Martín E. Swynarczyn
type: MusicGroup
popularity: 9
followers: 103
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd95f041b17238a736e6ed0117aa933967d3facebc4ee641306a6615c34b2f4d9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ee08d583-9092-4049-af73-1a20406e6903.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ee08d583-9092-4049-af73-1a20406e6903.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ee08d583-9092-4049-af73-1a20406e6903
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd95f041b17238a736e6ed0117aa933967d3facebc4ee641306a6615c34b2f4d9","name":"Martín E. Swynarczyn","registered_at":"2026-06-21T18:52:37Z","symbol":"NIM1916945","token_address":"0x9a38f27f6d20d36953460a1733510acee19eadbd","type":"artist","uuid":"ee08d583-9092-4049-af73-1a20406e6903"}
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 0xd95f041b17238a736e6ed0117aa933967d3facebc4ee641306a6615c34b2f4d9. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ee08d583-9092-4049-af73-1a20406e6903.json and https://artists.proofprofile.net/proofs/artist/ee08d583-9092-4049-af73-1a20406e6903.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xd95f041b17238a736e6ed0117aa933967d3facebc4ee641306a6615c34b2f4d9","name":"Martín E. Swynarczyn","registered_at":"2026-06-21T18:52:37Z","symbol":"NIM1916945","token_address":"0x9a38f27f6d20d36953460a1733510acee19eadbd","type":"artist","uuid":"ee08d583-9092-4049-af73-1a20406e6903"}
album: Sweden
  type: MusicAlbum
  date published: 2021-09-23
album: Hoffnungslos
  type: MusicAlbum
  date published: 2021-12-10
  track: Hoffnungslos
    type: MusicRecording
    duration: PT3M33S
    duration ms: 213502
    explicit: false
    by artist: Martín E. Swynarczyn
    in album: Hoffnungslos
      type: MusicAlbum
      date published: 2021-12-10
    isrc code: QZTPX2178963
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T17:06:58+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x35c3f9f971ba9e2e9984582a9664c400d7832145552fda310f6ace55b2d4a8c9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958316
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958316
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTPX2178963
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T02:01:47Z
    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 0x35c3f9f971ba9e2e9984582a9664c400d7832145552fda310f6ace55b2d4a8c9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:01:47Z), 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/QZTPX2178963.
      date published: 2026-07-17T02:01:47Z
    audio: Hoffnungslos
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 116.06
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.565
      additional property: Energy
        type: PropertyValue
        value: 0.053
      additional property: Speechiness
        type: PropertyValue
        value: 0.185
      additional property: Acousticness
        type: PropertyValue
        value: 0.983
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.899
      additional property: Liveness
        type: PropertyValue
        value: 0.057
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.135
      additional property: Loudness (dB)
        type: PropertyValue
        value: -21.263
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Aurora
  type: MusicAlbum
  date published: 2022-02-20
album: A Model Of The Universe
  type: MusicAlbum
  date published: 2022-02-27
album: Nuvole Bianche
  type: MusicAlbum
  date published: 2022-11-18
album: All Gone (No Escape)
  type: MusicAlbum
  date published: 2022-11-25
album: Gabriel's Oboe
  type: MusicAlbum
  date published: 2022-11-30
album: Goodbye
  type: MusicAlbum
  date published: 2022-12-02
album: The Lonely Shepherd
  type: MusicAlbum
  date published: 2022-12-02