David Mathews
type: MusicGroup
description: David Mathews ( – July 28, 1800) was an American born British lawyer and politician from New York City. He was a Loyalist during the American Revolutionary War and was the 44th and last Colonial Mayor
popularity: 14
followers: 706
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x64a3088a6fb59bbe29510e06764dfe7f1e24a8ebbe1c6fe4a31fd07b3fca13c5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953678
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953678
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6212b0a4-bd43-42eb-9b54-3cd716562ecf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6212b0a4-bd43-42eb-9b54-3cd716562ecf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6212b0a4-bd43-42eb-9b54-3cd716562ecf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T19:23:11Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x64a3088a6fb59bbe29510e06764dfe7f1e24a8ebbe1c6fe4a31fd07b3fca13c5","name":"David Mathews","registered_at":"2026-06-14T14:48:49Z","symbol":"NIM0486515","token_address":"0xc747b6336db763567a82cbf378de7ab7bd75a752","type":"artist","uuid":"6212b0a4-bd43-42eb-9b54-3cd716562ecf"}
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 0x64a3088a6fb59bbe29510e06764dfe7f1e24a8ebbe1c6fe4a31fd07b3fca13c5. Chain 2 (Bitcoin): anchored in block 953678 (2026-06-14T19:23:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6212b0a4-bd43-42eb-9b54-3cd716562ecf.json and https://artists.proofprofile.net/proofs/artist/6212b0a4-bd43-42eb-9b54-3cd716562ecf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T19:23:11Z
  text: {"copyright_id":"0x64a3088a6fb59bbe29510e06764dfe7f1e24a8ebbe1c6fe4a31fd07b3fca13c5","name":"David Mathews","registered_at":"2026-06-14T14:48:49Z","symbol":"NIM0486515","token_address":"0xc747b6336db763567a82cbf378de7ab7bd75a752","type":"artist","uuid":"6212b0a4-bd43-42eb-9b54-3cd716562ecf"}