Sadfaces
type: MusicGroup
popularity: 4
followers: 147
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x35dead42b986cff86c12ba33af06f0f3a9d6b1654b4282462eaedf7794c6d4e7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5330610d-9ca2-410b-b166-1f902a818f96.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5330610d-9ca2-410b-b166-1f902a818f96.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5330610d-9ca2-410b-b166-1f902a818f96
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
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 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 0x35dead42b986cff86c12ba33af06f0f3a9d6b1654b4282462eaedf7794c6d4e7. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5330610d-9ca2-410b-b166-1f902a818f96.json and https://artists.proofprofile.net/proofs/artist/5330610d-9ca2-410b-b166-1f902a818f96.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
album: Mówisz, Że Nie Kocham
  type: MusicAlbum
  date published: 2019-04-18
album: 06
  type: MusicAlbum
  date published: 2019-08-04
album: Przestałem Cierpieć
  type: MusicAlbum
  date published: 2019-09-03
album: Późna Godzina
  type: MusicAlbum
  date published: 2019-10-07
album: Ta Róża Nie Zakwitnie
  type: MusicAlbum
  date published: 2019-10-20
album: Tonę
  type: MusicAlbum
  date published: 2019-11-13
album: Wieczny Sen
  type: MusicAlbum
  date published: 2019-12-09
album: Smutna Historia o Miłości
  type: MusicAlbum
  date published: 2020-02-17
album: Noc
  type: MusicAlbum
  date published: 2020-03-08
album: Szmaragdowy Sen
  type: MusicAlbum
  date published: 2020-06-01
album: Hermit
  type: MusicAlbum
  date published: 2020-06-16
album: Gwiazdy
  type: MusicAlbum
  date published: 2020-07-08
album: Zostan na Moment
  type: MusicAlbum
  date published: 2020-11-07
album: Żyletki i Noże
  type: MusicAlbum
  date published: 2020-12-02
  track: Żyletki i Noże
    type: MusicRecording
    duration: PT2M56S
    duration ms: 176677
    explicit: true
    by artist: Sadfaces
    in album: Żyletki i Noże
      type: MusicAlbum
      date published: 2020-12-02
    isrc code: QZNWV2063171
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T00:12:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x90591b8e670b8680184480df92e08ec0f980e3fda99109dadccabcd34f6a7bce
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958631
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958631
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWV2063171
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T00:50:09Z
    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 0x90591b8e670b8680184480df92e08ec0f980e3fda99109dadccabcd34f6a7bce. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZNWV2063171.
      date published: 2026-07-19T00:50:09Z
    audio: Żyletki i Noże
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 178.25
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.372
      additional property: Energy
        type: PropertyValue
        value: 0.31
      additional property: Speechiness
        type: PropertyValue
        value: 0.148
      additional property: Acousticness
        type: PropertyValue
        value: 0.534
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.111
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.058
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.404
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Inaczej
  type: MusicAlbum
  date published: 2021-04-06
album: Róże
  type: MusicAlbum
  date published: 2021-04-18
album: Kres
  type: MusicAlbum
  date published: 2021-06-06
album: O Tobie
  type: MusicAlbum
  date published: 2021-08-27
album: Późna Godzina (nie taka jak kiedyś)
  type: MusicAlbum
  date published: 2022-02-28
album: Ostatni Dzień
  type: MusicAlbum
  date published: 2022-06-06