昆 夏美
type: MusicGroup
genre: boogie-woogie
genre: enka
genre: kayokyoku
popularity: 4
followers: 28
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfe671b0ba53525a9b7b520b98d9b9a01b79041292fcb301aa3c8965aaf460a8c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953846
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953846
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/00f7fb7e-fd03-45be-8561-086e81873a9f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/00f7fb7e-fd03-45be-8561-086e81873a9f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/00f7fb7e-fd03-45be-8561-086e81873a9f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T22:48:34Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfe671b0ba53525a9b7b520b98d9b9a01b79041292fcb301aa3c8965aaf460a8c","name":"昆 夏美","registered_at":"2026-06-15T13:50:14Z","symbol":"NIM0727870","token_address":"0x31d8942d794a9c375da62fa1f9ae296213b76b75","type":"artist","uuid":"00f7fb7e-fd03-45be-8561-086e81873a9f"}
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 0xfe671b0ba53525a9b7b520b98d9b9a01b79041292fcb301aa3c8965aaf460a8c. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00f7fb7e-fd03-45be-8561-086e81873a9f.json and https://artists.proofprofile.net/proofs/artist/00f7fb7e-fd03-45be-8561-086e81873a9f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0xfe671b0ba53525a9b7b520b98d9b9a01b79041292fcb301aa3c8965aaf460a8c","name":"昆 夏美","registered_at":"2026-06-15T13:50:14Z","symbol":"NIM0727870","token_address":"0x31d8942d794a9c375da62fa1f9ae296213b76b75","type":"artist","uuid":"00f7fb7e-fd03-45be-8561-086e81873a9f"}