Graig Markel
type: MusicGroup
popularity: 3
followers: 80
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdb4b1a92cf3ae2c558b93c7369a1bdab5fc4822f3323c9d1ca19b16df622be02
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cc7a16c8-aaeb-4369-a5ca-6dde03998317.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cc7a16c8-aaeb-4369-a5ca-6dde03998317.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cc7a16c8-aaeb-4369-a5ca-6dde03998317
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdb4b1a92cf3ae2c558b93c7369a1bdab5fc4822f3323c9d1ca19b16df622be02","name":"Graig Markel","registered_at":"2026-06-20T23:45:10Z","symbol":"NIM1751996","token_address":"0x1d62cbd5d028196dff771b1f1037731f3e272981","type":"artist","uuid":"cc7a16c8-aaeb-4369-a5ca-6dde03998317"}
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 0xdb4b1a92cf3ae2c558b93c7369a1bdab5fc4822f3323c9d1ca19b16df622be02. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cc7a16c8-aaeb-4369-a5ca-6dde03998317.json and https://artists.proofprofile.net/proofs/artist/cc7a16c8-aaeb-4369-a5ca-6dde03998317.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xdb4b1a92cf3ae2c558b93c7369a1bdab5fc4822f3323c9d1ca19b16df622be02","name":"Graig Markel","registered_at":"2026-06-20T23:45:10Z","symbol":"NIM1751996","token_address":"0x1d62cbd5d028196dff771b1f1037731f3e272981","type":"artist","uuid":"cc7a16c8-aaeb-4369-a5ca-6dde03998317"}
album: The Summer Fire EP
  type: MusicAlbum
  date published: 2001-11-17
album: The Gospel Project
  type: MusicAlbum
  date published: 2002-09-16
album: Tall Tales on Tape
  type: MusicAlbum
  date published: 2004-04-01
album: Verses on Venus
  type: MusicAlbum
  date published: 2009-11-17
album: Graig Markel
  type: MusicAlbum
  date published: 2012
album: Via Novella (2013 Remaster)
  type: MusicAlbum
  date published: 2013-08-27
album: Hard Grammar
  type: MusicAlbum
  date published: 2013-12-10