O Martim
type: MusicGroup
popularity: 2
followers: 1029
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xad41b27a19301273541d6e918a32acd66e69a96e555aa8a45647e6e74c949360
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f808cc61-370e-4841-83f3-7d363053efc7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f808cc61-370e-4841-83f3-7d363053efc7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f808cc61-370e-4841-83f3-7d363053efc7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xad41b27a19301273541d6e918a32acd66e69a96e555aa8a45647e6e74c949360","name":"O Martim","registered_at":"2026-06-21T16:09:33Z","symbol":"NIM1965426","token_address":"0x86454c0425d67f422630a483e4b46dd1bfdb3fe7","type":"artist","uuid":"f808cc61-370e-4841-83f3-7d363053efc7"}
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 0xad41b27a19301273541d6e918a32acd66e69a96e555aa8a45647e6e74c949360. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f808cc61-370e-4841-83f3-7d363053efc7.json and https://artists.proofprofile.net/proofs/artist/f808cc61-370e-4841-83f3-7d363053efc7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0xad41b27a19301273541d6e918a32acd66e69a96e555aa8a45647e6e74c949360","name":"O Martim","registered_at":"2026-06-21T16:09:33Z","symbol":"NIM1965426","token_address":"0x86454c0425d67f422630a483e4b46dd1bfdb3fe7","type":"artist","uuid":"f808cc61-370e-4841-83f3-7d363053efc7"}
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  type: MusicAlbum
  date published: 2013-02-04
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