Mateus Pessanha
type: MusicGroup
popularity: 4
followers: 136
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe9b2b7f9a6710884609eb5be2e750bf58a2c1fb1084843157989b204d62b59b8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954569
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954569
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b2f891d1-dc02-42b8-a89d-c3492bc1bb13.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b2f891d1-dc02-42b8-a89d-c3492bc1bb13.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b2f891d1-dc02-42b8-a89d-c3492bc1bb13
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T14:36:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe9b2b7f9a6710884609eb5be2e750bf58a2c1fb1084843157989b204d62b59b8","name":"Mateus Pessanha","registered_at":"2026-06-20T12:54:34Z","symbol":"NIM1616885","token_address":"0xa6d43c2ad4e0b40563cc8dfeab1a68aaf40860b4","type":"artist","uuid":"b2f891d1-dc02-42b8-a89d-c3492bc1bb13"}
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 0xe9b2b7f9a6710884609eb5be2e750bf58a2c1fb1084843157989b204d62b59b8. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b2f891d1-dc02-42b8-a89d-c3492bc1bb13.json and https://artists.proofprofile.net/proofs/artist/b2f891d1-dc02-42b8-a89d-c3492bc1bb13.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T14:36:29Z
  text: {"copyright_id":"0xe9b2b7f9a6710884609eb5be2e750bf58a2c1fb1084843157989b204d62b59b8","name":"Mateus Pessanha","registered_at":"2026-06-20T12:54:34Z","symbol":"NIM1616885","token_address":"0xa6d43c2ad4e0b40563cc8dfeab1a68aaf40860b4","type":"artist","uuid":"b2f891d1-dc02-42b8-a89d-c3492bc1bb13"}
album: Waimea
  type: MusicAlbum
  date published: 2020-03-19
album: Pipeline
  type: MusicAlbum
  date published: 2020-06-05
album: Daily Soundtracks Lofi
  type: MusicAlbum
  date published: 2024-05-10
album: Daily Soundtracks Cinematic
  type: MusicAlbum
  date published: 2024-05-24