Saku Hiromi
type: MusicGroup
popularity: 34
followers: 33
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2a2dc3957e05f281c54087258545c1ebb824de8a5c8ff8843c243eb66872a869
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b1552219-6536-4119-88f9-5ea32510969f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b1552219-6536-4119-88f9-5ea32510969f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b1552219-6536-4119-88f9-5ea32510969f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2a2dc3957e05f281c54087258545c1ebb824de8a5c8ff8843c243eb66872a869","name":"Saku Hiromi","registered_at":"2026-06-12T07:29:06Z","symbol":"NIM0228453","token_address":"0x0e3e82c71c175489c2dc508776388f6568df5007","type":"artist","uuid":"b1552219-6536-4119-88f9-5ea32510969f"}
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 0x2a2dc3957e05f281c54087258545c1ebb824de8a5c8ff8843c243eb66872a869. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b1552219-6536-4119-88f9-5ea32510969f.json and https://artists.proofprofile.net/proofs/artist/b1552219-6536-4119-88f9-5ea32510969f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x2a2dc3957e05f281c54087258545c1ebb824de8a5c8ff8843c243eb66872a869","name":"Saku Hiromi","registered_at":"2026-06-12T07:29:06Z","symbol":"NIM0228453","token_address":"0x0e3e82c71c175489c2dc508776388f6568df5007","type":"artist","uuid":"b1552219-6536-4119-88f9-5ea32510969f"}
album: Kanji
  type: MusicAlbum
  date published: 2024-06-28
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  type: MusicAlbum
  date published: 2024-07-26
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  type: MusicAlbum
  date published: 2024-08-22
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  type: MusicAlbum
  date published: 2024-09-12
album: 孤独
  type: MusicAlbum
  date published: 2024-10-26
album: Suki desu ても
  type: MusicAlbum
  date published: 2025-01-16
album: 精神
  type: MusicAlbum
  date published: 2025-03-07
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  type: MusicAlbum
  date published: 2025-05-23
album: Kokoro–
  type: MusicAlbum
  date published: 2025-06-20