Isain Duo
type: MusicGroup
popularity: 5
followers: 8
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe8f3cfe7f61c30affd5ec4cf097b962fdfe543e0882ae7c6984be2bbad0ca1bd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a26c2033-345e-4947-b212-6d7ac60535f8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a26c2033-345e-4947-b212-6d7ac60535f8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a26c2033-345e-4947-b212-6d7ac60535f8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe8f3cfe7f61c30affd5ec4cf097b962fdfe543e0882ae7c6984be2bbad0ca1bd","name":"Isain Duo","registered_at":"2026-06-20T06:14:06Z","symbol":"NIM1536815","token_address":"0xfe02672e16851611d2e158acad9fd15ca4478624","type":"artist","uuid":"a26c2033-345e-4947-b212-6d7ac60535f8"}
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 0xe8f3cfe7f61c30affd5ec4cf097b962fdfe543e0882ae7c6984be2bbad0ca1bd. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a26c2033-345e-4947-b212-6d7ac60535f8.json and https://artists.proofprofile.net/proofs/artist/a26c2033-345e-4947-b212-6d7ac60535f8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0xe8f3cfe7f61c30affd5ec4cf097b962fdfe543e0882ae7c6984be2bbad0ca1bd","name":"Isain Duo","registered_at":"2026-06-20T06:14:06Z","symbol":"NIM1536815","token_address":"0xfe02672e16851611d2e158acad9fd15ca4478624","type":"artist","uuid":"a26c2033-345e-4947-b212-6d7ac60535f8"}
album: Nadie
  type: MusicAlbum
  date published: 2021-07-12