Hungarian State Opera Chorus / Hungarian State Opera Orchestra
type: MusicGroup
popularity: 15
followers: 14
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xadc6587d45d04fdfe8e7df8d51136124e0f239a9fdc27b5d535e0452b9d15e97
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953807
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953807
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ee78b24e-9316-4739-bf9b-b5bec9b2570f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ee78b24e-9316-4739-bf9b-b5bec9b2570f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ee78b24e-9316-4739-bf9b-b5bec9b2570f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T16:39:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xadc6587d45d04fdfe8e7df8d51136124e0f239a9fdc27b5d535e0452b9d15e97","name":"Hungarian State Opera Chorus / Hungarian State Opera Orchestra","registered_at":"2026-06-15T05:29:09Z","symbol":"NIM0696595","token_address":"0x16d5d2b278c33c6d96ab5ad6f5d152e22f3cc3c4","type":"artist","uuid":"ee78b24e-9316-4739-bf9b-b5bec9b2570f"}
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 0xadc6587d45d04fdfe8e7df8d51136124e0f239a9fdc27b5d535e0452b9d15e97. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ee78b24e-9316-4739-bf9b-b5bec9b2570f.json and https://artists.proofprofile.net/proofs/artist/ee78b24e-9316-4739-bf9b-b5bec9b2570f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T16:39:18Z
  text: {"copyright_id":"0xadc6587d45d04fdfe8e7df8d51136124e0f239a9fdc27b5d535e0452b9d15e97","name":"Hungarian State Opera Chorus / Hungarian State Opera Orchestra","registered_at":"2026-06-15T05:29:09Z","symbol":"NIM0696595","token_address":"0x16d5d2b278c33c6d96ab5ad6f5d152e22f3cc3c4","type":"artist","uuid":"ee78b24e-9316-4739-bf9b-b5bec9b2570f"}