David Herman
type: MusicGroup
description: David Herman (born February 20, 1967) is an American actor and comedian. He was an original cast member on MADtv from 1995 to 1997 and played Michael Bolton in Office Space. He has done voice-over wo
popularity: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb0b42a54c46fe875ccb7c2f66bf5d370124dfe27567d93bf4b9edda0f563c7d9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954615
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954615
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c676e8a8-83d1-4347-bb7d-3437d2094e32.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c676e8a8-83d1-4347-bb7d-3437d2094e32.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c676e8a8-83d1-4347-bb7d-3437d2094e32
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T22:44:50Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb0b42a54c46fe875ccb7c2f66bf5d370124dfe27567d93bf4b9edda0f563c7d9","name":"David Herman","registered_at":"2026-06-20T21:20:24Z","symbol":"NIM1718569","token_address":"0x0ffcdc7b47325a2a37f86b79b924b0a314a4f3ae","type":"artist","uuid":"c676e8a8-83d1-4347-bb7d-3437d2094e32"}
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 0xb0b42a54c46fe875ccb7c2f66bf5d370124dfe27567d93bf4b9edda0f563c7d9. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c676e8a8-83d1-4347-bb7d-3437d2094e32.json and https://artists.proofprofile.net/proofs/artist/c676e8a8-83d1-4347-bb7d-3437d2094e32.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T22:44:50Z
  text: {"copyright_id":"0xb0b42a54c46fe875ccb7c2f66bf5d370124dfe27567d93bf4b9edda0f563c7d9","name":"David Herman","registered_at":"2026-06-20T21:20:24Z","symbol":"NIM1718569","token_address":"0x0ffcdc7b47325a2a37f86b79b924b0a314a4f3ae","type":"artist","uuid":"c676e8a8-83d1-4347-bb7d-3437d2094e32"}