Jah Mason
type: MusicGroup
description: Andre Johnson (born 29 December 1970), better known by his stage name Jah Mason, also known as Fire Mason, is a reggae singer/deejay from Jamaica, active as a recording artist since 1991. Biography J
popularity: 6
followers: 34
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x75ded89ff7e846785c84c807ea304bfe116c1486900cac515ed016fab025d596
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a939c308-c28a-4a4c-a133-21030ffbc685.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a939c308-c28a-4a4c-a133-21030ffbc685.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a939c308-c28a-4a4c-a133-21030ffbc685
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x75ded89ff7e846785c84c807ea304bfe116c1486900cac515ed016fab025d596","name":"Jah Mason","registered_at":"2026-06-20T09:05:00Z","symbol":"NIM1573581","token_address":"0x35e9a8430a3f94e26f48242c94df1e30e0b0be5d","type":"artist","uuid":"a939c308-c28a-4a4c-a133-21030ffbc685"}
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 0x75ded89ff7e846785c84c807ea304bfe116c1486900cac515ed016fab025d596. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a939c308-c28a-4a4c-a133-21030ffbc685.json and https://artists.proofprofile.net/proofs/artist/a939c308-c28a-4a4c-a133-21030ffbc685.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0x75ded89ff7e846785c84c807ea304bfe116c1486900cac515ed016fab025d596","name":"Jah Mason","registered_at":"2026-06-20T09:05:00Z","symbol":"NIM1573581","token_address":"0x35e9a8430a3f94e26f48242c94df1e30e0b0be5d","type":"artist","uuid":"a939c308-c28a-4a4c-a133-21030ffbc685"}