Zhang Meng
type: MusicGroup
popularity: 5
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb74ca8c4565315b4d40f0e87186f185d210ae0055ad7f7cfe2d1d0d62911f576
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953922
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953922
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1bf67d34-22a2-4774-94d1-2449d58cd531.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1bf67d34-22a2-4774-94d1-2449d58cd531.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1bf67d34-22a2-4774-94d1-2449d58cd531
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T09:36:34Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb74ca8c4565315b4d40f0e87186f185d210ae0055ad7f7cfe2d1d0d62911f576","name":"Zhang Meng","registered_at":"2026-06-15T23:18:56Z","symbol":"NIM0863570","token_address":"0x34b511acd55bb30bc0539caae2db7581b2537602","type":"artist","uuid":"1bf67d34-22a2-4774-94d1-2449d58cd531"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74ca8c4565315b4d40f0e87186f185d210ae0055ad7f7cfe2d1d0d62911f576. Chain 2 (Bitcoin): anchored in block 953922 (2026-06-16T09:36:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1bf67d34-22a2-4774-94d1-2449d58cd531.json and https://artists.proofprofile.net/proofs/artist/1bf67d34-22a2-4774-94d1-2449d58cd531.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T09:36:34Z
  text: {"copyright_id":"0xb74ca8c4565315b4d40f0e87186f185d210ae0055ad7f7cfe2d1d0d62911f576","name":"Zhang Meng","registered_at":"2026-06-15T23:18:56Z","symbol":"NIM0863570","token_address":"0x34b511acd55bb30bc0539caae2db7581b2537602","type":"artist","uuid":"1bf67d34-22a2-4774-94d1-2449d58cd531"}