Sin Comillas
type: MusicGroup
genre: ska
popularity: 18
followers: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfe87e335cdb076045c438a0109962da518a796c91f608d77c0d72458a2a21801
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953759
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953759
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b7aaa343-7006-48ac-aed5-332d4ac97e2a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b7aaa343-7006-48ac-aed5-332d4ac97e2a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b7aaa343-7006-48ac-aed5-332d4ac97e2a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T08:04:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfe87e335cdb076045c438a0109962da518a796c91f608d77c0d72458a2a21801","name":"Sin Comillas","registered_at":"2026-06-14T23:46:33Z","symbol":"NIM0614762","token_address":"0x3e35819e31a591b9eb1a8b359a7a3fc7caaca675","type":"artist","uuid":"b7aaa343-7006-48ac-aed5-332d4ac97e2a"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe87e335cdb076045c438a0109962da518a796c91f608d77c0d72458a2a21801. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b7aaa343-7006-48ac-aed5-332d4ac97e2a.json and https://artists.proofprofile.net/proofs/artist/b7aaa343-7006-48ac-aed5-332d4ac97e2a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T08:04:42Z
  text: {"copyright_id":"0xfe87e335cdb076045c438a0109962da518a796c91f608d77c0d72458a2a21801","name":"Sin Comillas","registered_at":"2026-06-14T23:46:33Z","symbol":"NIM0614762","token_address":"0x3e35819e31a591b9eb1a8b359a7a3fc7caaca675","type":"artist","uuid":"b7aaa343-7006-48ac-aed5-332d4ac97e2a"}
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