Boris Carmeli
type: MusicGroup
description: Boris Carmeli (23 April 1928 – 31 July 2009) was a Polish operatic basso profondo known for his "fervent rich hued tones" and extensive repertory of more than 70 operas and 60 oratorios. During his lo
popularity: 3
followers: 12
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xebe3316ff083312c4cb029f32703e2e01e014be26ee4db7a68974f887a8799ef
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953907
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953907
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/15873014-4e5b-4edb-adee-63e6f3569183.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/15873014-4e5b-4edb-adee-63e6f3569183.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/15873014-4e5b-4edb-adee-63e6f3569183
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:39:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xebe3316ff083312c4cb029f32703e2e01e014be26ee4db7a68974f887a8799ef","name":"Boris Carmeli","registered_at":"2026-06-15T21:07:23Z","symbol":"NIM0832181","token_address":"0xa981b8afba1b171c46cce9d4f02e17d8f21d6438","type":"artist","uuid":"15873014-4e5b-4edb-adee-63e6f3569183"}
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 0xebe3316ff083312c4cb029f32703e2e01e014be26ee4db7a68974f887a8799ef. Chain 2 (Bitcoin): anchored in block 953907 (2026-06-16T07:39:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15873014-4e5b-4edb-adee-63e6f3569183.json and https://artists.proofprofile.net/proofs/artist/15873014-4e5b-4edb-adee-63e6f3569183.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:39:24Z
  text: {"copyright_id":"0xebe3316ff083312c4cb029f32703e2e01e014be26ee4db7a68974f887a8799ef","name":"Boris Carmeli","registered_at":"2026-06-15T21:07:23Z","symbol":"NIM0832181","token_address":"0xa981b8afba1b171c46cce9d4f02e17d8f21d6438","type":"artist","uuid":"15873014-4e5b-4edb-adee-63e6f3569183"}