たまこぅ
type: MusicGroup
genre: j-rap
popularity: 3
followers: 30
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5b2966494b04a38ff4476a723d93a2d1f3ee36a27ebe4910d32efd8821f8c824
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954031
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954031
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3a9b6aa0-8d37-456d-ae04-94a8349cdecd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3a9b6aa0-8d37-456d-ae04-94a8349cdecd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3a9b6aa0-8d37-456d-ae04-94a8349cdecd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T01:43:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5b2966494b04a38ff4476a723d93a2d1f3ee36a27ebe4910d32efd8821f8c824","name":"たまこぅ","registered_at":"2026-06-16T09:58:57Z","symbol":"NIM1016405","token_address":"0xef35adea5f7e5ed120cd5e89be69202a396045c2","type":"artist","uuid":"3a9b6aa0-8d37-456d-ae04-94a8349cdecd"}
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 0x5b2966494b04a38ff4476a723d93a2d1f3ee36a27ebe4910d32efd8821f8c824. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3a9b6aa0-8d37-456d-ae04-94a8349cdecd.json and https://artists.proofprofile.net/proofs/artist/3a9b6aa0-8d37-456d-ae04-94a8349cdecd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x5b2966494b04a38ff4476a723d93a2d1f3ee36a27ebe4910d32efd8821f8c824","name":"たまこぅ","registered_at":"2026-06-16T09:58:57Z","symbol":"NIM1016405","token_address":"0xef35adea5f7e5ed120cd5e89be69202a396045c2","type":"artist","uuid":"3a9b6aa0-8d37-456d-ae04-94a8349cdecd"}