1633829","token_address":"0xc2b1e1aa059a50a63badbf516655af849f07903a","type":"artist","uuid":"b56d2e7e-4599-4a8c-be8a-9ab4448ddd5d"}
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 0xc17a71bb634660841f7015e6b059cb53c3af350157a3c52984c9675c8a31c816. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b56d2e7e-4599-4a8c-be8a-9ab4448ddd5d.json and https://artists.proofprofile.net/proofs/artist/b56d2e7e-4599-4a8c-be8a-9ab4448ddd5d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xc17a71bb634660841f7015e6b059cb53c3af350157a3c52984c9675c8a31c816","name":"Josef Christof","registered_at":"2026-06-20T14:50:52Z","symbol":"NIM1633829","token_address":"0xc2b1e1aa059a50a63badbf516655af849f07903a","type":"artist","uuid":"b56d2e7e-4599-4a8c-be8a-9ab4448ddd5d"}
album: Quarter-Tone Pieces
  type: MusicAlbum
  date published: 2006