Bulgarian National Radio Song Ensemble
type: MusicGroup
popularity: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7578be04a6092eb6114c45b01e2e859d4b57fa5681babe732136e7f7f0e9b7ff
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953954
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953954
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/25360794-76d8-433f-bcc4-a164c77a6551.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/25360794-76d8-433f-bcc4-a164c77a6551.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/25360794-76d8-433f-bcc4-a164c77a6551
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T14:18:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7578be04a6092eb6114c45b01e2e859d4b57fa5681babe732136e7f7f0e9b7ff","name":"Bulgarian National Radio Song Ensemble","registered_at":"2026-06-16T02:30:46Z","symbol":"NIM0909379","token_address":"0xb5d55d4a9b8e47e867148a121537289490405d9e","type":"artist","uuid":"25360794-76d8-433f-bcc4-a164c77a6551"}
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 0x7578be04a6092eb6114c45b01e2e859d4b57fa5681babe732136e7f7f0e9b7ff. Chain 2 (Bitcoin): anchored in block 953955 (2026-06-16T14:29:53Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/25360794-76d8-433f-bcc4-a164c77a6551.json and https://artists.proofprofile.net/proofs/artist/25360794-76d8-433f-bcc4-a164c77a6551.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T14:29:53Z
  text: {"copyright_id":"0x7578be04a6092eb6114c45b01e2e859d4b57fa5681babe732136e7f7f0e9b7ff","name":"Bulgarian National Radio Song Ensemble","registered_at":"2026-06-16T02:30:46Z","symbol":"NIM0909379","token_address":"0xb5d55d4a9b8e47e867148a121537289490405d9e","type":"artist","uuid":"25360794-76d8-433f-bcc4-a164c77a6551"}