いずれ菖蒲か杜若
type: MusicGroup
popularity: 31
followers: 3200
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeb0546069a1942c065b602fb74b5217a1dda66b5e50420ad700612c17875cce0
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/b12888aa-3f96-478e-a788-c121d679974c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b12888aa-3f96-478e-a788-c121d679974c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b12888aa-3f96-478e-a788-c121d679974c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xeb0546069a1942c065b602fb74b5217a1dda66b5e50420ad700612c17875cce0","name":"いずれ菖蒲か杜若","registered_at":"2026-06-12T07:30:11Z","symbol":"NIM0228710","token_address":"0xa40a7e5ccf9ff2641e5dd767d380495d74603ab3","type":"artist","uuid":"b12888aa-3f96-478e-a788-c121d679974c"}
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 0xeb0546069a1942c065b602fb74b5217a1dda66b5e50420ad700612c17875cce0. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b12888aa-3f96-478e-a788-c121d679974c.json and https://artists.proofprofile.net/proofs/artist/b12888aa-3f96-478e-a788-c121d679974c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0xeb0546069a1942c065b602fb74b5217a1dda66b5e50420ad700612c17875cce0","name":"いずれ菖蒲か杜若","registered_at":"2026-06-12T07:30:11Z","symbol":"NIM0228710","token_address":"0xa40a7e5ccf9ff2641e5dd767d380495d74603ab3","type":"artist","uuid":"b12888aa-3f96-478e-a788-c121d679974c"}
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  type: MusicAlbum
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