DAVID GREY
type: MusicGroup
description: David F. Grey is an American professional poker player from Henderson, Nevada. Grey is best known as a cash-game specialist, though he has also achieved several notable poker tournament results. He
popularity: 15
followers: 213
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x27846283d2e67eb30a940704da4ea358c2428112363726c6c27902fa1d512bce
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953803
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953803
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e45eba25-0cce-4942-ba51-fd5e5c280c7d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e45eba25-0cce-4942-ba51-fd5e5c280c7d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e45eba25-0cce-4942-ba51-fd5e5c280c7d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T15:41:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x27846283d2e67eb30a940704da4ea358c2428112363726c6c27902fa1d512bce","name":"DAVID GREY","registered_at":"2026-06-15T04:24:05Z","symbol":"NIM0681068","token_address":"0x2916b5e32ddb7fa4d98bf0e7b16072172e256058","type":"artist","uuid":"e45eba25-0cce-4942-ba51-fd5e5c280c7d"}
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 0x27846283d2e67eb30a940704da4ea358c2428112363726c6c27902fa1d512bce. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e45eba25-0cce-4942-ba51-fd5e5c280c7d.json and https://artists.proofprofile.net/proofs/artist/e45eba25-0cce-4942-ba51-fd5e5c280c7d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T15:41:00Z
  text: {"copyright_id":"0x27846283d2e67eb30a940704da4ea358c2428112363726c6c27902fa1d512bce","name":"DAVID GREY","registered_at":"2026-06-15T04:24:05Z","symbol":"NIM0681068","token_address":"0x2916b5e32ddb7fa4d98bf0e7b16072172e256058","type":"artist","uuid":"e45eba25-0cce-4942-ba51-fd5e5c280c7d"}
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