Sergiu Comissiona
type: MusicGroup
description: thumb|Sergiu Comissiona Sergiu Comissiona (Hebrew: סרג'ו קומיסיונה; June 16, 1928 – March 5, 2005) was a Romanian-Israeli-American conductor and violinist. Biography Early life Born in Bucharest, Ro
popularity: 24
followers: 110
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8c1aac0d661c96ca53f354cf765fc2487e8cda7c3208e69bcafcd14cd36c27b9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/014e9a1f-d78b-4161-b453-8a2daa732357.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/014e9a1f-d78b-4161-b453-8a2daa732357.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/014e9a1f-d78b-4161-b453-8a2daa732357
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8c1aac0d661c96ca53f354cf765fc2487e8cda7c3208e69bcafcd14cd36c27b9","name":"Sergiu Comissiona","registered_at":"2026-06-12T14:53:34Z","symbol":"NIM0002136","token_address":"0xe45e09bf446979fd13fb44c7aa8726530eca439b","type":"artist","uuid":"014e9a1f-d78b-4161-b453-8a2daa732357"}
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 0x8c1aac0d661c96ca53f354cf765fc2487e8cda7c3208e69bcafcd14cd36c27b9. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/014e9a1f-d78b-4161-b453-8a2daa732357.json and https://artists.proofprofile.net/proofs/artist/014e9a1f-d78b-4161-b453-8a2daa732357.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x8c1aac0d661c96ca53f354cf765fc2487e8cda7c3208e69bcafcd14cd36c27b9","name":"Sergiu Comissiona","registered_at":"2026-06-12T14:53:34Z","symbol":"NIM0002136","token_address":"0xe45e09bf446979fd13fb44c7aa8726530eca439b","type":"artist","uuid":"014e9a1f-d78b-4161-b453-8a2daa732357"}