謝苅区青年会（歌・三線：松田弘一、松田一利）
type: MusicGroup
popularity: 5
followers: 56
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbd464b94b29eb2c2752954d5acf09e1e73c81eafd1d83539e2992634da8dff09
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/747f2b4f-766d-4b10-96da-06381f2b77a0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/747f2b4f-766d-4b10-96da-06381f2b77a0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/747f2b4f-766d-4b10-96da-06381f2b77a0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbd464b94b29eb2c2752954d5acf09e1e73c81eafd1d83539e2992634da8dff09","name":"謝苅区青年会（歌・三線：松田弘一、松田一利）","registered_at":"2026-06-17T06:17:21Z","symbol":"NIM1307115","token_address":"0x35d77a7a063bacbceb401c37db3a8f4bb758749b","type":"artist","uuid":"747f2b4f-766d-4b10-96da-06381f2b77a0"}
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 0xbd464b94b29eb2c2752954d5acf09e1e73c81eafd1d83539e2992634da8dff09. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/747f2b4f-766d-4b10-96da-06381f2b77a0.json and https://artists.proofprofile.net/proofs/artist/747f2b4f-766d-4b10-96da-06381f2b77a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xbd464b94b29eb2c2752954d5acf09e1e73c81eafd1d83539e2992634da8dff09","name":"謝苅区青年会（歌・三線：松田弘一、松田一利）","registered_at":"2026-06-17T06:17:21Z","symbol":"NIM1307115","token_address":"0x35d77a7a063bacbceb401c37db3a8f4bb758749b","type":"artist","uuid":"747f2b4f-766d-4b10-96da-06381f2b77a0"}