Ivan Hoznedr
type: MusicGroup
popularity: 3
followers: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5651385c2f1a0a452b7875775ab93045e26339c6be54e57248246636d9231966
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954569
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954569
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b34d0774-536e-455d-b62c-67ebab0b7887.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b34d0774-536e-455d-b62c-67ebab0b7887.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b34d0774-536e-455d-b62c-67ebab0b7887
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T14:36:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5651385c2f1a0a452b7875775ab93045e26339c6be54e57248246636d9231966","name":"Ivan Hoznedr","registered_at":"2026-06-20T13:05:34Z","symbol":"NIM1618509","token_address":"0xe5ad6e10570891aed4bd7e16eef21e1acc1ef5b8","type":"artist","uuid":"b34d0774-536e-455d-b62c-67ebab0b7887"}
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 0x5651385c2f1a0a452b7875775ab93045e26339c6be54e57248246636d9231966. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b34d0774-536e-455d-b62c-67ebab0b7887.json and https://artists.proofprofile.net/proofs/artist/b34d0774-536e-455d-b62c-67ebab0b7887.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T14:36:29Z
  text: {"copyright_id":"0x5651385c2f1a0a452b7875775ab93045e26339c6be54e57248246636d9231966","name":"Ivan Hoznedr","registered_at":"2026-06-20T13:05:34Z","symbol":"NIM1618509","token_address":"0xe5ad6e10570891aed4bd7e16eef21e1acc1ef5b8","type":"artist","uuid":"b34d0774-536e-455d-b62c-67ebab0b7887"}