The Surf Cats
type: MusicGroup
popularity: 5
followers: 11
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1ec21356e5a02a895dfb1c3995293fdcebfba3c9afbbc4b29320773a57caa4fc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a030bc09-109a-492a-aabc-74c2487be2ba.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a030bc09-109a-492a-aabc-74c2487be2ba.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a030bc09-109a-492a-aabc-74c2487be2ba
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1ec21356e5a02a895dfb1c3995293fdcebfba3c9afbbc4b29320773a57caa4fc","name":"The Surf Cats","registered_at":"2026-06-20T05:45:31Z","symbol":"NIM1529318","token_address":"0x39e8aa10ab75a87b3140ce3a6630df3efeb254c5","type":"artist","uuid":"a030bc09-109a-492a-aabc-74c2487be2ba"}
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 0x1ec21356e5a02a895dfb1c3995293fdcebfba3c9afbbc4b29320773a57caa4fc. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a030bc09-109a-492a-aabc-74c2487be2ba.json and https://artists.proofprofile.net/proofs/artist/a030bc09-109a-492a-aabc-74c2487be2ba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0x1ec21356e5a02a895dfb1c3995293fdcebfba3c9afbbc4b29320773a57caa4fc","name":"The Surf Cats","registered_at":"2026-06-20T05:45:31Z","symbol":"NIM1529318","token_address":"0x39e8aa10ab75a87b3140ce3a6630df3efeb254c5","type":"artist","uuid":"a030bc09-109a-492a-aabc-74c2487be2ba"}
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