Sur Familia
type: MusicGroup
popularity: 4
followers: 34
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5304796359dd4b5214986ba0a538ea2132f04530a06b74238e79f38e0b421cb5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953947
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953947
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/21c26161-442a-44df-8823-9640a634a1ca.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/21c26161-442a-44df-8823-9640a634a1ca.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/21c26161-442a-44df-8823-9640a634a1ca
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:14:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5304796359dd4b5214986ba0a538ea2132f04530a06b74238e79f38e0b421cb5","name":"Sur Familia","registered_at":"2026-06-16T01:21:25Z","symbol":"NIM0892809","token_address":"0x4a4dc7eefb75a8886da99eb830863b7c9e16b1ea","type":"artist","uuid":"21c26161-442a-44df-8823-9640a634a1ca"}
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 0x5304796359dd4b5214986ba0a538ea2132f04530a06b74238e79f38e0b421cb5. Chain 2 (Bitcoin): anchored in block 953947 (2026-06-16T13:14:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/21c26161-442a-44df-8823-9640a634a1ca.json and https://artists.proofprofile.net/proofs/artist/21c26161-442a-44df-8823-9640a634a1ca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:14:26Z
  text: {"copyright_id":"0x5304796359dd4b5214986ba0a538ea2132f04530a06b74238e79f38e0b421cb5","name":"Sur Familia","registered_at":"2026-06-16T01:21:25Z","symbol":"NIM0892809","token_address":"0x4a4dc7eefb75a8886da99eb830863b7c9e16b1ea","type":"artist","uuid":"21c26161-442a-44df-8823-9640a634a1ca"}
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