Anna Sroka-Hryń
type: MusicGroup
popularity: 13
followers: 354
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5ae0b7a66de0ca354b1e1dbf803a0a7b1493dc82735e6538da02e35b83170170
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953707
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953707
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7cbf91d4-5580-4dad-a647-4b8cab71e7ac.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7cbf91d4-5580-4dad-a647-4b8cab71e7ac.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7cbf91d4-5580-4dad-a647-4b8cab71e7ac
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T23:22:21Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5ae0b7a66de0ca354b1e1dbf803a0a7b1493dc82735e6538da02e35b83170170","name":"Anna Sroka-Hryń","registered_at":"2026-06-14T17:37:51Z","symbol":"NIM0526854","token_address":"0x8c13a603aecbf49c36f0d7ff4cbaa2de65a9db47","type":"artist","uuid":"7cbf91d4-5580-4dad-a647-4b8cab71e7ac"}
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 0x5ae0b7a66de0ca354b1e1dbf803a0a7b1493dc82735e6538da02e35b83170170. Chain 2 (Bitcoin): anchored in block 953707 (2026-06-14T23:22:21Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7cbf91d4-5580-4dad-a647-4b8cab71e7ac.json and https://artists.proofprofile.net/proofs/artist/7cbf91d4-5580-4dad-a647-4b8cab71e7ac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T23:22:21Z
  text: {"copyright_id":"0x5ae0b7a66de0ca354b1e1dbf803a0a7b1493dc82735e6538da02e35b83170170","name":"Anna Sroka-Hryń","registered_at":"2026-06-14T17:37:51Z","symbol":"NIM0526854","token_address":"0x8c13a603aecbf49c36f0d7ff4cbaa2de65a9db47","type":"artist","uuid":"7cbf91d4-5580-4dad-a647-4b8cab71e7ac"}
album: Najpiękniejsza
  type: MusicAlbum
  date published: 2022-12-16
  track: Polska Madonna
    type: MusicRecording
    duration: PT4M22S
    duration ms: 262040
    explicit: false
    by artist: Anna Sroka-Hryń
    in album: Najpiękniejsza
      type: MusicAlbum
      date published: 2022-12-16
    isrc code: PL86S2200007
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T04:10:09+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x811ec73d70f1404c258f7a436aab4393f67e195490c9acf6efd95c1be0df4476
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956639
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL86S2200007
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811ec73d70f1404c258f7a436aab4393f67e195490c9acf6efd95c1be0df4476. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL86S2200007.
      date published: 2026-07-04T11:19:20Z
    audio: Polska Madonna
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 98.102
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.586
      additional property: Energy
        type: PropertyValue
        value: 0.439
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.734
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.07
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.388
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.155
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Ulica, Którą Płyną Moje Obie Dłonie
  type: MusicAlbum
  date published: 2023-11-05
album: Café Luna
  type: MusicAlbum
  date published: 2024-11-28