René Vácha
type: MusicGroup
genre: celtic
popularity: 3
followers: 9
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc8adca123bd68a996b13f836f2e0f7394de826ac27dc52814606d9c5f07710d9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954513
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9e46f5d9-3f9b-4a57-b80b-77f82b49af5c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9e46f5d9-3f9b-4a57-b80b-77f82b49af5c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9e46f5d9-3f9b-4a57-b80b-77f82b49af5c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T06:31:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc8adca123bd68a996b13f836f2e0f7394de826ac27dc52814606d9c5f07710d9","name":"René Vácha","registered_at":"2026-06-20T04:30:51Z","symbol":"NIM1512872","token_address":"0x9ca055d4913562722ee65a6337ecccd3385f9416","type":"artist","uuid":"9e46f5d9-3f9b-4a57-b80b-77f82b49af5c"}
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 0xc8adca123bd68a996b13f836f2e0f7394de826ac27dc52814606d9c5f07710d9. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9e46f5d9-3f9b-4a57-b80b-77f82b49af5c.json and https://artists.proofprofile.net/proofs/artist/9e46f5d9-3f9b-4a57-b80b-77f82b49af5c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T06:31:18Z
  text: {"copyright_id":"0xc8adca123bd68a996b13f836f2e0f7394de826ac27dc52814606d9c5f07710d9","name":"René Vácha","registered_at":"2026-06-20T04:30:51Z","symbol":"NIM1512872","token_address":"0x9ca055d4913562722ee65a6337ecccd3385f9416","type":"artist","uuid":"9e46f5d9-3f9b-4a57-b80b-77f82b49af5c"}