Leonardo BDR
type: MusicGroup
popularity: 5
followers: 373
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x203eb80c78469e2821936da0e1808620a4c16bf83ed298c7ca37876d1c21027a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f5068c92-30e9-43a0-a13a-38f6e5265f7c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f5068c92-30e9-43a0-a13a-38f6e5265f7c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f5068c92-30e9-43a0-a13a-38f6e5265f7c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x203eb80c78469e2821936da0e1808620a4c16bf83ed298c7ca37876d1c21027a","name":"Leonardo BDR","registered_at":"2026-06-21T14:46:46Z","symbol":"NIM1950934","token_address":"0x31c712bf18a42814a477bece2197e3afcf692c9d","type":"artist","uuid":"f5068c92-30e9-43a0-a13a-38f6e5265f7c"}
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 0x203eb80c78469e2821936da0e1808620a4c16bf83ed298c7ca37876d1c21027a. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f5068c92-30e9-43a0-a13a-38f6e5265f7c.json and https://artists.proofprofile.net/proofs/artist/f5068c92-30e9-43a0-a13a-38f6e5265f7c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x203eb80c78469e2821936da0e1808620a4c16bf83ed298c7ca37876d1c21027a","name":"Leonardo BDR","registered_at":"2026-06-21T14:46:46Z","symbol":"NIM1950934","token_address":"0x31c712bf18a42814a477bece2197e3afcf692c9d","type":"artist","uuid":"f5068c92-30e9-43a0-a13a-38f6e5265f7c"}
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