Yamada Yui (CV: Minami Takahashi)
type: MusicGroup
genre: anime
popularity: 10
followers: 591
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9418c7ee561b49a2cf550af0f068a2b8941a90cee5f1647dfcf36b8edb96ee25
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/aab2510e-ec3b-4c7f-aa72-5854b982e1d5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/aab2510e-ec3b-4c7f-aa72-5854b982e1d5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/aab2510e-ec3b-4c7f-aa72-5854b982e1d5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9418c7ee561b49a2cf550af0f068a2b8941a90cee5f1647dfcf36b8edb96ee25","name":"Yamada Yui (CV: Minami Takahashi)","registered_at":"2026-06-20T09:29:16Z","symbol":"NIM1578969","token_address":"0x9c92ba9c1e0dc0c086a681c1765cce04dc6683e4","type":"artist","uuid":"aab2510e-ec3b-4c7f-aa72-5854b982e1d5"}
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 0x9418c7ee561b49a2cf550af0f068a2b8941a90cee5f1647dfcf36b8edb96ee25. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aab2510e-ec3b-4c7f-aa72-5854b982e1d5.json and https://artists.proofprofile.net/proofs/artist/aab2510e-ec3b-4c7f-aa72-5854b982e1d5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0x9418c7ee561b49a2cf550af0f068a2b8941a90cee5f1647dfcf36b8edb96ee25","name":"Yamada Yui (CV: Minami Takahashi)","registered_at":"2026-06-20T09:29:16Z","symbol":"NIM1578969","token_address":"0x9c92ba9c1e0dc0c086a681c1765cce04dc6683e4","type":"artist","uuid":"aab2510e-ec3b-4c7f-aa72-5854b982e1d5"}
album: "Asagao to Kase-san." Theme Song "Asu e no Tobira"
  type: MusicAlbum
  date published: 2018-08-06
album: "Asagao to Kase-san." Cover Song & Audio Drama Album
  type: MusicAlbum
  date published: 2018-08-06