Oktava
type: MusicGroup
genre: entehno
genre: laïko
description: Oktava (Октава) is a Russian microphone manufacturer, which is part of Ruselectronics holding. It produces a variety of microphones for professional audio and general use. Oktava sells most of its pro
popularity: 2
followers: 110
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd1d04d9c712269635b3e63653ee69a7aa3b2d113549181d954428f8f1578bf60
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953978
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953978
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2c3e58c1-ea94-4733-beb4-ccf70601ccc4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2c3e58c1-ea94-4733-beb4-ccf70601ccc4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2c3e58c1-ea94-4733-beb4-ccf70601ccc4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T17:11:18Z
additional property: OTSCanonicalRecord
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 0xd1d04d9c712269635b3e63653ee69a7aa3b2d113549181d954428f8f1578bf60. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2c3e58c1-ea94-4733-beb4-ccf70601ccc4.json and https://artists.proofprofile.net/proofs/artist/2c3e58c1-ea94-4733-beb4-ccf70601ccc4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
album: Oktava
  type: MusicAlbum
  date published: 2008-01-02
album: Oktava
  type: MusicAlbum
  date published: 2008-01-02
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  type: MusicAlbum
  date published: 2014-04-14
album: Askiseis Aftognwsias
  type: MusicAlbum
  date published: 2022-03-05