Siostry Bal
type: MusicGroup
genre: disco polo
popularity: 7
followers: 802
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd7874b766076e2dedd400123dc0b4fabfece93d241d5ed556094a8903e0c8c1c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954623
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954623
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ca883bf7-8257-4e20-aa8d-2f7d79ff93c0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ca883bf7-8257-4e20-aa8d-2f7d79ff93c0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ca883bf7-8257-4e20-aa8d-2f7d79ff93c0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:40:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd7874b766076e2dedd400123dc0b4fabfece93d241d5ed556094a8903e0c8c1c","name":"Siostry Bal","registered_at":"2026-06-20T22:59:32Z","symbol":"NIM1738083","token_address":"0xb88edf04658e957fb8b5fd08bf6945c1742b1402","type":"artist","uuid":"ca883bf7-8257-4e20-aa8d-2f7d79ff93c0"}
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 0xd7874b766076e2dedd400123dc0b4fabfece93d241d5ed556094a8903e0c8c1c. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ca883bf7-8257-4e20-aa8d-2f7d79ff93c0.json and https://artists.proofprofile.net/proofs/artist/ca883bf7-8257-4e20-aa8d-2f7d79ff93c0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:40:06Z
  text: {"copyright_id":"0xd7874b766076e2dedd400123dc0b4fabfece93d241d5ed556094a8903e0c8c1c","name":"Siostry Bal","registered_at":"2026-06-20T22:59:32Z","symbol":"NIM1738083","token_address":"0xb88edf04658e957fb8b5fd08bf6945c1742b1402","type":"artist","uuid":"ca883bf7-8257-4e20-aa8d-2f7d79ff93c0"}
album: Rzuciłam chłopaka (Radio Edit)
  type: MusicAlbum
  date published: 2022-01-10
album: Chłopy
  type: MusicAlbum
  date published: 2022-04-15
album: Kochana
  type: MusicAlbum
  date published: 2022-05-27