サトウトモミ
type: MusicGroup
popularity: 5
followers: 108
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9b664ef59c640d4e483b180099d492d4b5eae14e9fcbd16ce731edf3045829cb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954131
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954131
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7dbac60f-0fd3-48fa-b350-98b22d5466bf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7dbac60f-0fd3-48fa-b350-98b22d5466bf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7dbac60f-0fd3-48fa-b350-98b22d5466bf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:19:19Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9b664ef59c640d4e483b180099d492d4b5eae14e9fcbd16ce731edf3045829cb","name":"サトウトモミ","registered_at":"2026-06-17T09:29:05Z","symbol":"NIM1352807","token_address":"0xf0e09b9bc5ed9281d76196478dd1b9fe29b49521","type":"artist","uuid":"7dbac60f-0fd3-48fa-b350-98b22d5466bf"}
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 0x9b664ef59c640d4e483b180099d492d4b5eae14e9fcbd16ce731edf3045829cb. Chain 2 (Bitcoin): anchored in block 954131 (2026-06-17T19:19:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7dbac60f-0fd3-48fa-b350-98b22d5466bf.json and https://artists.proofprofile.net/proofs/artist/7dbac60f-0fd3-48fa-b350-98b22d5466bf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:19:19Z
  text: {"copyright_id":"0x9b664ef59c640d4e483b180099d492d4b5eae14e9fcbd16ce731edf3045829cb","name":"サトウトモミ","registered_at":"2026-06-17T09:29:05Z","symbol":"NIM1352807","token_address":"0xf0e09b9bc5ed9281d76196478dd1b9fe29b49521","type":"artist","uuid":"7dbac60f-0fd3-48fa-b350-98b22d5466bf"}
album: Tokyo
  type: MusicAlbum
  date published: 2020-02-07
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  type: MusicAlbum
  date published: 2020-03-11
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  type: MusicAlbum
  date published: 2021-05-26
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  type: MusicAlbum
  date published: 2022-06-03
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  type: MusicAlbum
  date published: 2025-03-08
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  type: MusicAlbum
  date published: 2025-09-22