Martin Valihora
type: MusicGroup
description: Martin Valihora (born 4 May 1976) is a Slovak drummer and percussionist. Valihora studied piano between 1986 and 1987, but then switched to drums, having received private lessons from a Slovak drumme
popularity: 2
followers: 8
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf7dd477e08b0cd4345de7116b5c64568ec6c9e43fe4ad38d43d3f47c5ca67dba
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954593
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954593
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bd5afe51-58f3-4eb4-bff4-4167dcfa094f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bd5afe51-58f3-4eb4-bff4-4167dcfa094f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bd5afe51-58f3-4eb4-bff4-4167dcfa094f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:46:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf7dd477e08b0cd4345de7116b5c64568ec6c9e43fe4ad38d43d3f47c5ca67dba","name":"Martin Valihora","registered_at":"2026-06-20T17:47:21Z","symbol":"NIM1672313","token_address":"0x2eff6e8e9dc4995d45dbfde3e0451057f99e753b","type":"artist","uuid":"bd5afe51-58f3-4eb4-bff4-4167dcfa094f"}
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 0xf7dd477e08b0cd4345de7116b5c64568ec6c9e43fe4ad38d43d3f47c5ca67dba. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bd5afe51-58f3-4eb4-bff4-4167dcfa094f.json and https://artists.proofprofile.net/proofs/artist/bd5afe51-58f3-4eb4-bff4-4167dcfa094f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:46:01Z
  text: {"copyright_id":"0xf7dd477e08b0cd4345de7116b5c64568ec6c9e43fe4ad38d43d3f47c5ca67dba","name":"Martin Valihora","registered_at":"2026-06-20T17:47:21Z","symbol":"NIM1672313","token_address":"0x2eff6e8e9dc4995d45dbfde3e0451057f99e753b","type":"artist","uuid":"bd5afe51-58f3-4eb4-bff4-4167dcfa094f"}