Leo Franco
type: MusicGroup
description: Leonardo "Leo" Neoren Franco (born 20 May 1977) is an Argentine former professional footballer who played as a goalkeeper. After starting out at Independiente in 1995, he went on to spend the vast ma
popularity: 8
followers: 48
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x903f8dc82b420735c9921602d74f7c0d8f199f1833ad2d5fd84b4c8594790486
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954638
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954638
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d3ef4e06-9799-4912-9902-cb0c173e006e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d3ef4e06-9799-4912-9902-cb0c173e006e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d3ef4e06-9799-4912-9902-cb0c173e006e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T03:45:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x903f8dc82b420735c9921602d74f7c0d8f199f1833ad2d5fd84b4c8594790486","name":"Leo Franco","registered_at":"2026-06-21T01:53:21Z","symbol":"NIM1782301","token_address":"0xf453dd98a81562e01345558271d5e23927fb8d08","type":"artist","uuid":"d3ef4e06-9799-4912-9902-cb0c173e006e"}
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 0x903f8dc82b420735c9921602d74f7c0d8f199f1833ad2d5fd84b4c8594790486. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d3ef4e06-9799-4912-9902-cb0c173e006e.json and https://artists.proofprofile.net/proofs/artist/d3ef4e06-9799-4912-9902-cb0c173e006e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T03:45:44Z
  text: {"copyright_id":"0x903f8dc82b420735c9921602d74f7c0d8f199f1833ad2d5fd84b4c8594790486","name":"Leo Franco","registered_at":"2026-06-21T01:53:21Z","symbol":"NIM1782301","token_address":"0xf453dd98a81562e01345558271d5e23927fb8d08","type":"artist","uuid":"d3ef4e06-9799-4912-9902-cb0c173e006e"}
album: Pa Que Lo Goce
  type: MusicAlbum
  date published: 2023-01-15
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  date published: 2023-01-18
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  type: MusicAlbum
  date published: 2025-02-10