倉沢淳美
type: MusicGroup
genre: city pop
genre: enka
genre: kayokyoku
popularity: 7
followers: 880
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6300391fe545e6e7a847b58520cd47edcafa5ab193eea01dfc1ff2469c893e8b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954638
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954638
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d32c189e-cf5b-4464-9edd-d4d3e46bab17.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d32c189e-cf5b-4464-9edd-d4d3e46bab17.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d32c189e-cf5b-4464-9edd-d4d3e46bab17
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T03:45:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6300391fe545e6e7a847b58520cd47edcafa5ab193eea01dfc1ff2469c893e8b","name":"倉沢淳美","registered_at":"2026-06-21T01:37:21Z","symbol":"NIM1778448","token_address":"0xef753e6fde273efe9c7f96005236f3f0a8d690c8","type":"artist","uuid":"d32c189e-cf5b-4464-9edd-d4d3e46bab17"}
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 0x6300391fe545e6e7a847b58520cd47edcafa5ab193eea01dfc1ff2469c893e8b. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d32c189e-cf5b-4464-9edd-d4d3e46bab17.json and https://artists.proofprofile.net/proofs/artist/d32c189e-cf5b-4464-9edd-d4d3e46bab17.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T03:45:44Z
  text: {"copyright_id":"0x6300391fe545e6e7a847b58520cd47edcafa5ab193eea01dfc1ff2469c893e8b","name":"倉沢淳美","registered_at":"2026-06-21T01:37:21Z","symbol":"NIM1778448","token_address":"0xef753e6fde273efe9c7f96005236f3f0a8d690c8","type":"artist","uuid":"d32c189e-cf5b-4464-9edd-d4d3e46bab17"}
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  type: MusicAlbum
  date published: 1984-03-21
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  type: MusicAlbum
  date published: 1984-05-23
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  date published: 1984-10-25
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  type: MusicAlbum
  date published: 1985-02-14
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  type: MusicAlbum
  date published: 1985-03-25
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  date published: 1985-09-25
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