手がクリームパン
type: MusicGroup
popularity: 9
followers: 3340
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x70909112ad6a3e7f954066bbf1c854d36aac7c4af5c187279d5d26d3e6d3de4a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954659
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954659
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dc4a17fc-45ee-4a84-b811-703545faf2bf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dc4a17fc-45ee-4a84-b811-703545faf2bf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dc4a17fc-45ee-4a84-b811-703545faf2bf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T06:14:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x70909112ad6a3e7f954066bbf1c854d36aac7c4af5c187279d5d26d3e6d3de4a","name":"手がクリームパン","registered_at":"2026-06-21T04:46:49Z","symbol":"NIM1824138","token_address":"0x84d9478abdaf4d67e6793c906f15a820d819215d","type":"artist","uuid":"dc4a17fc-45ee-4a84-b811-703545faf2bf"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70909112ad6a3e7f954066bbf1c854d36aac7c4af5c187279d5d26d3e6d3de4a. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dc4a17fc-45ee-4a84-b811-703545faf2bf.json and https://artists.proofprofile.net/proofs/artist/dc4a17fc-45ee-4a84-b811-703545faf2bf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T06:14:42Z
  text: {"copyright_id":"0x70909112ad6a3e7f954066bbf1c854d36aac7c4af5c187279d5d26d3e6d3de4a","name":"手がクリームパン","registered_at":"2026-06-21T04:46:49Z","symbol":"NIM1824138","token_address":"0x84d9478abdaf4d67e6793c906f15a820d819215d","type":"artist","uuid":"dc4a17fc-45ee-4a84-b811-703545faf2bf"}
album: 弱虫のち晴れ
  type: MusicAlbum
  date published: 2022-08-03