Aleksei Maslennikov
type: MusicGroup
genre: opera
description: Aleksei (Albert) Dmitriyevich Maslennikov (; September 9, 1929 – November 30, 2016) was a Russian tenor. Maslennikov was born in Novocherkassk, Russia. In 1953 he studied at the Moscow Conservatory
popularity: 3
followers: 83
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc97dcb26c6c6651f1ce63bfdc0e69f1db919c842ac9d6ef5ce2b234b1fffb0d7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/143fc43a-b4f7-447c-9fca-509f3f2bd73b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/143fc43a-b4f7-447c-9fca-509f3f2bd73b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/143fc43a-b4f7-447c-9fca-509f3f2bd73b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc97dcb26c6c6651f1ce63bfdc0e69f1db919c842ac9d6ef5ce2b234b1fffb0d7","name":"Aleksei Maslennikov","registered_at":"2026-06-15T20:38:47Z","symbol":"NIM0825365","token_address":"0x8bcd8a447df889aca1481751b1a0a16cbedf13cc","type":"artist","uuid":"143fc43a-b4f7-447c-9fca-509f3f2bd73b"}
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 0xc97dcb26c6c6651f1ce63bfdc0e69f1db919c842ac9d6ef5ce2b234b1fffb0d7. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/143fc43a-b4f7-447c-9fca-509f3f2bd73b.json and https://artists.proofprofile.net/proofs/artist/143fc43a-b4f7-447c-9fca-509f3f2bd73b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0xc97dcb26c6c6651f1ce63bfdc0e69f1db919c842ac9d6ef5ce2b234b1fffb0d7","name":"Aleksei Maslennikov","registered_at":"2026-06-15T20:38:47Z","symbol":"NIM0825365","token_address":"0x8bcd8a447df889aca1481751b1a0a16cbedf13cc","type":"artist","uuid":"143fc43a-b4f7-447c-9fca-509f3f2bd73b"}
album: Schumann: Dichterliebe, Fantasie In C Major
  type: MusicAlbum
  date published: 2006-11-29