Dave Cox
type: MusicGroup
description: David E. Cox (February 20, 1938 – July 13, 2010) was an American politician from Holdenville, Oklahoma. A Republican, he served as a California State Senator, representing the 1st district from Decemb
popularity: 8
followers: 16
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x467735d033d1489ac67103c2af547ea5172f4a193cd84d8ca668a33b209e0f3e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954555
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954555
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/af144b28-dbba-477a-a680-8e688406004b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/af144b28-dbba-477a-a680-8e688406004b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/af144b28-dbba-477a-a680-8e688406004b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T12:10:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x467735d033d1489ac67103c2af547ea5172f4a193cd84d8ca668a33b209e0f3e","name":"Dave Cox","registered_at":"2026-06-20T11:25:14Z","symbol":"NIM1601862","token_address":"0x46a24de097ff050227603246456a7b16eca7105c","type":"artist","uuid":"af144b28-dbba-477a-a680-8e688406004b"}
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 0x467735d033d1489ac67103c2af547ea5172f4a193cd84d8ca668a33b209e0f3e. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/af144b28-dbba-477a-a680-8e688406004b.json and https://artists.proofprofile.net/proofs/artist/af144b28-dbba-477a-a680-8e688406004b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T12:10:20Z
  text: {"copyright_id":"0x467735d033d1489ac67103c2af547ea5172f4a193cd84d8ca668a33b209e0f3e","name":"Dave Cox","registered_at":"2026-06-20T11:25:14Z","symbol":"NIM1601862","token_address":"0x46a24de097ff050227603246456a7b16eca7105c","type":"artist","uuid":"af144b28-dbba-477a-a680-8e688406004b"}