Sala Kongresowa
type: MusicGroup
popularity: 16
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdb01b7e964433aedbc614a4f454bb1145e932412591a00da325bc89594a9f8f3
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/f30265a8-a876-44e0-9211-ed90862d1328.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f30265a8-a876-44e0-9211-ed90862d1328.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f30265a8-a876-44e0-9211-ed90862d1328
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T16:39:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdb01b7e964433aedbc614a4f454bb1145e932412591a00da325bc89594a9f8f3","name":"Sala Kongresowa","registered_at":"2026-06-15T06:02:10Z","symbol":"NIM0704485","token_address":"0x7b4b668bdc145ed888635f34fc0bd0e91a9c73e0","type":"artist","uuid":"f30265a8-a876-44e0-9211-ed90862d1328"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb01b7e964433aedbc614a4f454bb1145e932412591a00da325bc89594a9f8f3. 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/f30265a8-a876-44e0-9211-ed90862d1328.json and https://artists.proofprofile.net/proofs/artist/f30265a8-a876-44e0-9211-ed90862d1328.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T16:39:18Z
  text: {"copyright_id":"0xdb01b7e964433aedbc614a4f454bb1145e932412591a00da325bc89594a9f8f3","name":"Sala Kongresowa","registered_at":"2026-06-15T06:02:10Z","symbol":"NIM0704485","token_address":"0x7b4b668bdc145ed888635f34fc0bd0e91a9c73e0","type":"artist","uuid":"f30265a8-a876-44e0-9211-ed90862d1328"}
album: Klub Muzyczny
  type: MusicAlbum
  date published: 2025-06-23