John Tempesta
type: MusicGroup
description: John Tempesta (born September 26, 1964) is an American drummer known for his work in hard rock and heavy metal. He has been a member of British band the Cult since 2006. He is the brother of guitarist
popularity: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf001782e6aa0352e2b2cb3b8b24f985730bcab9168763ebf2a58371d5f884c50
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f23c1bca-1cf3-43d8-bc0a-7bc3155e8abf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f23c1bca-1cf3-43d8-bc0a-7bc3155e8abf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f23c1bca-1cf3-43d8-bc0a-7bc3155e8abf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf001782e6aa0352e2b2cb3b8b24f985730bcab9168763ebf2a58371d5f884c50","name":"John Tempesta","registered_at":"2026-06-21T13:29:42Z","symbol":"NIM1935831","token_address":"0x7290d53f918c9c74593f8438a77ad6c186d7e6e0","type":"artist","uuid":"f23c1bca-1cf3-43d8-bc0a-7bc3155e8abf"}
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 0xf001782e6aa0352e2b2cb3b8b24f985730bcab9168763ebf2a58371d5f884c50. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f23c1bca-1cf3-43d8-bc0a-7bc3155e8abf.json and https://artists.proofprofile.net/proofs/artist/f23c1bca-1cf3-43d8-bc0a-7bc3155e8abf.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0xf001782e6aa0352e2b2cb3b8b24f985730bcab9168763ebf2a58371d5f884c50","name":"John Tempesta","registered_at":"2026-06-21T13:29:42Z","symbol":"NIM1935831","token_address":"0x7290d53f918c9c74593f8438a77ad6c186d7e6e0","type":"artist","uuid":"f23c1bca-1cf3-43d8-bc0a-7bc3155e8abf"}