Franco Leão
type: MusicGroup
popularity: 2
followers: 77
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd357917acaf7bdf1fbe5a2998e8a9ef61359fc6e89455848795b16b9e71b99b7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954063
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954063
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/47d7fb1e-aad9-4832-8b38-2dd555d1ff9e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/47d7fb1e-aad9-4832-8b38-2dd555d1ff9e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/47d7fb1e-aad9-4832-8b38-2dd555d1ff9e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T07:49:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd357917acaf7bdf1fbe5a2998e8a9ef61359fc6e89455848795b16b9e71b99b7","name":"Franco Leão","registered_at":"2026-06-16T14:35:18Z","symbol":"NIM1082326","token_address":"0xb98a7d2f2ea102758ca486260f9b668fd5b6a7f5","type":"artist","uuid":"47d7fb1e-aad9-4832-8b38-2dd555d1ff9e"}
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 0xd357917acaf7bdf1fbe5a2998e8a9ef61359fc6e89455848795b16b9e71b99b7. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/47d7fb1e-aad9-4832-8b38-2dd555d1ff9e.json and https://artists.proofprofile.net/proofs/artist/47d7fb1e-aad9-4832-8b38-2dd555d1ff9e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xd357917acaf7bdf1fbe5a2998e8a9ef61359fc6e89455848795b16b9e71b99b7","name":"Franco Leão","registered_at":"2026-06-16T14:35:18Z","symbol":"NIM1082326","token_address":"0xb98a7d2f2ea102758ca486260f9b668fd5b6a7f5","type":"artist","uuid":"47d7fb1e-aad9-4832-8b38-2dd555d1ff9e"}
album: Olho D'água
  type: MusicAlbum
  date published: 2023-09-21
album: Aldeia do Coração
  type: MusicAlbum
  date published: 2024-03-19
album: A los Apus
  type: MusicAlbum
  date published: 2024-11-11