La Rotonda
type: MusicGroup
popularity: 36
followers: 97
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8584edef9b575c82f22ba6725d1d691966996df592c28c4a8a20295fee4a99e1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5c1f8c5f-ded6-4ad4-95e4-6403cd9aee8a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5c1f8c5f-ded6-4ad4-95e4-6403cd9aee8a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5c1f8c5f-ded6-4ad4-95e4-6403cd9aee8a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8584edef9b575c82f22ba6725d1d691966996df592c28c4a8a20295fee4a99e1","name":"La Rotonda","registered_at":"2026-06-11T21:39:04Z","symbol":"NIM0119709","token_address":"0x66c1c163af2d92aea931ee4a17e8ed0c47cf2f61","type":"artist","uuid":"5c1f8c5f-ded6-4ad4-95e4-6403cd9aee8a"}
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 0x8584edef9b575c82f22ba6725d1d691966996df592c28c4a8a20295fee4a99e1. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5c1f8c5f-ded6-4ad4-95e4-6403cd9aee8a.json and https://artists.proofprofile.net/proofs/artist/5c1f8c5f-ded6-4ad4-95e4-6403cd9aee8a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0x8584edef9b575c82f22ba6725d1d691966996df592c28c4a8a20295fee4a99e1","name":"La Rotonda","registered_at":"2026-06-11T21:39:04Z","symbol":"NIM0119709","token_address":"0x66c1c163af2d92aea931ee4a17e8ed0c47cf2f61","type":"artist","uuid":"5c1f8c5f-ded6-4ad4-95e4-6403cd9aee8a"}
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