Agnieszka Adamczewska
type: MusicGroup
popularity: 5
followers: 418
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe8699eaa575e4f7fead2b05cd77edc7c3b5866a3eb12bd2b1fe618b587b6cf5b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953970
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953970
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/29e739f0-93c9-41e3-ac0d-80d82a6c1f1a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/29e739f0-93c9-41e3-ac0d-80d82a6c1f1a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/29e739f0-93c9-41e3-ac0d-80d82a6c1f1a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:09:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe8699eaa575e4f7fead2b05cd77edc7c3b5866a3eb12bd2b1fe618b587b6cf5b","name":"Agnieszka Adamczewska","registered_at":"2026-06-16T04:12:59Z","symbol":"NIM0933786","token_address":"0xaf11664e5d1b6de136f67e368dc9e08d162ced0a","type":"artist","uuid":"29e739f0-93c9-41e3-ac0d-80d82a6c1f1a"}
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 0xe8699eaa575e4f7fead2b05cd77edc7c3b5866a3eb12bd2b1fe618b587b6cf5b. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29e739f0-93c9-41e3-ac0d-80d82a6c1f1a.json and https://artists.proofprofile.net/proofs/artist/29e739f0-93c9-41e3-ac0d-80d82a6c1f1a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0xe8699eaa575e4f7fead2b05cd77edc7c3b5866a3eb12bd2b1fe618b587b6cf5b","name":"Agnieszka Adamczewska","registered_at":"2026-06-16T04:12:59Z","symbol":"NIM0933786","token_address":"0xaf11664e5d1b6de136f67e368dc9e08d162ced0a","type":"artist","uuid":"29e739f0-93c9-41e3-ac0d-80d82a6c1f1a"}
album: Na Wszystko Przyjdzie Czas
  type: MusicAlbum
  date published: 2018-02-21
  track: Na Wszystko Przyjdzie Czas
    type: MusicRecording
    duration: PT3M4S
    duration ms: 184761
    explicit: false
    by artist: Agnieszka Adamczewska
    in album: Na Wszystko Przyjdzie Czas
      type: MusicAlbum
      date published: 2018-02-21
    isrc code: PLUM71800098
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T04:06:45+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2fc346c114c240ef7451293bbf179b3f95d5e30e0ac245bb2a1a8f9845098075
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958238
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958238
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLUM71800098
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T07:04:27Z
    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 0x2fc346c114c240ef7451293bbf179b3f95d5e30e0ac245bb2a1a8f9845098075. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:04:27Z), 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/PLUM71800098.
      date published: 2026-07-16T07:04:27Z
    audio: Na Wszystko Przyjdzie Czas
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.976
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.737
      additional property: Energy
        type: PropertyValue
        value: 0.651
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0.126
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.094
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.48
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.687
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Na Wszystko Przyjdzie Czas
  type: MusicAlbum
  date published: 2018-02-21
album: Na Wszystko Przyjdzie Czas (MANDEE Remix)
  type: MusicAlbum
  date published: 2018-05-11
album: W Moje Oczy Patrz
  type: MusicAlbum
  date published: 2018-08-15