Marcus Antonio
type: MusicGroup
popularity: 10
followers: 155
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb12acd29b05883ee5427394687448461d93d77d9fb4533e370fc8b2a8204f9c4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bc9e5c69-0f66-4028-beed-07ec0daeb4a1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bc9e5c69-0f66-4028-beed-07ec0daeb4a1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bc9e5c69-0f66-4028-beed-07ec0daeb4a1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb12acd29b05883ee5427394687448461d93d77d9fb4533e370fc8b2a8204f9c4","name":"Marcus Antonio","registered_at":"2026-06-20T17:32:49Z","symbol":"NIM1668840","token_address":"0x226d72efb6bc9dae6706da4e76b607ed829e1d05","type":"artist","uuid":"bc9e5c69-0f66-4028-beed-07ec0daeb4a1"}
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 0xb12acd29b05883ee5427394687448461d93d77d9fb4533e370fc8b2a8204f9c4. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bc9e5c69-0f66-4028-beed-07ec0daeb4a1.json and https://artists.proofprofile.net/proofs/artist/bc9e5c69-0f66-4028-beed-07ec0daeb4a1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xb12acd29b05883ee5427394687448461d93d77d9fb4533e370fc8b2a8204f9c4","name":"Marcus Antonio","registered_at":"2026-06-20T17:32:49Z","symbol":"NIM1668840","token_address":"0x226d72efb6bc9dae6706da4e76b607ed829e1d05","type":"artist","uuid":"bc9e5c69-0f66-4028-beed-07ec0daeb4a1"}
album: Trouble
  type: MusicAlbum
  date published: 2022-02-17
album: Rider (Explicit)
  type: MusicAlbum
  date published: 2022-04-08
album: Rider (Radio Version)
  type: MusicAlbum
  date published: 2022-04-08
album: One Shot (Clean)
  type: MusicAlbum
  date published: 2022-07-01