Sierpu
type: MusicGroup
popularity: 2
followers: 116
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9ab936930bec854f99e1fe1f09bc18d653462bba0c6c15abe1ce135fcb12ca4b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954038
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954038
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3de01532-4091-4ecb-8257-388bb7644885.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3de01532-4091-4ecb-8257-388bb7644885.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3de01532-4091-4ecb-8257-388bb7644885
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T02:57:22Z
additional property: OTSCanonicalRecord
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 0x9ab936930bec854f99e1fe1f09bc18d653462bba0c6c15abe1ce135fcb12ca4b. Chain 2 (Bitcoin): anchored in block 954039 (2026-06-17T03:00:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3de01532-4091-4ecb-8257-388bb7644885.json and https://artists.proofprofile.net/proofs/artist/3de01532-4091-4ecb-8257-388bb7644885.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T03:00:41Z
album: Chorewizje
  type: MusicAlbum
  date published: 2023-07-10
album: Bajka
  type: MusicAlbum
  date published: 2023-07-20
album: Bzzt Bzzt
  type: MusicAlbum
  date published: 2023-07-27
album: Daj mi trochę ciepła
  type: MusicAlbum
  date published: 2024-05-24
album: Randolove
  type: MusicAlbum
  date published: 2024-06-28
album: W poszukiwaniu szczęścia
  type: MusicAlbum
  date published: 2024-08-30
album: Anioł Stróż
  type: MusicAlbum
  date published: 2024-10-25
album: Jeszcze raz
  type: MusicAlbum
  date published: 2025-02-14
album: Taniec przeznaczenia
  type: MusicAlbum
  date published: 2025-03-07
album: Chwile
  type: MusicAlbum
  date published: 2025-04-25
album: Labiracja
  type: MusicAlbum
  date published: 2025-07-18