Cáu
type: MusicGroup
genre: vietnam indie
genre: v-pop
popularity: 11
followers: 1163
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x80abb1ad7a2aae4b0b115c6df042231b5028bcf5d2076b4b561f2261352a2a56
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953710
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953710
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7dfa287a-aff5-4c53-b97c-7447b95757ce.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7dfa287a-aff5-4c53-b97c-7447b95757ce.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7dfa287a-aff5-4c53-b97c-7447b95757ce
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T23:32:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x80abb1ad7a2aae4b0b115c6df042231b5028bcf5d2076b4b561f2261352a2a56","name":"Cáu","registered_at":"2026-06-14T17:43:08Z","symbol":"NIM0528115","token_address":"0x8eb27cb1f0b7b10aba1ace5645f51e61cd44b8e9","type":"artist","uuid":"7dfa287a-aff5-4c53-b97c-7447b95757ce"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80abb1ad7a2aae4b0b115c6df042231b5028bcf5d2076b4b561f2261352a2a56. Chain 2 (Bitcoin): anchored in block 953710 (2026-06-14T23:32:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7dfa287a-aff5-4c53-b97c-7447b95757ce.json and https://artists.proofprofile.net/proofs/artist/7dfa287a-aff5-4c53-b97c-7447b95757ce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T23:32:42Z
  text: {"copyright_id":"0x80abb1ad7a2aae4b0b115c6df042231b5028bcf5d2076b4b561f2261352a2a56","name":"Cáu","registered_at":"2026-06-14T17:43:08Z","symbol":"NIM0528115","token_address":"0x8eb27cb1f0b7b10aba1ace5645f51e61cd44b8e9","type":"artist","uuid":"7dfa287a-aff5-4c53-b97c-7447b95757ce"}
album: KHÔNG SAY
  type: MusicAlbum
  date published: 2020-10-20
album: em lai di dau day?
  type: MusicAlbum
  date published: 2023-05-21