あたまたんさん
type: MusicGroup
popularity: 2
followers: 180
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfedfa1ff3b66aa31bf797bb28b3cb1420b7784efaf0a7769f8ec955f9803de06
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953889
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953889
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0db8d7de-374b-4c6e-bf87-c761545248e9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0db8d7de-374b-4c6e-bf87-c761545248e9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0db8d7de-374b-4c6e-bf87-c761545248e9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T04:57:45Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfedfa1ff3b66aa31bf797bb28b3cb1420b7784efaf0a7769f8ec955f9803de06","name":"あたまたんさん","registered_at":"2026-06-15T18:31:48Z","symbol":"NIM0795072","token_address":"0x6e90c58f9000c7d334d0ce9703e354708ecac3aa","type":"artist","uuid":"0db8d7de-374b-4c6e-bf87-c761545248e9"}
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 0xfedfa1ff3b66aa31bf797bb28b3cb1420b7784efaf0a7769f8ec955f9803de06. Chain 2 (Bitcoin): anchored in block 953889 (2026-06-16T04:57:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0db8d7de-374b-4c6e-bf87-c761545248e9.json and https://artists.proofprofile.net/proofs/artist/0db8d7de-374b-4c6e-bf87-c761545248e9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T04:57:45Z
  text: {"copyright_id":"0xfedfa1ff3b66aa31bf797bb28b3cb1420b7784efaf0a7769f8ec955f9803de06","name":"あたまたんさん","registered_at":"2026-06-15T18:31:48Z","symbol":"NIM0795072","token_address":"0x6e90c58f9000c7d334d0ce9703e354708ecac3aa","type":"artist","uuid":"0db8d7de-374b-4c6e-bf87-c761545248e9"}
album: ゆっくり
  type: MusicAlbum
  date published: 2024-03-01
album: 旅は危ない
  type: MusicAlbum
  date published: 2024-12-01
album: 鉄の掟
  type: MusicAlbum
  date published: 2025-02-15