aMatsuka
type: MusicGroup
popularity: 4
followers: 293
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x92560e7eea2fc40216b394a7f279ae88c694db1b4e08cdbdfcab5e156c4faba3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954058
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954058
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/45b10977-e3c2-46df-b0b3-b4eaeae955c3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/45b10977-e3c2-46df-b0b3-b4eaeae955c3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/45b10977-e3c2-46df-b0b3-b4eaeae955c3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T06:34:31Z
additional property: OTSCanonicalRecord
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 0x92560e7eea2fc40216b394a7f279ae88c694db1b4e08cdbdfcab5e156c4faba3. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/45b10977-e3c2-46df-b0b3-b4eaeae955c3.json and https://artists.proofprofile.net/proofs/artist/45b10977-e3c2-46df-b0b3-b4eaeae955c3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
album: 僕と雲隠れ
  type: MusicAlbum
  date published: 2021-03-20
album: bokuto kumogakure
  type: MusicAlbum
  date published: 2021-03-20
album: expired children
  type: MusicAlbum
  date published: 2021-09-24
album: 消費期限切れチルドレン
  type: MusicAlbum
  date published: 2021-09-24
album: シュシュシュッ！シャコパンチ！
  type: MusicAlbum
  date published: 2021-12-11
album: アイコガレラブランナー
  type: MusicAlbum
  date published: 2022-07-24
album: Aikofgare LoveRunner
  type: MusicAlbum
  date published: 2022-07-24
album: Hello, Wonderland
  type: MusicAlbum
  date published: 2023-03-23