西田あい
type: MusicGroup
genre: enka
genre: kayokyoku
popularity: 2
followers: 348
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc9fb34b94aee38c9527e7019c2ed958fb8e4eb1774a346f9079b269115b6207d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/56037ca4-2b8d-4983-b896-e2a5a5e05e71.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/56037ca4-2b8d-4983-b896-e2a5a5e05e71.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/56037ca4-2b8d-4983-b896-e2a5a5e05e71
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc9fb34b94aee38c9527e7019c2ed958fb8e4eb1774a346f9079b269115b6207d","name":"西田あい","registered_at":"2026-06-16T19:39:57Z","symbol":"NIM1155019","token_address":"0xba592742676cc9f55ded03614a33f83196f2e4ed","type":"artist","uuid":"56037ca4-2b8d-4983-b896-e2a5a5e05e71"}
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 0xc9fb34b94aee38c9527e7019c2ed958fb8e4eb1774a346f9079b269115b6207d. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/56037ca4-2b8d-4983-b896-e2a5a5e05e71.json and https://artists.proofprofile.net/proofs/artist/56037ca4-2b8d-4983-b896-e2a5a5e05e71.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xc9fb34b94aee38c9527e7019c2ed958fb8e4eb1774a346f9079b269115b6207d","name":"西田あい","registered_at":"2026-06-16T19:39:57Z","symbol":"NIM1155019","token_address":"0xba592742676cc9f55ded03614a33f83196f2e4ed","type":"artist","uuid":"56037ca4-2b8d-4983-b896-e2a5a5e05e71"}
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  type: MusicAlbum
  date published: 2019-12-04
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  type: MusicAlbum
  date published: 2020-03-04
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  type: MusicAlbum
  date published: 2020-03-04
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  type: MusicAlbum
  date published: 2021-02-10
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  type: MusicAlbum
  date published: 2021-03-03
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  type: MusicAlbum
  date published: 2021-07-21
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  type: MusicAlbum
  date published: 2021-08-04