Taco Hemingway
type: MusicGroup
popularity: 71
followers: 1700862
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3ddbf11fd222e5bdce7706d17f65117e33bcee684efe2b99687ea8b745eab54d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953423
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953423
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c9b58301-031a-4c89-ae54-3d7cf0a549e5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c9b58301-031a-4c89-ae54-3d7cf0a549e5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c9b58301-031a-4c89-ae54-3d7cf0a549e5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T21:20:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3ddbf11fd222e5bdce7706d17f65117e33bcee684efe2b99687ea8b745eab54d","name":"Taco Hemingway","registered_at":"2026-06-12T09:46:10Z","symbol":"NIM0260290","token_address":"0xaad3f115aa41a7cfcba9c78148e885da6d3e636d","type":"artist","uuid":"c9b58301-031a-4c89-ae54-3d7cf0a549e5"}
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 → block must exist at that height 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 0x3ddbf11fd222e5bdce7706d17f65117e33bcee684efe2b99687ea8b745eab54d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9b58301-031a-4c89-ae54-3d7cf0a549e5.json and https://artists.proofprofile.net/proofs/artist/c9b58301-031a-4c89-ae54-3d7cf0a549e5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0x3ddbf11fd222e5bdce7706d17f65117e33bcee684efe2b99687ea8b745eab54d","name":"Taco Hemingway","registered_at":"2026-06-12T09:46:10Z","symbol":"NIM0260290","token_address":"0xaad3f115aa41a7cfcba9c78148e885da6d3e636d","type":"artist","uuid":"c9b58301-031a-4c89-ae54-3d7cf0a549e5"}
album: Trójkąt warszawski
  type: MusicAlbum
  date published: 2015-05-13
  track: Szlugi I Kalafiory
    type: MusicRecording
    duration: PT3M6S
    duration ms: 186045
    explicit: false
    by artist: Taco Hemingway
    in album: Trójkąt warszawski
      type: MusicAlbum
      date published: 2015-05-13
    isrc code: QM4DW1504335
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-04T06:54:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x51fe09cb6a7246b5bec63b040769b07a2650a111d8cef68ef52ce3ddf0313cc8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 953536
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block/953536
    additional property: OTSRecordURL
      type: PropertyValue
      value: https://artists.proofprofile.net/proofs/track/7kErF7jXHHvl0HefC09R4X.json
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7kErF7jXHHvl0HefC09R4X
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-06-13T17:25:41Z
    additional property: OTSCanonicalRecord
      type: PropertyValue
      value: {"copyright_id":"0x51fe09cb6a7246b5bec63b040769b07a2650a111d8cef68ef52ce3ddf0313cc8","isrc":"QM4DW1504335","name":"Szlugi I Kalafiory","registered_at":"2026-06-04T06:54:25Z","spotify_id":"7kErF7jXHHvl0HefC09R4X","type":"track"}
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x51fe09cb6a7246b5bec63b040769b07a2650a111d8cef68ef52ce3ddf0313cc8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7kErF7jXHHvl0HefC09R4X.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7kErF7jXHHvl0HefC09R4X.
      date published: 2026-06-13T17:25:41Z
      text: {"copyright_id":"0x51fe09cb6a7246b5bec63b040769b07a2650a111d8cef68ef52ce3ddf0313cc8","isrc":"QM4DW1504335","name":"Szlugi I Kalafiory","registered_at":"2026-06-04T06:54:25Z","spotify_id":"7kErF7jXHHvl0HefC09R4X","type":"track"}
  track: Marsz, Marsz
    type: MusicRecording
    duration: PT3M50S
    duration ms: 230427
    explicit: false
    by artist: Taco Hemingway
    in album: Trójkąt warszawski
      type: MusicAlbum
      date published: 2015-05-13
    isrc code: QM4DW1504336
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-04T06:49:07+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x70463e0319f0b21d12e024d08ea7220115e50d490057a0023bee566a11b80347
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 953536
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block/953536
    additional property: OTSRecordURL
      type: PropertyValue
      value: https://artists.proofprofile.net/proofs/track/5tOVc7CGhjt5KsuDIreM5B.json
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5tOVc7CGhjt5KsuDIreM5B
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-06-13T17:25:41Z
    additional property: OTSCanonicalRecord
      type: PropertyValue
      value: {"copyright_id":"0x70463e0319f0b21d12e024d08ea7220115e50d490057a0023bee566a11b80347","isrc":"QM4DW1504336","name":"Marsz, Marsz","registered_at":"2026-06-04T06:49:07Z","spotify_id":"5tOVc7CGhjt5KsuDIreM5B","type":"track"}
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x70463e0319f0b21d12e024d08ea7220115e50d490057a0023bee566a11b80347. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5tOVc7CGhjt5KsuDIreM5B.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5tOVc7CGhjt5KsuDIreM5B.
      date published: 2026-06-13T17:25:41Z
      text: {"copyright_id":"0x70463e0319f0b21d12e024d08ea7220115e50d490057a0023bee566a11b80347","isrc":"QM4DW1504336","name":"Marsz, Marsz","registered_at":"2026-06-04T06:49:07Z","spotify_id":"5tOVc7CGhjt5KsuDIreM5B","type":"track"}
  track: Wszystko Jedno
    type: MusicRecording
    duration: PT5M10S
    duration ms: 310152
    explicit: false
    by artist: Taco Hemingway
    in album: Trójkąt warszawski
      type: MusicAlbum
      date published: 2015-05-13
    isrc code: QM4DW1504337
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-01T23:27:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3be415cfda08db840a24d05880fc28316030976dca8ba9296d9a70941b25fcfe
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 953513
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block/953513
    additional property: OTSRecordURL
      type: PropertyValue
      value: https://artists.proofprofile.net/proofs/track/0fnUKzO7t6EsqJkACD4zfU.json
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0fnUKzO7t6EsqJkACD4zfU
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-06-13T12:47:07Z
    additional property: OTSCanonicalRecord
      type: PropertyValue
      value: {"copyright_id":"0x3be415cfda08db840a24d05880fc28316030976dca8ba9296d9a70941b25fcfe","isrc":"QM4DW1504337","name":"Wszystko Jedno","registered_at":"2026-06-01T23:27:03Z","spotify_id":"0fnUKzO7t6EsqJkACD4zfU","type":"track"}
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x3be415cfda08db840a24d05880fc28316030976dca8ba9296d9a70941b25fcfe. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0fnUKzO7t6EsqJkACD4zfU.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0fnUKzO7t6EsqJkACD4zfU.
      date published: 2026-06-13T12:47:07Z
      text: {"copyright_id":"0x3be415cfda08db840a24d05880fc28316030976dca8ba9296d9a70941b25fcfe","isrc":"QM4DW1504337","name":"Wszystko Jedno","registered_at":"2026-06-01T23:27:03Z","spotify_id":"0fnUKzO7t6EsqJkACD4zfU","type":"track"}
  track: Trójkąt
    type: MusicRecording
    duration: PT5M26S
    duration ms: 326923
    explicit: false
    by artist: Taco Hemingway
    in album: Trójkąt warszawski
      type: MusicAlbum
      date published: 2015-05-13
    isrc code: QM4DW1504338
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-04T07:07:25+00:00
    additional property: CopyrightChainExplorerURL
    additional property: OTSHash
    additional property: OTSBitcoinBlock
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSRecordURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSCanonicalRecord
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
  track: (Przerywnik)
  track: Mięso
  track: 900729
track: Wszystko Jedno
track: Marsz, Marsz
track: Szlugi I Kalafiory
track: O.N.A
track: Trójkąt
track: 900729
track: Kurtz
track: Mięso
track: (Przerywnik)
track: Fast Food
track: Tr∆jkąt
track: Dwa zero, dwa zero
track: YIN YANG
track: Yin Yang
track: Spóła
track: club2020
track: No weź
track: Vertigo
track: Malibu Barbie
track: Deszcz

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x790c3cacb0641e93d9332722fcbb629abc4d7f66831bf248b76047210572995d

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 953528

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block/953528

OTSRecordURL
type: PropertyValue
value: https://artists.proofprofile.net/proofs/track/3tjv9IhYkopfYHYqyXZ8yg.json

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3tjv9IhYkopfYHYqyXZ8yg

OTSTimestamp
type: PropertyValue
value: 2026-06-13T15:41:10Z

OTSCanonicalRecord
type: PropertyValue
value: {"copyright_id":"0x790c3cacb0641e93d9332722fcbb629abc4d7f66831bf248b76047210572995d","isrc":"QM4DW1504338","name":"Trójkąt","registered_at":"2026-06-04T07:07:25Z","spotify_id":"3tjv9IhYkopfYHYqyXZ8yg","type":"track"}

OTSVerifyInstructions
type: PropertyValue
value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790c3cacb0641e93d9332722fcbb629abc4d7f66831bf248b76047210572995d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3tjv9IhYkopfYHYqyXZ8yg.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3tjv9IhYkopfYHYqyXZ8yg.
date published: 2026-06-13T15:41:10Z
text: {"copyright_id":"0x790c3cacb0641e93d9332722fcbb629abc4d7f66831bf248b76047210572995d","isrc":"QM4DW1504338","name":"Trójkąt","registered_at":"2026-06-04T07:07:25Z","spotify_id":"3tjv9IhYkopfYHYqyXZ8yg","type":"track"}

(Przerywnik)
type: MusicRecording
duration: PT2M12S
duration ms: 132050
explicit: false
by artist: Taco Hemingway
in album: Trójkąt warszawski
  type: MusicAlbum
  date published: 2015-05-13
isrc code: QM4DW1504339
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T12:54:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x24bb43bc9ac6856dc07d455ad87a03e785c804a5b02ff0bccabdc52ea8c1c6ce
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2Kb6ae8MMTkAUaA3UjI37N.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2Kb6ae8MMTkAUaA3UjI37N
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x24bb43bc9ac6856dc07d455ad87a03e785c804a5b02ff0bccabdc52ea8c1c6ce. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2Kb6ae8MMTkAUaA3UjI37N.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2Kb6ae8MMTkAUaA3UjI37N.
  date published: 2026-06-13T12:47:07Z

Mięso
type: MusicRecording
duration: PT4M17S
duration ms: 257672
explicit: false
by artist: Taco Hemingway
by artist: Bebun
in album: Trójkąt warszawski
  type: MusicAlbum
  date published: 2015-05-13
isrc code: QM4DW1504340
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T07:55:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdd62b353c23dd309317a5f2265dd0bd9187cd769f333fdbd3732d841e8b38662
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2A63exoiATZZKbygJdDjQt.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2A63exoiATZZKbygJdDjQt
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdd62b353c23dd309317a5f2265dd0bd9187cd769f333fdbd3732d841e8b38662","isrc":"QM4DW1504340","name":"Mięso","registered_at":"2026-06-04T07:55:58Z","spotify_id":"2A63exoiATZZKbygJdDjQt","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xdd62b353c23dd309317a5f2265dd0bd9187cd769f333fdbd3732d841e8b38662. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2A63exoiATZZKbygJdDjQt.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2A63exoiATZZKbygJdDjQt.
  date published: 2026-06-13T12:47:07Z
  text: {"copyright_id":"0xdd62b353c23dd309317a5f2265dd0bd9187cd769f333fdbd3732d841e8b38662","isrc":"QM4DW1504340","name":"Mięso","registered_at":"2026-06-04T07:55:58Z","spotify_id":"2A63exoiATZZKbygJdDjQt","type":"track"}

900729
type: MusicRecording
duration: PT5M3S
duration ms: 303988
explicit: false
by artist: Taco Hemingway
in album: Trójkąt warszawski
  type: MusicAlbum
  date published: 2015-05-13
isrc code: QM4DW1504341
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T07:54:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6e2449d30d9ccff0108886ce8f6f5630f9eebc7dc4c8c18ab808f5719c3578fb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/18UuDPLv1vzx6SN6c5tgJ2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/18UuDPLv1vzx6SN6c5tgJ2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x6e2449d30d9ccff0108886ce8f6f5630f9eebc7dc4c8c18ab808f5719c3578fb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/18UuDPLv1vzx6SN6c5tgJ2.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/18UuDPLv1vzx6SN6c5tgJ2.
  date published: 2026-06-13T15:41:10Z

Wszystko Jedno
type: MusicRecording
duration: PT5M10S
duration ms: 310152
explicit: false
by artist: Taco Hemingway
in album: Trójkąt warszawski
  type: MusicAlbum
  date published: 2015-05-13
isrc code: QM4DW1504337
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-01T23:27:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3be415cfda08db840a24d05880fc28316030976dca8ba9296d9a70941b25fcfe
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0fnUKzO7t6EsqJkACD4zfU.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0fnUKzO7t6EsqJkACD4zfU
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3be415cfda08db840a24d05880fc28316030976dca8ba9296d9a70941b25fcfe","isrc":"QM4DW1504337","name":"Wszystko Jedno","registered_at":"2026-06-01T23:27:03Z","spotify_id":"0fnUKzO7t6EsqJkACD4zfU","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x3be415cfda08db840a24d05880fc28316030976dca8ba9296d9a70941b25fcfe. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0fnUKzO7t6EsqJkACD4zfU.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0fnUKzO7t6EsqJkACD4zfU.
  date published: 2026-06-13T12:47:07Z
  text: {"copyright_id":"0x3be415cfda08db840a24d05880fc28316030976dca8ba9296d9a70941b25fcfe","isrc":"QM4DW1504337","name":"Wszystko Jedno","registered_at":"2026-06-01T23:27:03Z","spotify_id":"0fnUKzO7t6EsqJkACD4zfU","type":"track"}

Marsz, Marsz
type: MusicRecording
duration: PT3M50S
duration ms: 230427
explicit: false
by artist: Taco Hemingway
in album: Trójkąt warszawski
  type: MusicAlbum
  date published: 2015-05-13
isrc code: QM4DW1504336
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T06:49:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x70463e0319f0b21d12e024d08ea7220115e50d490057a0023bee566a11b80347
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5tOVc7CGhjt5KsuDIreM5B.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5tOVc7CGhjt5KsuDIreM5B
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x70463e0319f0b21d12e024d08ea7220115e50d490057a0023bee566a11b80347","isrc":"QM4DW1504336","name":"Marsz, Marsz","registered_at":"2026-06-04T06:49:07Z","spotify_id":"5tOVc7CGhjt5KsuDIreM5B","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x70463e0319f0b21d12e024d08ea7220115e50d490057a0023bee566a11b80347. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5tOVc7CGhjt5KsuDIreM5B.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5tOVc7CGhjt5KsuDIreM5B.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x70463e0319f0b21d12e024d08ea7220115e50d490057a0023bee566a11b80347","isrc":"QM4DW1504336","name":"Marsz, Marsz","registered_at":"2026-06-04T06:49:07Z","spotify_id":"5tOVc7CGhjt5KsuDIreM5B","type":"track"}

Szlugi I Kalafiory
type: MusicRecording
duration: PT3M6S
duration ms: 186045
explicit: false
by artist: Taco Hemingway
in album: Trójkąt warszawski
  type: MusicAlbum
  date published: 2015-05-13
isrc code: QM4DW1504335
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T06:54:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x51fe09cb6a7246b5bec63b040769b07a2650a111d8cef68ef52ce3ddf0313cc8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/7kErF7jXHHvl0HefC09R4X.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7kErF7jXHHvl0HefC09R4X
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x51fe09cb6a7246b5bec63b040769b07a2650a111d8cef68ef52ce3ddf0313cc8","isrc":"QM4DW1504335","name":"Szlugi I Kalafiory","registered_at":"2026-06-04T06:54:25Z","spotify_id":"7kErF7jXHHvl0HefC09R4X","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x51fe09cb6a7246b5bec63b040769b07a2650a111d8cef68ef52ce3ddf0313cc8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7kErF7jXHHvl0HefC09R4X.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7kErF7jXHHvl0HefC09R4X.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x51fe09cb6a7246b5bec63b040769b07a2650a111d8cef68ef52ce3ddf0313cc8","isrc":"QM4DW1504335","name":"Szlugi I Kalafiory","registered_at":"2026-06-04T06:54:25Z","spotify_id":"7kErF7jXHHvl0HefC09R4X","type":"track"}

O.N.A
type: MusicRecording
duration: PT2M49S
duration ms: 169510
explicit: false
by artist: club2020
by artist: Taco Hemingway
by artist: Otsochodzi
by artist: schafter
by artist: luokhan
in album: club2020 Mixtape
  type: MusicAlbum
  date published: 2023-03-30
isrc code: PLI292200641
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T04:28:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd0b44217fd5364eef6fcd8d76a466ce5ce15c0cc69e418bb91719cc8a7d9c4ad
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6PTpSqcMDhLuAt0ljVrqZb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6PTpSqcMDhLuAt0ljVrqZb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xd0b44217fd5364eef6fcd8d76a466ce5ce15c0cc69e418bb91719cc8a7d9c4ad. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6PTpSqcMDhLuAt0ljVrqZb.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6PTpSqcMDhLuAt0ljVrqZb.
  date published: 2026-06-13T15:41:10Z

Trójkąt
type: MusicRecording
duration: PT5M26S
duration ms: 326923
explicit: false
by artist: Taco Hemingway
in album: Trójkąt warszawski
  type: MusicAlbum
  date published: 2015-05-13
isrc code: QM4DW1504338
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T07:07:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x790c3cacb0641e93d9332722fcbb629abc4d7f66831bf248b76047210572995d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3tjv9IhYkopfYHYqyXZ8yg.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3tjv9IhYkopfYHYqyXZ8yg
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x790c3cacb0641e93d9332722fcbb629abc4d7f66831bf248b76047210572995d","isrc":"QM4DW1504338","name":"Trójkąt","registered_at":"2026-06-04T07:07:25Z","spotify_id":"3tjv9IhYkopfYHYqyXZ8yg","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x790c3cacb0641e93d9332722fcbb629abc4d7f66831bf248b76047210572995d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3tjv9IhYkopfYHYqyXZ8yg.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3tjv9IhYkopfYHYqyXZ8yg.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x790c3cacb0641e93d9332722fcbb629abc4d7f66831bf248b76047210572995d","isrc":"QM4DW1504338","name":"Trójkąt","registered_at":"2026-06-04T07:07:25Z","spotify_id":"3tjv9IhYkopfYHYqyXZ8yg","type":"track"}

900729
type: MusicRecording
duration: PT5M3S
duration ms: 303988
explicit: false
by artist: Taco Hemingway
in album: Trójkąt warszawski
  type: MusicAlbum
  date published: 2015-05-13
isrc code: QM4DW1504341
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T07:54:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6e2449d30d9ccff0108886ce8f6f5630f9eebc7dc4c8c18ab808f5719c3578fb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/18UuDPLv1vzx6SN6c5tgJ2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/18UuDPLv1vzx6SN6c5tgJ2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x6e2449d30d9ccff0108886ce8f6f5630f9eebc7dc4c8c18ab808f5719c3578fb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/18UuDPLv1vzx6SN6c5tgJ2.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/18UuDPLv1vzx6SN6c5tgJ2.
  date published: 2026-06-13T15:41:10Z

Kurtz
type: MusicRecording
duration: PT4M15S
duration ms: 255720
explicit: false
by artist: Mata
by artist: Taco Hemingway
by artist: Kubi Producent
in album: Młody Matczak
  type: MusicAlbum
  date published: 2021-10-01
isrc code: PLS282100094
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T07:18:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x01e0881b8e4712c55ee3590b3572e2fa72719f73dd9dcdee45584d77bc6b836f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/72POxQEWLPOUo8VS5gzTQY.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/72POxQEWLPOUo8VS5gzTQY
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x01e0881b8e4712c55ee3590b3572e2fa72719f73dd9dcdee45584d77bc6b836f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/72POxQEWLPOUo8VS5gzTQY.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/72POxQEWLPOUo8VS5gzTQY.
  date published: 2026-06-13T12:47:07Z

Mięso
type: MusicRecording
duration: PT4M17S
duration ms: 257672
explicit: false
by artist: Taco Hemingway
by artist: Bebun
in album: Trójkąt warszawski
  type: MusicAlbum
  date published: 2015-05-13
isrc code: QM4DW1504340
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T07:55:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdd62b353c23dd309317a5f2265dd0bd9187cd769f333fdbd3732d841e8b38662
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2A63exoiATZZKbygJdDjQt.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2A63exoiATZZKbygJdDjQt
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdd62b353c23dd309317a5f2265dd0bd9187cd769f333fdbd3732d841e8b38662","isrc":"QM4DW1504340","name":"Mięso","registered_at":"2026-06-04T07:55:58Z","spotify_id":"2A63exoiATZZKbygJdDjQt","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xdd62b353c23dd309317a5f2265dd0bd9187cd769f333fdbd3732d841e8b38662. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2A63exoiATZZKbygJdDjQt.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2A63exoiATZZKbygJdDjQt.
  date published: 2026-06-13T12:47:07Z
  text: {"copyright_id":"0xdd62b353c23dd309317a5f2265dd0bd9187cd769f333fdbd3732d841e8b38662","isrc":"QM4DW1504340","name":"Mięso","registered_at":"2026-06-04T07:55:58Z","spotify_id":"2A63exoiATZZKbygJdDjQt","type":"track"}

(Przerywnik)
type: MusicRecording
duration: PT2M12S
duration ms: 132050
explicit: false
by artist: Taco Hemingway
in album: Trójkąt warszawski
  type: MusicAlbum
  date published: 2015-05-13
isrc code: QM4DW1504339
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T12:54:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x24bb43bc9ac6856dc07d455ad87a03e785c804a5b02ff0bccabdc52ea8c1c6ce
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2Kb6ae8MMTkAUaA3UjI37N.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2Kb6ae8MMTkAUaA3UjI37N
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x24bb43bc9ac6856dc07d455ad87a03e785c804a5b02ff0bccabdc52ea8c1c6ce. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2Kb6ae8MMTkAUaA3UjI37N.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2Kb6ae8MMTkAUaA3UjI37N.
  date published: 2026-06-13T12:47:07Z

Fast Food
type: MusicRecording
duration: PT4M3S
duration ms: 243373
explicit: false
by artist: Rasmentalism
by artist: Taco Hemingway
by artist: Rosalie.
in album: Tango
  type: MusicAlbum
  date published: 2018-01-26

Tr∆jkąt
type: MusicRecording
duration: PT3M18S
duration ms: 198726
explicit: false
by artist: club2020
by artist: Miły ATZ
by artist: HAŁASTRA
by artist: Dwa Sławy
by artist: Taco Hemingway
by artist: schafter
by artist: Gruby Mielzky
by artist: Pers
by artist: Szczyl
by artist: The Returners
in album: club2020 Mixtape
  type: MusicAlbum
  date published: 2023-03-30
isrc code: PLI292200637
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T04:43:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9aa660227416201c366ee5045d31b3b1e71c1bfa07e8afa676b103080ac473aa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2iT3LOgqJLiZ26EmwR2yaC.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2iT3LOgqJLiZ26EmwR2yaC
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9aa660227416201c366ee5045d31b3b1e71c1bfa07e8afa676b103080ac473aa","isrc":"PLI292200637","name":"Tr∆jkąt","registered_at":"2026-06-06T04:43:34Z","spotify_id":"2iT3LOgqJLiZ26EmwR2yaC","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x9aa660227416201c366ee5045d31b3b1e71c1bfa07e8afa676b103080ac473aa. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2iT3LOgqJLiZ26EmwR2yaC.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2iT3LOgqJLiZ26EmwR2yaC.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x9aa660227416201c366ee5045d31b3b1e71c1bfa07e8afa676b103080ac473aa","isrc":"PLI292200637","name":"Tr∆jkąt","registered_at":"2026-06-06T04:43:34Z","spotify_id":"2iT3LOgqJLiZ26EmwR2yaC","type":"track"}

Dwa zero, dwa zero
type: MusicRecording
duration: PT3M40S
duration ms: 220000
explicit: false
by artist: club2020
by artist: Astek
by artist: Taco Hemingway
by artist: Gruby Mielzky
by artist: Szczyl
by artist: @atutowy
by artist: The Returners
in album: club2020 Mixtape
  type: MusicAlbum
  date published: 2023-03-30
isrc code: PLI292200634
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T13:42:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa5203e437397ca76ab311192418c98144edc840717bcb18e079df8ca935f210e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953515
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1p5rSRHEij7glriBqWO34h.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1p5rSRHEij7glriBqWO34h
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa5203e437397ca76ab311192418c98144edc840717bcb18e079df8ca935f210e","isrc":"PLI292200634","name":"Dwa zero, dwa zero","registered_at":"2026-06-07T13:42:55Z","spotify_id":"1p5rSRHEij7glriBqWO34h","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xa5203e437397ca76ab311192418c98144edc840717bcb18e079df8ca935f210e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1p5rSRHEij7glriBqWO34h.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1p5rSRHEij7glriBqWO34h.
  date published: 2026-06-13T12:53:06Z
  text: {"copyright_id":"0xa5203e437397ca76ab311192418c98144edc840717bcb18e079df8ca935f210e","isrc":"PLI292200634","name":"Dwa zero, dwa zero","registered_at":"2026-06-07T13:42:55Z","spotify_id":"1p5rSRHEij7glriBqWO34h","type":"track"}

YIN YANG
type: MusicRecording
duration: PT3M54S
duration ms: 234893
explicit: false
by artist: Gedz
by artist: Taco Hemingway
by artist: Sokos
in album: STAMINA
  type: MusicAlbum
  date published: 2020-11-19
isrc code: PLUM72000553
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T11:43:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x58b08665b27327910add32754a9a648cb704c7bf1af9ce700e7b7d38b61cdaca
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6R8j20ELXQsaLTqOGbB48h.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6R8j20ELXQsaLTqOGbB48h
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x58b08665b27327910add32754a9a648cb704c7bf1af9ce700e7b7d38b61cdaca","isrc":"PLUM72000553","name":"YIN YANG","registered_at":"2026-06-06T11:43:35Z","spotify_id":"6R8j20ELXQsaLTqOGbB48h","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x58b08665b27327910add32754a9a648cb704c7bf1af9ce700e7b7d38b61cdaca. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6R8j20ELXQsaLTqOGbB48h.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6R8j20ELXQsaLTqOGbB48h.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x58b08665b27327910add32754a9a648cb704c7bf1af9ce700e7b7d38b61cdaca","isrc":"PLUM72000553","name":"YIN YANG","registered_at":"2026-06-06T11:43:35Z","spotify_id":"6R8j20ELXQsaLTqOGbB48h","type":"track"}

Yin Yang
type: MusicRecording
duration: PT3M54S
duration ms: 234893
explicit: false
by artist: Gedz
by artist: Taco Hemingway
by artist: Sokos
in album: Yin Yang
  type: MusicAlbum
  date published: 2020-11-04
isrc code: PLUM72000553
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T11:43:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x58b08665b27327910add32754a9a648cb704c7bf1af9ce700e7b7d38b61cdaca
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953515
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/46YVwgqmeHaO8eKyn0BqV3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/46YVwgqmeHaO8eKyn0BqV3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x58b08665b27327910add32754a9a648cb704c7bf1af9ce700e7b7d38b61cdaca","isrc":"PLUM72000553","name":"Yin Yang","registered_at":"2026-06-06T11:43:35Z","spotify_id":"46YVwgqmeHaO8eKyn0BqV3","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x58b08665b27327910add32754a9a648cb704c7bf1af9ce700e7b7d38b61cdaca. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/46YVwgqmeHaO8eKyn0BqV3.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/46YVwgqmeHaO8eKyn0BqV3.
  date published: 2026-06-13T12:53:06Z
  text: {"copyright_id":"0x58b08665b27327910add32754a9a648cb704c7bf1af9ce700e7b7d38b61cdaca","isrc":"PLUM72000553","name":"Yin Yang","registered_at":"2026-06-06T11:43:35Z","spotify_id":"46YVwgqmeHaO8eKyn0BqV3","type":"track"}

Spóła
type: MusicRecording
duration: PT4M6S
duration ms: 246683
explicit: false
by artist: Dwa Sławy
by artist: Gruby Mielzky
by artist: Pers
by artist: Otsochodzi
by artist: Taco Hemingway
by artist: The Returners
in album: I JEST TO MOŻLIWE mixtape
  type: MusicAlbum
  date published: 2023-05-18
isrc code: PLI292200687
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T17:30:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd2b7cd2f068fca48d06462854aab9cf1313e0200536c9f177e4bf061ac93ddb8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2C6cQ9aPfu3QMqMcjKEp1J.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2C6cQ9aPfu3QMqMcjKEp1J
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd2b7cd2f068fca48d06462854aab9cf1313e0200536c9f177e4bf061ac93ddb8","isrc":"PLI292200687","name":"Spóła","registered_at":"2026-06-06T17:30:27Z","spotify_id":"2C6cQ9aPfu3QMqMcjKEp1J","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xd2b7cd2f068fca48d06462854aab9cf1313e0200536c9f177e4bf061ac93ddb8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2C6cQ9aPfu3QMqMcjKEp1J.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2C6cQ9aPfu3QMqMcjKEp1J.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0xd2b7cd2f068fca48d06462854aab9cf1313e0200536c9f177e4bf061ac93ddb8","isrc":"PLI292200687","name":"Spóła","registered_at":"2026-06-06T17:30:27Z","spotify_id":"2C6cQ9aPfu3QMqMcjKEp1J","type":"track"}

club2020
type: MusicRecording
duration: PT2M4S
duration ms: 124687
explicit: false
by artist: club2020
by artist: Taco Hemingway
by artist: Oki
by artist: Otsochodzi
by artist: CatchUp
by artist: Young Igi
in album: club2020
  type: MusicAlbum
  date published: 2023-03-09
isrc code: PLI292200592
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T08:02:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe17fefc81a8de54b53fb08da13f5fd618366cc7079c3393a712e1175679e786a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3KJykNgI7TNt021kxuwmZN.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3KJykNgI7TNt021kxuwmZN
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xe17fefc81a8de54b53fb08da13f5fd618366cc7079c3393a712e1175679e786a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3KJykNgI7TNt021kxuwmZN.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3KJykNgI7TNt021kxuwmZN.
  date published: 2026-06-13T15:41:10Z

No weź
type: MusicRecording
duration: PT2M37S
duration ms: 157500
explicit: false
by artist: club2020
by artist: Oki
by artist: Young Igi
by artist: Young Leosia
by artist: Taco Hemingway
by artist: PSR
in album: club2020
  type: MusicAlbum
  date published: 2023-03-09
isrc code: PLI292200621
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T10:47:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc99f7666c20b85268448c84fb508f856f546aa1d5e4c3e28bd8be80adb880354
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6nKqdZTgE8RyTqwGx6Ow6f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6nKqdZTgE8RyTqwGx6Ow6f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc99f7666c20b85268448c84fb508f856f546aa1d5e4c3e28bd8be80adb880354","isrc":"PLI292200621","name":"No weź","registered_at":"2026-06-04T10:47:24Z","spotify_id":"6nKqdZTgE8RyTqwGx6Ow6f","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xc99f7666c20b85268448c84fb508f856f546aa1d5e4c3e28bd8be80adb880354. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6nKqdZTgE8RyTqwGx6Ow6f.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6nKqdZTgE8RyTqwGx6Ow6f.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0xc99f7666c20b85268448c84fb508f856f546aa1d5e4c3e28bd8be80adb880354","isrc":"PLI292200621","name":"No weź","registered_at":"2026-06-04T10:47:24Z","spotify_id":"6nKqdZTgE8RyTqwGx6Ow6f","type":"track"}

Vertigo
type: MusicRecording
duration: PT3M1S
duration ms: 181666
explicit: false
by artist: club2020
by artist: HAŁASTRA
by artist: Dwa Sławy
by artist: Margaret
by artist: Taco Hemingway
by artist: Odys
in album: club2020
  type: MusicAlbum
  date published: 2023-03-09
isrc code: PLI292200622
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T15:52:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4e9d76a12493b7bfc26c5a3a104e9f3cd97e408a9f4d386d2b054c138851349c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1IssVm8CjOsNkoaBBZrqGn.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1IssVm8CjOsNkoaBBZrqGn
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x4e9d76a12493b7bfc26c5a3a104e9f3cd97e408a9f4d386d2b054c138851349c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1IssVm8CjOsNkoaBBZrqGn.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1IssVm8CjOsNkoaBBZrqGn.
  date published: 2026-06-13T12:47:07Z

Malibu Barbie
type: MusicRecording
duration: PT3M9S
duration ms: 189295
explicit: false
by artist: club2020
by artist: Oki
by artist: Otsochodzi
by artist: Taco Hemingway
by artist: Young Leosia
by artist: Dwa Sławy
by artist: Gruby Mielzky
in album: club2020
  type: MusicAlbum
  date published: 2023-03-09
isrc code: PLI292200617
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-02T01:43:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x81a80ee82040885f0b6ea7b31b5c6004e693ad3bd594053e55cdd9a79e2b2c45
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/09bXpqLbPGZum6I4lDcnMX.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/09bXpqLbPGZum6I4lDcnMX
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x81a80ee82040885f0b6ea7b31b5c6004e693ad3bd594053e55cdd9a79e2b2c45","isrc":"PLI292200617","name":"Malibu Barbie","registered_at":"2026-06-02T01:43:02Z","spotify_id":"09bXpqLbPGZum6I4lDcnMX","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x81a80ee82040885f0b6ea7b31b5c6004e693ad3bd594053e55cdd9a79e2b2c45. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/09bXpqLbPGZum6I4lDcnMX.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/09bXpqLbPGZum6I4lDcnMX.
  date published: 2026-06-13T12:47:07Z
  text: {"copyright_id":"0x81a80ee82040885f0b6ea7b31b5c6004e693ad3bd594053e55cdd9a79e2b2c45","isrc":"PLI292200617","name":"Malibu Barbie","registered_at":"2026-06-02T01:43:02Z","spotify_id":"09bXpqLbPGZum6I4lDcnMX","type":"track"}

Deszcz
type: MusicRecording
duration: PT3M58S
duration ms: 238021
explicit: false
by artist: club2020
by artist: Margaret
by artist: Otsochodzi
by artist: Taco Hemingway
by artist: schafter
by artist: CatchUp
by artist: Dwa Sławy
by artist: Gruby Mielzky
in album: club2020
  type: MusicAlbum
  date published: 2023-03-09
isrc code: PLI292200624
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T14:58:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf5b27243ec6c624bd387e07072b0935d84f7574c438c03a6d42d74d44003ab61
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/33HgPbip48TE0sFcWtqX8u.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/33HgPbip48TE0sFcWtqX8u
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xf5b27243ec6c624bd387e07072b0935d84f7574c438c03a6d42d74d44003ab61. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/33HgPbip48TE0sFcWtqX8u.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/33HgPbip48TE0sFcWtqX8u.
  date published: 2026-06-13T15:41:10Z