DAVID MARK
type: MusicGroup
description: David Alechenu Bonaventure Mark (; born 8 April 1948) is a retired Nigerian army brigadier general and politician. He served as the 12th president of the Nigerian Senate from 2007 to 2015 and was the
popularity: 13
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfd582f3a8e7465c30d49838c44a1a892a9f15240a341afe6a565014479e4ff50
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953713
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953713
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/815034ff-8d40-4070-b1a0-af7a11d24b17.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/815034ff-8d40-4070-b1a0-af7a11d24b17.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/815034ff-8d40-4070-b1a0-af7a11d24b17
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T00:33:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfd582f3a8e7465c30d49838c44a1a892a9f15240a341afe6a565014479e4ff50","name":"DAVID MARK","registered_at":"2026-06-14T18:03:08Z","symbol":"NIM0532845","token_address":"0x75731f39bba57dccaed0e9142e1a1ba904a0d4ba","type":"artist","uuid":"815034ff-8d40-4070-b1a0-af7a11d24b17"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd582f3a8e7465c30d49838c44a1a892a9f15240a341afe6a565014479e4ff50. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/815034ff-8d40-4070-b1a0-af7a11d24b17.json and https://artists.proofprofile.net/proofs/artist/815034ff-8d40-4070-b1a0-af7a11d24b17.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T00:33:41Z
  text: {"copyright_id":"0xfd582f3a8e7465c30d49838c44a1a892a9f15240a341afe6a565014479e4ff50","name":"DAVID MARK","registered_at":"2026-06-14T18:03:08Z","symbol":"NIM0532845","token_address":"0x75731f39bba57dccaed0e9142e1a1ba904a0d4ba","type":"artist","uuid":"815034ff-8d40-4070-b1a0-af7a11d24b17"}
album: Dreamy
  type: MusicAlbum
  date published: 2025-09-13
album: Break Dance
  type: MusicAlbum
  date published: 2025-09-17
album: Pinky
  type: MusicAlbum
  date published: 2025-09-17