Marek Michalik
type: MusicGroup
popularity: 7
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4a8a4143b89fd299e1a69af21ff3e7e09bf3585d468447a1835162ea0ef8b5da
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954650
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954650
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dad7a72f-ff14-4d52-b0d6-5d8e30eb041c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dad7a72f-ff14-4d52-b0d6-5d8e30eb041c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dad7a72f-ff14-4d52-b0d6-5d8e30eb041c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:51:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4a8a4143b89fd299e1a69af21ff3e7e09bf3585d468447a1835162ea0ef8b5da","name":"Marek Michalik","registered_at":"2026-06-21T04:21:48Z","symbol":"NIM1817511","token_address":"0x3d7fb1bf4604dc75d16ace8fa4169e50943cbd90","type":"artist","uuid":"dad7a72f-ff14-4d52-b0d6-5d8e30eb041c"}
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 0x4a8a4143b89fd299e1a69af21ff3e7e09bf3585d468447a1835162ea0ef8b5da. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dad7a72f-ff14-4d52-b0d6-5d8e30eb041c.json and https://artists.proofprofile.net/proofs/artist/dad7a72f-ff14-4d52-b0d6-5d8e30eb041c.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T04:51:12Z
  text: {"copyright_id":"0x4a8a4143b89fd299e1a69af21ff3e7e09bf3585d468447a1835162ea0ef8b5da","name":"Marek Michalik","registered_at":"2026-06-21T04:21:48Z","symbol":"NIM1817511","token_address":"0x3d7fb1bf4604dc75d16ace8fa4169e50943cbd90","type":"artist","uuid":"dad7a72f-ff14-4d52-b0d6-5d8e30eb041c"}
album: Get Stuck
  type: MusicAlbum
  date published: 2025-03-01
  track: Get Stuck
    type: MusicRecording
    duration: PT1M57S
    duration ms: 117699
    explicit: false
    by artist: Marek Michalik
    in album: Get Stuck
      type: MusicAlbum
      date published: 2025-03-01
    isrc code: QM42K2583253
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T21:42:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc15698d4e531281aea51db2fa8407034a62bc403cc6aa1ce2763158b7c605383
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957761
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957761
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM42K2583253
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T21:55:15Z
    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 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 0xc15698d4e531281aea51db2fa8407034a62bc403cc6aa1ce2763158b7c605383. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM42K2583253 — a six-check JSON result.
      date published: 2026-07-12T21:55:15Z
    audio: Get Stuck
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 106.485
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.639
      additional property: Energy
        type: PropertyValue
        value: 0.391
      additional property: Speechiness
        type: PropertyValue
        value: 0.15
      additional property: Acousticness
        type: PropertyValue
        value: 0.724
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.139
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.607
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.267
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor