Heczko
type: MusicGroup
popularity: 11
followers: 127
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x601dd2ab0220962dd0babf775714ca27b36fe0ad5ca34d4d59a296c2dc56e2c1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953762
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953762
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ba943940-1886-443c-9e8c-20419b4b5fa3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ba943940-1886-443c-9e8c-20419b4b5fa3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ba943940-1886-443c-9e8c-20419b4b5fa3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T08:21:23Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601dd2ab0220962dd0babf775714ca27b36fe0ad5ca34d4d59a296c2dc56e2c1. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba943940-1886-443c-9e8c-20419b4b5fa3.json and https://artists.proofprofile.net/proofs/artist/ba943940-1886-443c-9e8c-20419b4b5fa3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T09:50:11Z
album: chłodny napoik
  type: MusicAlbum
  date published: 2020-04-01
album: chłodny napoik
  type: MusicAlbum
  date published: 2020-12-18
album: that's true
  type: MusicAlbum
  date published: 2021-11-02
album: that's true
  type: MusicAlbum
  date published: 2021-11-04
album: too much
  type: MusicAlbum
  date published: 2022-05-31
album: too much
  type: MusicAlbum
  date published: 2022-06-04
album: 18:03
  type: MusicAlbum
  date published: 2022-10-28
album: 18:03
  type: MusicAlbum
  date published: 2022-10-28
album: dreszcz
  type: MusicAlbum
  date published: 2023-02-09
album: muza
  type: MusicAlbum
  date published: 2023-03-21
album: muza
  type: MusicAlbum
  date published: 2023-03-21
album: baby
  type: MusicAlbum
  date published: 2023-06-13
album: baby
  type: MusicAlbum
  date published: 2023-06-13
album: kocham
  type: MusicAlbum
  date published: 2023-06-20
album: cruisin'
  type: MusicAlbum
  date published: 2024-01-03
  track: cruisin'
    type: MusicRecording
    duration: PT3M11S
    duration ms: 191036
    explicit: true
    by artist: Heczko
    in album: cruisin'
      type: MusicAlbum
      date published: 2024-01-03
    isrc code: QZWFM2373049
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T15:00:09+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xaa09ca1a913816ccea95446f3318ebf3a85ff39ec08ec78a560c4509b3391acb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959024
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959024
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFM2373049
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T15:31:18Z
    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 0xaa09ca1a913816ccea95446f3318ebf3a85ff39ec08ec78a560c4509b3391acb. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/QZWFM2373049.
      date published: 2026-07-21T15:31:18Z
    audio: cruisin'
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 87.976
      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: 0.783
      additional property: Energy
        type: PropertyValue
        value: 0.674
      additional property: Speechiness
        type: PropertyValue
        value: 0.073
      additional property: Acousticness
        type: PropertyValue
        value: 0.412
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.302
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.829
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.846
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 6 zmysł
  type: MusicAlbum
  date published: 2024-08-31
  track: 6 zmysł
    type: MusicRecording
    duration: PT3M12S
    duration ms: 192890
    explicit: false
    by artist: Heczko
    in album: 6 zmysł
      type: MusicAlbum
      date published: 2024-08-31
    isrc code: PLI363632150
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T00:46:57+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd6d9ba9d7eacdbbd78929c5ca85eb47b3ac7269f08829f45b4edd5e51ef66b53
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958476
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958476
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLI363632150
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T01:26:56Z
    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
    audio: 6 zmysł
album: miska ryżu
album: melody
album: over
album: rymy
album: muzyka podziemia

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d9ba9d7eacdbbd78929c5ca85eb47b3ac7269f08829f45b4edd5e51ef66b53. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/PLI363632150.
date published: 2026-07-18T01:26:56Z

6 zmysł
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 80.02
additional property: Musical Key
  type: PropertyValue
  value: 10
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.739
additional property: Energy
  type: PropertyValue
  value: 0.44
additional property: Speechiness
  type: PropertyValue
  value: 0.052
additional property: Acousticness
  type: PropertyValue
  value: 0.382
additional property: Instrumentalness
  type: PropertyValue
  value: 0.004
additional property: Liveness
  type: PropertyValue
  value: 0.091
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.674
additional property: Loudness (dB)
  type: PropertyValue
  value: -10.375
additional property: Key Name
  type: PropertyValue
  value: Bb
additional property: Mode Name
  type: PropertyValue
  value: Minor

miska ryżu
type: MusicAlbum
date published: 2024-09-30

melody
type: MusicAlbum
date published: 2024-10-31

melody
type: MusicAlbum
date published: 2024-10-31

over
type: MusicAlbum
date published: 2024-12-17

rymy
type: MusicAlbum
date published: 2025-03-11

muzyka podziemia
type: MusicAlbum
date published: 2025-03-25
track: good in
  type: MusicRecording
  duration: PT2M8S
  duration ms: 128000
  explicit: false
  by artist: Heczko
  in album: muzyka podziemia
    type: MusicAlbum
    date published: 2025-03-25
  isrc code: PLI367606210
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T10:47:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4f88aa79bf97f0d3d36a3b9642fb95e6b638b0497cb7a5c12c9cdce4b1a26a87
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958543
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958543
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLI367606210
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T11:58:44Z
  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 0x4f88aa79bf97f0d3d36a3b9642fb95e6b638b0497cb7a5c12c9cdce4b1a26a87. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/PLI367606210.
    date published: 2026-07-18T11:58:44Z
  audio: good in
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 149.998
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.666
    additional property: Energy
      type: PropertyValue
      value: 0.255
    additional property: Speechiness
      type: PropertyValue
      value: 0.059
    additional property: Acousticness
      type: PropertyValue
      value: 0.485
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.001
    additional property: Liveness
      type: PropertyValue
      value: 0.108
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.46
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.966
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Minor