冴木はじめ
type: MusicGroup
popularity: 2
followers: 30
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2b10a7f4c4153f07f0ae899409a6acc18d443353db56913ed878e0c1e928ee3d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953949
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953949
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/20d28ff6-1270-404c-bbf2-b4f21c28c242.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/20d28ff6-1270-404c-bbf2-b4f21c28c242.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/20d28ff6-1270-404c-bbf2-b4f21c28c242
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:28:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2b10a7f4c4153f07f0ae899409a6acc18d443353db56913ed878e0c1e928ee3d","name":"冴木はじめ","registered_at":"2026-06-16T00:59:41Z","symbol":"NIM0887613","token_address":"0x63d537240ba685afc14f06ee3d22aa373d3ffba6","type":"artist","uuid":"20d28ff6-1270-404c-bbf2-b4f21c28c242"}
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 0x2b10a7f4c4153f07f0ae899409a6acc18d443353db56913ed878e0c1e928ee3d. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/20d28ff6-1270-404c-bbf2-b4f21c28c242.json and https://artists.proofprofile.net/proofs/artist/20d28ff6-1270-404c-bbf2-b4f21c28c242.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x2b10a7f4c4153f07f0ae899409a6acc18d443353db56913ed878e0c1e928ee3d","name":"冴木はじめ","registered_at":"2026-06-16T00:59:41Z","symbol":"NIM0887613","token_address":"0x63d537240ba685afc14f06ee3d22aa373d3ffba6","type":"artist","uuid":"20d28ff6-1270-404c-bbf2-b4f21c28c242"}
album: ハカタ・キッド (feat.MEIKO,KAITO,初音ミク)
  type: MusicAlbum
  date published: 2024-11-26
album: 山口慕情 (feat.MEIKO、初音ミク)
  type: MusicAlbum
  date published: 2025-01-05