mc 20
type: MusicGroup
genre: fado
popularity: 3
followers: 390
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcd0ea9d06416185d5ea509d48f9e1ba4e23c983845549c9471fd65c8de6485b7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954593
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954593
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bda01bb6-2afa-492a-ba63-dc7899f12b00.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bda01bb6-2afa-492a-ba63-dc7899f12b00.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bda01bb6-2afa-492a-ba63-dc7899f12b00
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:46:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcd0ea9d06416185d5ea509d48f9e1ba4e23c983845549c9471fd65c8de6485b7","name":"mc 20","registered_at":"2026-06-20T17:53:12Z","symbol":"NIM1672588","token_address":"0x3f904b4dce0ff55bfabbbdb67b0a05d5ca11ec59","type":"artist","uuid":"bda01bb6-2afa-492a-ba63-dc7899f12b00"}
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 0xcd0ea9d06416185d5ea509d48f9e1ba4e23c983845549c9471fd65c8de6485b7. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bda01bb6-2afa-492a-ba63-dc7899f12b00.json and https://artists.proofprofile.net/proofs/artist/bda01bb6-2afa-492a-ba63-dc7899f12b00.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:46:01Z
  text: {"copyright_id":"0xcd0ea9d06416185d5ea509d48f9e1ba4e23c983845549c9471fd65c8de6485b7","name":"mc 20","registered_at":"2026-06-20T17:53:12Z","symbol":"NIM1672588","token_address":"0x3f904b4dce0ff55bfabbbdb67b0a05d5ca11ec59","type":"artist","uuid":"bda01bb6-2afa-492a-ba63-dc7899f12b00"}
album: Selva Proibida
  type: MusicAlbum
  date published: 2025-07-05