Herb McGruff
type: MusicGroup
description: REDIRECT Children of the Corn (group)
popularity: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xad1abf83839f1a3e04b9f1294f28715366f0eb11392eeec8b3f257c58a6cb68d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954017
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954017
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/37462720-f828-46f6-ba33-b8eae11316ff.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/37462720-f828-46f6-ba33-b8eae11316ff.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/37462720-f828-46f6-ba33-b8eae11316ff
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T23:38:33Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xad1abf83839f1a3e04b9f1294f28715366f0eb11392eeec8b3f257c58a6cb68d","name":"Herb McGruff","registered_at":"2026-06-16T08:46:35Z","symbol":"NIM0999137","token_address":"0xdb29c42f5b4702626bb9e298b11c0c9261d44552","type":"artist","uuid":"37462720-f828-46f6-ba33-b8eae11316ff"}
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 0xad1abf83839f1a3e04b9f1294f28715366f0eb11392eeec8b3f257c58a6cb68d. Chain 2 (Bitcoin): anchored in block 954017 (2026-06-16T23:38:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/37462720-f828-46f6-ba33-b8eae11316ff.json and https://artists.proofprofile.net/proofs/artist/37462720-f828-46f6-ba33-b8eae11316ff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T23:38:33Z
  text: {"copyright_id":"0xad1abf83839f1a3e04b9f1294f28715366f0eb11392eeec8b3f257c58a6cb68d","name":"Herb McGruff","registered_at":"2026-06-16T08:46:35Z","symbol":"NIM0999137","token_address":"0xdb29c42f5b4702626bb9e298b11c0c9261d44552","type":"artist","uuid":"37462720-f828-46f6-ba33-b8eae11316ff"}