きたやまおさむ & D50ShadowZ
type: MusicGroup
genre: enka
genre: kayokyoku
popularity: 3
followers: 308
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa237935ac96870e2fdbd3ef599175fa6a14578b2745266ad56e0166cc8fe3830
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954032
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954032
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3bc86012-5352-4500-b58e-04356c0a1c7f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3bc86012-5352-4500-b58e-04356c0a1c7f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3bc86012-5352-4500-b58e-04356c0a1c7f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T01:59:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa237935ac96870e2fdbd3ef599175fa6a14578b2745266ad56e0166cc8fe3830","name":"きたやまおさむ & D50ShadowZ","registered_at":"2026-06-16T10:24:41Z","symbol":"NIM1022555","token_address":"0x52f6a388f7ec527fc3889c4fd89c06d01bb48af4","type":"artist","uuid":"3bc86012-5352-4500-b58e-04356c0a1c7f"}
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 0xa237935ac96870e2fdbd3ef599175fa6a14578b2745266ad56e0166cc8fe3830. Chain 2 (Bitcoin): anchored in block 954032 (2026-06-17T01:59:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3bc86012-5352-4500-b58e-04356c0a1c7f.json and https://artists.proofprofile.net/proofs/artist/3bc86012-5352-4500-b58e-04356c0a1c7f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T01:59:41Z
  text: {"copyright_id":"0xa237935ac96870e2fdbd3ef599175fa6a14578b2745266ad56e0166cc8fe3830","name":"きたやまおさむ & D50ShadowZ","registered_at":"2026-06-16T10:24:41Z","symbol":"NIM1022555","token_address":"0x52f6a388f7ec527fc3889c4fd89c06d01bb48af4","type":"artist","uuid":"3bc86012-5352-4500-b58e-04356c0a1c7f"}
album: あの素晴しい愛をもう一度
  type: MusicAlbum
  date published: 2011-06-15
album: あの素晴しい愛をもう一度
  type: MusicAlbum
  date published: 2011-06-15