Claude Ndam
type: MusicGroup
description: Claude Ndam (27 May 1955 – 12 June 2020) was a Cameroonian singer-songwriter. Biography Ndam was born in Foumban in the west of the country. He became famous in the 1980s for his discography. Claude
popularity: 4
followers: 406
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfc7fbeaa9ffb52271058f54912a3fe7d4218963451edbe09875e5dd7c9cff8b2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a2315389-f381-4322-8c0e-258cbf94daa7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a2315389-f381-4322-8c0e-258cbf94daa7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a2315389-f381-4322-8c0e-258cbf94daa7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfc7fbeaa9ffb52271058f54912a3fe7d4218963451edbe09875e5dd7c9cff8b2","name":"Claude Ndam","registered_at":"2026-06-20T06:29:04Z","symbol":"NIM1539648","token_address":"0x6bcf818ba7631160cf5a610c406c0c11ab586da0","type":"artist","uuid":"a2315389-f381-4322-8c0e-258cbf94daa7"}
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 0xfc7fbeaa9ffb52271058f54912a3fe7d4218963451edbe09875e5dd7c9cff8b2. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a2315389-f381-4322-8c0e-258cbf94daa7.json and https://artists.proofprofile.net/proofs/artist/a2315389-f381-4322-8c0e-258cbf94daa7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0xfc7fbeaa9ffb52271058f54912a3fe7d4218963451edbe09875e5dd7c9cff8b2","name":"Claude Ndam","registered_at":"2026-06-20T06:29:04Z","symbol":"NIM1539648","token_address":"0x6bcf818ba7631160cf5a610c406c0c11ab586da0","type":"artist","uuid":"a2315389-f381-4322-8c0e-258cbf94daa7"}
album: U Nguo Ya
  type: MusicAlbum
  date published: 1989
album: Pawa
  type: MusicAlbum
  date published: 1993
album: U nguo ya
  type: MusicAlbum
  date published: 2004-01-01