Nikolai Evrov
type: MusicGroup
popularity: 2
followers: 152
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x55ca55ab3d8a62322c4927eb9356aee2f6f564dca74413a3c605eaf85110b252
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954618
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954618
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c7791c45-3de7-410c-b694-df85d1ab5b7c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c7791c45-3de7-410c-b694-df85d1ab5b7c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c7791c45-3de7-410c-b694-df85d1ab5b7c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:05:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x55ca55ab3d8a62322c4927eb9356aee2f6f564dca74413a3c605eaf85110b252","name":"Nikolai Evrov","registered_at":"2026-06-20T21:59:33Z","symbol":"NIM1726351","token_address":"0x33260cbe55b1c07facc2c2e932bcd2f4df1c8490","type":"artist","uuid":"c7791c45-3de7-410c-b694-df85d1ab5b7c"}
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 0x55ca55ab3d8a62322c4927eb9356aee2f6f564dca74413a3c605eaf85110b252. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c7791c45-3de7-410c-b694-df85d1ab5b7c.json and https://artists.proofprofile.net/proofs/artist/c7791c45-3de7-410c-b694-df85d1ab5b7c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:05:13Z
  text: {"copyright_id":"0x55ca55ab3d8a62322c4927eb9356aee2f6f564dca74413a3c605eaf85110b252","name":"Nikolai Evrov","registered_at":"2026-06-20T21:59:33Z","symbol":"NIM1726351","token_address":"0x33260cbe55b1c07facc2c2e932bcd2f4df1c8490","type":"artist","uuid":"c7791c45-3de7-410c-b694-df85d1ab5b7c"}
album: Liszt: Concerto for Piano and Orchestra in A Major, No. 2, S. 125 - Rachmaninoff: Rhapsody on a Theme of Paganini, Op. 43
  type: MusicAlbum
  date published: 1973-01-05
album: Alexander Yossifov: Concerto for Piano and Orchestra - Pancho Vladigerov: 5 Pieces for Piano, Op. 60
  type: MusicAlbum
  date published: 1975-02-12
album: Popular Piano Pieces: Nikolai Evrov (Recital)
  type: MusicAlbum
  date published: 1978-05-30
album: Popular Piano Pieces: Nikolai Evrov (Recital)
  type: MusicAlbum
  date published: 1978-12-13
album: Nikolai Evrov: Popular piano pieces
  type: MusicAlbum
  date published: 1979-06-27
album: Popular Piano Pieces: Nikolai Evrov (Recital)
  type: MusicAlbum
  date published: 1979-11-12
album: Schubert - Chopin: Selected Works
  type: MusicAlbum
  date published: 1988-08-08
album: Mozart - Mussorgsky - Liszt - Tchaikovsky - Rachmaninoff: Selected Works
  type: MusicAlbum
  date published: 1990-04-30
album: Romantic Retreat: A Classical Escape
  type: MusicAlbum
  date published: 2009-11-05
album: Romantic Retreat: A Classical Escape
  type: MusicAlbum
  date published: 2009-11-05
album: Piano by Candlelight
  type: MusicAlbum
  date published: 2015-01-01
album: Piano by Candlelight
  type: MusicAlbum
  date published: 2015-09-01