Second Hand Dan
type: MusicGroup
popularity: 2
followers: 126
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdea154b0b8ac3073fde4b0abe85747d4a05244046f96fadfcefe3d783da1e508
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953899
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953899
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/11b22241-d91f-446d-92e2-73ad52c49fdf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/11b22241-d91f-446d-92e2-73ad52c49fdf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/11b22241-d91f-446d-92e2-73ad52c49fdf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:37:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdea154b0b8ac3073fde4b0abe85747d4a05244046f96fadfcefe3d783da1e508","name":"Second Hand Dan","registered_at":"2026-06-15T19:38:36Z","symbol":"NIM0811020","token_address":"0x59769d1407fd5152f109f1d0496e8f55c8b9fa12","type":"artist","uuid":"11b22241-d91f-446d-92e2-73ad52c49fdf"}
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 0xdea154b0b8ac3073fde4b0abe85747d4a05244046f96fadfcefe3d783da1e508. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/11b22241-d91f-446d-92e2-73ad52c49fdf.json and https://artists.proofprofile.net/proofs/artist/11b22241-d91f-446d-92e2-73ad52c49fdf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0xdea154b0b8ac3073fde4b0abe85747d4a05244046f96fadfcefe3d783da1e508","name":"Second Hand Dan","registered_at":"2026-06-15T19:38:36Z","symbol":"NIM0811020","token_address":"0x59769d1407fd5152f109f1d0496e8f55c8b9fa12","type":"artist","uuid":"11b22241-d91f-446d-92e2-73ad52c49fdf"}
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