Paulo de Freitas Mendonça
type: MusicGroup
popularity: 2
followers: 58
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4501c473f86c2d9b4f93fa60abbd201e46af381316d5ca6ca0d795617fe29310
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954647
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954647
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d609fd7c-2813-47bb-a3be-7de7f51f8f05.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d609fd7c-2813-47bb-a3be-7de7f51f8f05.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d609fd7c-2813-47bb-a3be-7de7f51f8f05
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:36:58Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4501c473f86c2d9b4f93fa60abbd201e46af381316d5ca6ca0d795617fe29310","name":"Paulo de Freitas Mendonça","registered_at":"2026-06-21T02:48:10Z","symbol":"NIM1796582","token_address":"0xe86f4e885d5e39d7997fd04f704e952b317a09c7","type":"artist","uuid":"d609fd7c-2813-47bb-a3be-7de7f51f8f05"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4501c473f86c2d9b4f93fa60abbd201e46af381316d5ca6ca0d795617fe29310. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d609fd7c-2813-47bb-a3be-7de7f51f8f05.json and https://artists.proofprofile.net/proofs/artist/d609fd7c-2813-47bb-a3be-7de7f51f8f05.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:36:58Z
  text: {"copyright_id":"0x4501c473f86c2d9b4f93fa60abbd201e46af381316d5ca6ca0d795617fe29310","name":"Paulo de Freitas Mendonça","registered_at":"2026-06-21T02:48:10Z","symbol":"NIM1796582","token_address":"0xe86f4e885d5e39d7997fd04f704e952b317a09c7","type":"artist","uuid":"d609fd7c-2813-47bb-a3be-7de7f51f8f05"}