hiroto kei
type: MusicGroup
popularity: 6
followers: 471
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x70127034c9fab0357dbb9dab1ffeccdb2da12b928a4b328b54276498c7614b4b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6d358f2a-e725-437b-a5b1-042febf2324e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6d358f2a-e725-437b-a5b1-042febf2324e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6d358f2a-e725-437b-a5b1-042febf2324e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x70127034c9fab0357dbb9dab1ffeccdb2da12b928a4b328b54276498c7614b4b","name":"hiroto kei","registered_at":"2026-06-17T03:41:37Z","symbol":"NIM1269944","token_address":"0x76953e2ac57b9cb9b8d6b74f437fc84a36df34f9","type":"artist","uuid":"6d358f2a-e725-437b-a5b1-042febf2324e"}
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 0x70127034c9fab0357dbb9dab1ffeccdb2da12b928a4b328b54276498c7614b4b. 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/6d358f2a-e725-437b-a5b1-042febf2324e.json and https://artists.proofprofile.net/proofs/artist/6d358f2a-e725-437b-a5b1-042febf2324e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x70127034c9fab0357dbb9dab1ffeccdb2da12b928a4b328b54276498c7614b4b","name":"hiroto kei","registered_at":"2026-06-17T03:41:37Z","symbol":"NIM1269944","token_address":"0x76953e2ac57b9cb9b8d6b74f437fc84a36df34f9","type":"artist","uuid":"6d358f2a-e725-437b-a5b1-042febf2324e"}
album: GBA Plastic
  type: MusicAlbum
  date published: 2022-05-17
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  date published: 2022-08-12
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  type: MusicAlbum
  date published: 2022-09-19
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  date published: 2022-12-16
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  type: MusicAlbum
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  date published: 2023-09-01
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  date published: 2023-11-01
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  type: MusicAlbum
  date published: 2024-02-07
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  date published: 2024-03-13
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  type: MusicAlbum
  date published: 2024-03-13
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  type: MusicAlbum
  date published: 2024-05-15
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  type: MusicAlbum
  date published: 2024-07-03
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  type: MusicAlbum
  date published: 2024-10-02
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  type: MusicAlbum
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  type: MusicAlbum
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