Asuka Eiko
type: MusicGroup
popularity: 13
followers: 164
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe33316eec2e8974c70fec32657ad3acb7c846ec782bb72262b70607860f7c372
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953695
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953695
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/73575f38-359a-42bd-937d-3033143d4acf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/73575f38-359a-42bd-937d-3033143d4acf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/73575f38-359a-42bd-937d-3033143d4acf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T21:42:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe33316eec2e8974c70fec32657ad3acb7c846ec782bb72262b70607860f7c372","name":"Asuka Eiko","registered_at":"2026-06-14T16:31:35Z","symbol":"NIM0511039","token_address":"0xbc852a59c47b8b218b5c6e972e5a881b957755d0","type":"artist","uuid":"73575f38-359a-42bd-937d-3033143d4acf"}
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 0xe33316eec2e8974c70fec32657ad3acb7c846ec782bb72262b70607860f7c372. Chain 2 (Bitcoin): anchored in block 953695 (2026-06-14T21:42:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/73575f38-359a-42bd-937d-3033143d4acf.json and https://artists.proofprofile.net/proofs/artist/73575f38-359a-42bd-937d-3033143d4acf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:42:01Z
  text: {"copyright_id":"0xe33316eec2e8974c70fec32657ad3acb7c846ec782bb72262b70607860f7c372","name":"Asuka Eiko","registered_at":"2026-06-14T16:31:35Z","symbol":"NIM0511039","token_address":"0xbc852a59c47b8b218b5c6e972e5a881b957755d0","type":"artist","uuid":"73575f38-359a-42bd-937d-3033143d4acf"}
album: Cherry Trees 桜
  type: MusicAlbum
  date published: 2019-04-26
album: Klisma
  type: MusicAlbum
  date published: 2023-05-19
album: Than Black
  type: MusicAlbum
  date published: 2024-01-12