Seen last week
type: MusicGroup
popularity: 4
followers: 55
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x20f63160a7eeae6bfd4c0371ea55b40b9346d7971ebd7b30fd8f7d910a68b137
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953911
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953911
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/180732b1-14fb-49ef-b397-4f037586f359.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/180732b1-14fb-49ef-b397-4f037586f359.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/180732b1-14fb-49ef-b397-4f037586f359
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T08:03:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x20f63160a7eeae6bfd4c0371ea55b40b9346d7971ebd7b30fd8f7d910a68b137","name":"Seen last week","registered_at":"2026-06-15T21:54:52Z","symbol":"NIM0843504","token_address":"0x1da55a5c208a5675e4781e94b430a6940b40b0cc","type":"artist","uuid":"180732b1-14fb-49ef-b397-4f037586f359"}
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 0x20f63160a7eeae6bfd4c0371ea55b40b9346d7971ebd7b30fd8f7d910a68b137. Chain 2 (Bitcoin): anchored in block 953911 (2026-06-16T08:03:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/180732b1-14fb-49ef-b397-4f037586f359.json and https://artists.proofprofile.net/proofs/artist/180732b1-14fb-49ef-b397-4f037586f359.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T08:03:10Z
  text: {"copyright_id":"0x20f63160a7eeae6bfd4c0371ea55b40b9346d7971ebd7b30fd8f7d910a68b137","name":"Seen last week","registered_at":"2026-06-15T21:54:52Z","symbol":"NIM0843504","token_address":"0x1da55a5c208a5675e4781e94b430a6940b40b0cc","type":"artist","uuid":"180732b1-14fb-49ef-b397-4f037586f359"}
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