Iza do Cavaco
type: MusicGroup
popularity: 5
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8c2cda5b0ed19a94918b9b5a4460396e197e7005e2eb592eacaa0ac6c4a23b6d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953918
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953918
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1b076aeb-5913-41ac-85ae-1c9dd3075f01.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1b076aeb-5913-41ac-85ae-1c9dd3075f01.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1b076aeb-5913-41ac-85ae-1c9dd3075f01
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T08:55:04Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8c2cda5b0ed19a94918b9b5a4460396e197e7005e2eb592eacaa0ac6c4a23b6d","name":"Iza do Cavaco","registered_at":"2026-06-15T22:56:25Z","symbol":"NIM0858183","token_address":"0xa3d85ef5e54592cca6e5d541f3fd811717dfecc5","type":"artist","uuid":"1b076aeb-5913-41ac-85ae-1c9dd3075f01"}
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 0x8c2cda5b0ed19a94918b9b5a4460396e197e7005e2eb592eacaa0ac6c4a23b6d. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1b076aeb-5913-41ac-85ae-1c9dd3075f01.json and https://artists.proofprofile.net/proofs/artist/1b076aeb-5913-41ac-85ae-1c9dd3075f01.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x8c2cda5b0ed19a94918b9b5a4460396e197e7005e2eb592eacaa0ac6c4a23b6d","name":"Iza do Cavaco","registered_at":"2026-06-15T22:56:25Z","symbol":"NIM0858183","token_address":"0xa3d85ef5e54592cca6e5d541f3fd811717dfecc5","type":"artist","uuid":"1b076aeb-5913-41ac-85ae-1c9dd3075f01"}