たこちゃん
type: MusicGroup
popularity: 3
followers: 84
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3f0c22be42fb1685dc2ee16a32e55f2f001aa3b6bb784d7f149dc16231ec56c8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ff76b2d1-48bc-440a-8c43-39016d93ad26.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ff76b2d1-48bc-440a-8c43-39016d93ad26.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ff76b2d1-48bc-440a-8c43-39016d93ad26
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3f0c22be42fb1685dc2ee16a32e55f2f001aa3b6bb784d7f149dc16231ec56c8","name":"たこちゃん","registered_at":"2026-06-21T18:51:31Z","symbol":"NIM2004800","token_address":"0xadf521afb1c96181a71abb52a94f5ed77bb388b4","type":"artist","uuid":"ff76b2d1-48bc-440a-8c43-39016d93ad26"}
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 0x3f0c22be42fb1685dc2ee16a32e55f2f001aa3b6bb784d7f149dc16231ec56c8. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ff76b2d1-48bc-440a-8c43-39016d93ad26.json and https://artists.proofprofile.net/proofs/artist/ff76b2d1-48bc-440a-8c43-39016d93ad26.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x3f0c22be42fb1685dc2ee16a32e55f2f001aa3b6bb784d7f149dc16231ec56c8","name":"たこちゃん","registered_at":"2026-06-21T18:51:31Z","symbol":"NIM2004800","token_address":"0xadf521afb1c96181a71abb52a94f5ed77bb388b4","type":"artist","uuid":"ff76b2d1-48bc-440a-8c43-39016d93ad26"}