木下ゆみ
type: MusicGroup
popularity: 15
followers: 141
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb15447e2925cec5f17d5e84ca6d6ff7a6d150c8720d01ed29a37143d5a5b33fa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953710
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953710
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7f6a6fef-347a-437d-8d19-0c628f1d5b13.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7f6a6fef-347a-437d-8d19-0c628f1d5b13.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7f6a6fef-347a-437d-8d19-0c628f1d5b13
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T23:32:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb15447e2925cec5f17d5e84ca6d6ff7a6d150c8720d01ed29a37143d5a5b33fa","name":"木下ゆみ","registered_at":"2026-06-14T17:52:00Z","symbol":"NIM0530225","token_address":"0xd6af4714a5f80ce260ed8377239802cdaa8425fa","type":"artist","uuid":"7f6a6fef-347a-437d-8d19-0c628f1d5b13"}
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 0xb15447e2925cec5f17d5e84ca6d6ff7a6d150c8720d01ed29a37143d5a5b33fa. Chain 2 (Bitcoin): anchored in block 953710 (2026-06-14T23:32:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7f6a6fef-347a-437d-8d19-0c628f1d5b13.json and https://artists.proofprofile.net/proofs/artist/7f6a6fef-347a-437d-8d19-0c628f1d5b13.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T23:32:42Z
  text: {"copyright_id":"0xb15447e2925cec5f17d5e84ca6d6ff7a6d150c8720d01ed29a37143d5a5b33fa","name":"木下ゆみ","registered_at":"2026-06-14T17:52:00Z","symbol":"NIM0530225","token_address":"0xd6af4714a5f80ce260ed8377239802cdaa8425fa","type":"artist","uuid":"7f6a6fef-347a-437d-8d19-0c628f1d5b13"}