Kacperczyk
type: MusicGroup
popularity: 58
followers: 142089
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x86e5b0d5a3993a56c61663824e10766cec639d92b295da69524951e57d00f936
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953408
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5946294d-8b03-4c59-9423-0dc540aeee4b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5946294d-8b03-4c59-9423-0dc540aeee4b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5946294d-8b03-4c59-9423-0dc540aeee4b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:28:13Z
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 → 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 0x86e5b0d5a3993a56c61663824e10766cec639d92b295da69524951e57d00f936. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5946294d-8b03-4c59-9423-0dc540aeee4b.json and https://artists.proofprofile.net/proofs/artist/5946294d-8b03-4c59-9423-0dc540aeee4b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
album: WIATR
  type: MusicAlbum
  date published: 2025-07-25
track: Do zobaczenia
  type: MusicRecording
  duration: PT2M23S
  duration ms: 143333
  explicit: false
  by artist: SB Maffija
  by artist: Kacperczyk
  in album: Hotel Maffija 2
    type: MusicAlbum
    date published: 2022-01-28
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-04T07:51:57+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb16dc0f8467b7d751268e050e3caa28fa47adfab4ac1d61c1f8bb764d5c73d44
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  additional property: OTSBitcoinBlock
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    type: PropertyValue
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  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/17GjgsmNDN6GD8WiUTQwkd.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/17GjgsmNDN6GD8WiUTQwkd
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T15:41:10Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
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  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 0xb16dc0f8467b7d751268e050e3caa28fa47adfab4ac1d61c1f8bb764d5c73d44. 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/17GjgsmNDN6GD8WiUTQwkd.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/17GjgsmNDN6GD8WiUTQwkd.
    date published: 2026-06-13T15:41:10Z
    text: {"copyright_id":"0xb16dc0f8467b7d751268e050e3caa28fa47adfab4ac1d61c1f8bb764d5c73d44","isrc":"PLS282200017","name":"Do zobaczenia","registered_at":"2026-06-04T07:51:57Z","spotify_id":"17GjgsmNDN6GD8WiUTQwkd","type":"track"}
track: Parapetówa (feat. Kacperczyk)
  type: MusicRecording
  duration: PT4M35S
  duration ms: 275666
  explicit: false
  by artist: SB Maffija
  by artist: White 2115
  by artist: Adi Nowak
  by artist: Janusz Walczuk
  by artist: Białas
  by artist: Fukaj
  by artist: SKUTE BOBO
  by artist: Beteo
  by artist: Kinny Zimmer
  by artist: Solar
  by artist: Lanek
  by artist: Bedoes 2115
  by artist: Jan-Rapowanie
  by artist: Kacperczyk
  in album: Hotel Maffija 2
    type: MusicAlbum
    date published: 2022-01-28
  isrc code: PLS282200001
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-04T07:11:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9b0d892c69ec82dafee463be26b1e90c4012b02ed4efa5d886efc48e41512abc
  additional property: OTSHash
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    type: PropertyValue
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953536
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/4xEf7mzOyMUXQKWCIaFXNx.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4xEf7mzOyMUXQKWCIaFXNx
  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSCanonicalRecord
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  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 0x9b0d892c69ec82dafee463be26b1e90c4012b02ed4efa5d886efc48e41512abc. 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/4xEf7mzOyMUXQKWCIaFXNx.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/4xEf7mzOyMUXQKWCIaFXNx.
    date published: 2026-06-13T17:25:41Z
    text: {"copyright_id":"0x9b0d892c69ec82dafee463be26b1e90c4012b02ed4efa5d886efc48e41512abc","isrc":"PLS282200001","name":"Parapetówa (feat. Kacperczyk)","registered_at":"2026-06-04T07:11:24Z","spotify_id":"4xEf7mzOyMUXQKWCIaFXNx","type":"track"}
track: A nie pamiętasz jak?
  type: MusicRecording
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  duration ms: 253989
  explicit: false
  by artist: SB Maffija
  by artist: Mata
  by artist: White 2115
  by artist: Jan-Rapowanie
  by artist: Janusz Walczuk
  by artist: Beteo
  by artist: Adi Nowak
  by artist: Kacperczyk
  in album: Hotel Maffija
    type: MusicAlbum
    date published: 2020-06-08
  isrc code: PLS282000087
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe932d2ef614b3bdd45eea68dbbcf1051c74940c72e26386583d3e2cf283481c8
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953513
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/7DYkRdC2YLLGAQWecpj6rz.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7DYkRdC2YLLGAQWecpj6rz
  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSCanonicalRecord
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  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 0xe932d2ef614b3bdd45eea68dbbcf1051c74940c72e26386583d3e2cf283481c8. 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/7DYkRdC2YLLGAQWecpj6rz.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/7DYkRdC2YLLGAQWecpj6rz.
    date published: 2026-06-13T12:47:07Z
    text: {"copyright_id":"0xe932d2ef614b3bdd45eea68dbbcf1051c74940c72e26386583d3e2cf283481c8","isrc":"PLS282000087","name":"A nie pamiętasz jak?","registered_at":"2026-06-04T07:18:47Z","spotify_id":"7DYkRdC2YLLGAQWecpj6rz","type":"track"}
track: Hotel Maffija 3
track: Jeep Wrangler
track: Przepis na dzień dobry
track: Nie ma raju bez węża
track: Postanowienia noworoczne
track: Pustka
track: WROOBEL DAJ TO GŁOŚNIEJ
track: To do wszystkich tych, którzy czuli się źle dziś
track: Śniadanie w hotelu
track: Baśnie braci Kacperczyk
track: Jeep Wrangler - Remix
track: Mała chmurka
track: Zimne morze
track: LTTN
track: KACPERCZYK #hot16challenge2

Hotel Maffija 3
type: MusicRecording
duration: PT4M57S
duration ms: 297253
explicit: false
by artist: SB Maffija
by artist: Kinny Zimmer
by artist: White 2115
by artist: Solar
by artist: Tomb
by artist: Janusz Walczuk
by artist: Lanek
by artist: Jacuś
by artist: po prostu Kajtek
by artist: Bryan
by artist: Fukaj
by artist: Szaran
by artist: Beteo
by artist: Białas
by artist: SHDØW
by artist: TONY2000
by artist: Michał Anioł
by artist: Kacperczyk
in album: Hotel Maffija 3
  type: MusicAlbum
  date published: 2023-08-11
isrc code: PLS282300084
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T09:55:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbd569de23e3d32074394a0b960dd1d25c873995d4013e8606cc6fc80601f2429
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4qjIIJiyq3IWhMHPHt1o2F.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4qjIIJiyq3IWhMHPHt1o2F
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSCanonicalRecord
  type: PropertyValue
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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 0xbd569de23e3d32074394a0b960dd1d25c873995d4013e8606cc6fc80601f2429. 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/4qjIIJiyq3IWhMHPHt1o2F.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/4qjIIJiyq3IWhMHPHt1o2F.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0xbd569de23e3d32074394a0b960dd1d25c873995d4013e8606cc6fc80601f2429","isrc":"PLS282300084","name":"Hotel Maffija 3","registered_at":"2026-06-04T09:55:51Z","spotify_id":"4qjIIJiyq3IWhMHPHt1o2F","type":"track"}

Jeep Wrangler
type: MusicRecording
duration: PT2M16S
duration ms: 136360
explicit: false
by artist: SB Maffija
by artist: Michał Anioł
by artist: Kacperczyk
in album: Hotel Maffija 3
  type: MusicAlbum
  date published: 2023-08-11
isrc code: PLS282300090
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T14:07:49+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x206c446612e13d856fcb089d7ca3f5b94495f497585f75de30cc7c3b0a0fe967
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4mEtWdoHH4qKiTOCdPZW4m.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4mEtWdoHH4qKiTOCdPZW4m
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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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 0x206c446612e13d856fcb089d7ca3f5b94495f497585f75de30cc7c3b0a0fe967. 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/4mEtWdoHH4qKiTOCdPZW4m.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/4mEtWdoHH4qKiTOCdPZW4m.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x206c446612e13d856fcb089d7ca3f5b94495f497585f75de30cc7c3b0a0fe967","isrc":"PLS282300090","name":"Jeep Wrangler","registered_at":"2026-06-04T14:07:49Z","spotify_id":"4mEtWdoHH4qKiTOCdPZW4m","type":"track"}

Przepis na dzień dobry
type: MusicRecording
duration: PT3M17S
duration ms: 197365
explicit: false
by artist: SB Maffija
by artist: Białas
by artist: Jan-Rapowanie
by artist: Lanek
by artist: Moli
by artist: Beteo
by artist: Kacperczyk
in album: Hotel Maffija
  type: MusicAlbum
  date published: 2020-06-08
isrc code: PLS282000084
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T13:05:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2ee83e0b51f23b22cdd9283bbeb899541169bdac856910a894fdfd7c041cf460
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4OsnCHFswSI3kTIVMLHIuy.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4OsnCHFswSI3kTIVMLHIuy
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2ee83e0b51f23b22cdd9283bbeb899541169bdac856910a894fdfd7c041cf460","isrc":"PLS282000084","name":"Przepis na dzień dobry","registered_at":"2026-06-04T13:05:52Z","spotify_id":"4OsnCHFswSI3kTIVMLHIuy","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 0x2ee83e0b51f23b22cdd9283bbeb899541169bdac856910a894fdfd7c041cf460. 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/4OsnCHFswSI3kTIVMLHIuy.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/4OsnCHFswSI3kTIVMLHIuy.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x2ee83e0b51f23b22cdd9283bbeb899541169bdac856910a894fdfd7c041cf460","isrc":"PLS282000084","name":"Przepis na dzień dobry","registered_at":"2026-06-04T13:05:52Z","spotify_id":"4OsnCHFswSI3kTIVMLHIuy","type":"track"}

Nie ma raju bez węża
type: MusicRecording
duration: PT3M25S
duration ms: 205874
explicit: false
by artist: SB Maffija
by artist: Kacperczyk
by artist: Jan-Rapowanie
by artist: Solar
by artist: Janusz Walczuk
by artist: Moli
by artist: Adi Nowak
in album: Hotel Maffija
  type: MusicAlbum
  date published: 2020-06-08
isrc code: PLS282000089
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T16:33:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe7fdb7d36be6399ac6f66e5428ccbd6c395aa213b90dc0e7898a1309c0bb3763
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/5nqRYxAkOCMNZadCOd9jhj.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5nqRYxAkOCMNZadCOd9jhj
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe7fdb7d36be6399ac6f66e5428ccbd6c395aa213b90dc0e7898a1309c0bb3763","isrc":"PLS282000089","name":"Nie ma raju bez węża","registered_at":"2026-06-04T16:33:21Z","spotify_id":"5nqRYxAkOCMNZadCOd9jhj","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 0xe7fdb7d36be6399ac6f66e5428ccbd6c395aa213b90dc0e7898a1309c0bb3763. 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/5nqRYxAkOCMNZadCOd9jhj.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/5nqRYxAkOCMNZadCOd9jhj.
  date published: 2026-06-13T12:47:07Z
  text: {"copyright_id":"0xe7fdb7d36be6399ac6f66e5428ccbd6c395aa213b90dc0e7898a1309c0bb3763","isrc":"PLS282000089","name":"Nie ma raju bez węża","registered_at":"2026-06-04T16:33:21Z","spotify_id":"5nqRYxAkOCMNZadCOd9jhj","type":"track"}

Postanowienia noworoczne
type: MusicRecording
duration: PT4M4S
duration ms: 244173
explicit: false
by artist: SB Maffija
by artist: Fukaj
by artist: Adi Nowak
by artist: Janusz Walczuk
by artist: White 2115
by artist: Solar
by artist: Pedro
by artist: francis
by artist: Kacperczyk
in album: Hotel Maffija 2
  type: MusicAlbum
  date published: 2022-01-28
isrc code: PLS282200014
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T09:17:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x73cfd9b078386ecca7ad5d6f09e01ed4fbdfde716999ef94fcb00f99cf070fcc
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/0t8dauICgAR2TCg36xo3od.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0t8dauICgAR2TCg36xo3od
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x73cfd9b078386ecca7ad5d6f09e01ed4fbdfde716999ef94fcb00f99cf070fcc","isrc":"PLS282200014","name":"Postanowienia noworoczne","registered_at":"2026-06-05T09:17:23Z","spotify_id":"0t8dauICgAR2TCg36xo3od","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 0x73cfd9b078386ecca7ad5d6f09e01ed4fbdfde716999ef94fcb00f99cf070fcc. 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/0t8dauICgAR2TCg36xo3od.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/0t8dauICgAR2TCg36xo3od.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x73cfd9b078386ecca7ad5d6f09e01ed4fbdfde716999ef94fcb00f99cf070fcc","isrc":"PLS282200014","name":"Postanowienia noworoczne","registered_at":"2026-06-05T09:17:23Z","spotify_id":"0t8dauICgAR2TCg36xo3od","type":"track"}

Pustka
type: MusicRecording
duration: PT2M29S
duration ms: 149186
explicit: false
by artist: SB Maffija
by artist: Sokół
by artist: Żabson
by artist: Kacperczyk
in album: Hotel Maffija 3
  type: MusicAlbum
  date published: 2023-08-11
isrc code: PLS282300096
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T09:14:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf1985b842c7922e1b2c354ba5a9007bad1c373ea1cc6382a61cb10da919f6b6c
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/1mOcbz85C1WkUCmH2GsNZU.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1mOcbz85C1WkUCmH2GsNZU
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 0xf1985b842c7922e1b2c354ba5a9007bad1c373ea1cc6382a61cb10da919f6b6c. 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/1mOcbz85C1WkUCmH2GsNZU.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/1mOcbz85C1WkUCmH2GsNZU.
  date published: 2026-06-13T12:47:07Z

WROOBEL DAJ TO GŁOŚNIEJ
type: MusicRecording
duration: PT3M47S
duration ms: 227933
explicit: false
by artist: SB Maffija
by artist: Białas
by artist: Adi Nowak
by artist: Janusz Walczuk
by artist: Fukaj
by artist: Kinny Zimmer
by artist: Lanek
by artist: Solar
by artist: Pedro
by artist: francis
by artist: Kacperczyk
in album: Hotel Maffija 2
  type: MusicAlbum
  date published: 2022-01-28
isrc code: PLS282200009
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T09:17:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2bf91d5134524fe20d017c831f4ef59d6a0442069ba45ecead738407a8627cbb
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/5CnhVCHuE1Q0xooVLIZAMs.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5CnhVCHuE1Q0xooVLIZAMs
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2bf91d5134524fe20d017c831f4ef59d6a0442069ba45ecead738407a8627cbb","isrc":"PLS282200009","name":"WROOBEL DAJ TO GŁOŚNIEJ","registered_at":"2026-06-05T09:17:27Z","spotify_id":"5CnhVCHuE1Q0xooVLIZAMs","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 0x2bf91d5134524fe20d017c831f4ef59d6a0442069ba45ecead738407a8627cbb. 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/5CnhVCHuE1Q0xooVLIZAMs.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/5CnhVCHuE1Q0xooVLIZAMs.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x2bf91d5134524fe20d017c831f4ef59d6a0442069ba45ecead738407a8627cbb","isrc":"PLS282200009","name":"WROOBEL DAJ TO GŁOŚNIEJ","registered_at":"2026-06-05T09:17:27Z","spotify_id":"5CnhVCHuE1Q0xooVLIZAMs","type":"track"}

To do wszystkich tych, którzy czuli się źle dziś
type: MusicRecording
duration: PT4M42S
duration ms: 282245
explicit: false
by artist: Szczyl
by artist: Magiera
by artist: Kacperczyk
in album: 8171
  type: MusicAlbum
  date published: 2022-10-28
isrc code: PLB382200162
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T02:39:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd651a6187968d0c72dcc003a1b2059723fba533ca20aa62b3394e0f2092709d9
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/5Mf0MEJKpohObn4DJztD9u.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5Mf0MEJKpohObn4DJztD9u
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd651a6187968d0c72dcc003a1b2059723fba533ca20aa62b3394e0f2092709d9","isrc":"PLB382200162","name":"To do wszystkich tych, którzy czuli się źle dziś","registered_at":"2026-06-07T02:39:26Z","spotify_id":"5Mf0MEJKpohObn4DJztD9u","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 0xd651a6187968d0c72dcc003a1b2059723fba533ca20aa62b3394e0f2092709d9. 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/5Mf0MEJKpohObn4DJztD9u.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/5Mf0MEJKpohObn4DJztD9u.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0xd651a6187968d0c72dcc003a1b2059723fba533ca20aa62b3394e0f2092709d9","isrc":"PLB382200162","name":"To do wszystkich tych, którzy czuli się źle dziś","registered_at":"2026-06-07T02:39:26Z","spotify_id":"5Mf0MEJKpohObn4DJztD9u","type":"track"}

Śniadanie w hotelu
type: MusicRecording
duration: PT3M42S
duration ms: 222280
explicit: false
by artist: SB Maffija
by artist: Janusz Walczuk
by artist: Adi Nowak
by artist: Jan-Rapowanie
by artist: Solar
by artist: Fukaj
by artist: Pedro
by artist: francis
by artist: Kacperczyk
in album: Hotel Maffija 2
  type: MusicAlbum
  date published: 2022-01-28
isrc code: PLS282200008
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T05:28:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa19fe4dce2d21d179c9be080c48bbb2f1f3a1018f682e7e051a63aecf029108f
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/36JOwuc66WJzqMDIr1H4pv.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/36JOwuc66WJzqMDIr1H4pv
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa19fe4dce2d21d179c9be080c48bbb2f1f3a1018f682e7e051a63aecf029108f","isrc":"PLS282200008","name":"Śniadanie w hotelu","registered_at":"2026-06-06T05:28:33Z","spotify_id":"36JOwuc66WJzqMDIr1H4pv","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 0xa19fe4dce2d21d179c9be080c48bbb2f1f3a1018f682e7e051a63aecf029108f. 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/36JOwuc66WJzqMDIr1H4pv.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/36JOwuc66WJzqMDIr1H4pv.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0xa19fe4dce2d21d179c9be080c48bbb2f1f3a1018f682e7e051a63aecf029108f","isrc":"PLS282200008","name":"Śniadanie w hotelu","registered_at":"2026-06-06T05:28:33Z","spotify_id":"36JOwuc66WJzqMDIr1H4pv","type":"track"}

Do zobaczenia
type: MusicRecording
duration: PT2M23S
duration ms: 143333
explicit: false
by artist: SB Maffija
by artist: Kacperczyk
in album: Hotel Maffija 2 (3 000 000 Deluxe)
  type: MusicAlbum
  date published: 2022-09-12
isrc code: PLS282200017
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T07:51:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb16dc0f8467b7d751268e050e3caa28fa47adfab4ac1d61c1f8bb764d5c73d44
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/7F53GafLz7meis4ATdp1e3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7F53GafLz7meis4ATdp1e3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb16dc0f8467b7d751268e050e3caa28fa47adfab4ac1d61c1f8bb764d5c73d44","isrc":"PLS282200017","name":"Do zobaczenia","registered_at":"2026-06-04T07:51:57Z","spotify_id":"7F53GafLz7meis4ATdp1e3","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 0xb16dc0f8467b7d751268e050e3caa28fa47adfab4ac1d61c1f8bb764d5c73d44. 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/7F53GafLz7meis4ATdp1e3.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/7F53GafLz7meis4ATdp1e3.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0xb16dc0f8467b7d751268e050e3caa28fa47adfab4ac1d61c1f8bb764d5c73d44","isrc":"PLS282200017","name":"Do zobaczenia","registered_at":"2026-06-04T07:51:57Z","spotify_id":"7F53GafLz7meis4ATdp1e3","type":"track"}

Baśnie braci Kacperczyk
type: MusicRecording
duration: PT2M27S
duration ms: 147453
explicit: false
by artist: SB Maffija
by artist: Kacperczyk
by artist: Adi Nowak
by artist: Białas
by artist: Janusz Walczuk
by artist: Lanek
in album: Hotel Maffija 2
  type: MusicAlbum
  date published: 2022-01-28
isrc code: PLS282200016
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T21:10:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x51d67b98edfac8b2c3df762aef7f9f221304b34592556086871d7a4b656282aa
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/7yV476QCBjw12ewX2g3VD0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7yV476QCBjw12ewX2g3VD0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x51d67b98edfac8b2c3df762aef7f9f221304b34592556086871d7a4b656282aa","isrc":"PLS282200016","name":"Baśnie braci Kacperczyk","registered_at":"2026-06-07T21:10:17Z","spotify_id":"7yV476QCBjw12ewX2g3VD0","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 0x51d67b98edfac8b2c3df762aef7f9f221304b34592556086871d7a4b656282aa. 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/7yV476QCBjw12ewX2g3VD0.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/7yV476QCBjw12ewX2g3VD0.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x51d67b98edfac8b2c3df762aef7f9f221304b34592556086871d7a4b656282aa","isrc":"PLS282200016","name":"Baśnie braci Kacperczyk","registered_at":"2026-06-07T21:10:17Z","spotify_id":"7yV476QCBjw12ewX2g3VD0","type":"track"}

Parapetówa (feat. Kacperczyk)
type: MusicRecording
duration: PT4M35S
duration ms: 275666
explicit: false
by artist: SB Maffija
by artist: White 2115
by artist: Adi Nowak
by artist: Janusz Walczuk
by artist: Białas
by artist: Fukaj
by artist: SKUTE BOBO
by artist: Beteo
by artist: Kinny Zimmer
by artist: Solar
by artist: Lanek
by artist: Bedoes 2115
by artist: Jan-Rapowanie
by artist: Kacperczyk
in album: Hotel Maffija 2 (3 000 000 Deluxe)
  type: MusicAlbum
  date published: 2022-09-12
isrc code: PLS282200001
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T07:11:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9b0d892c69ec82dafee463be26b1e90c4012b02ed4efa5d886efc48e41512abc
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/0RemIDocYKGyWug1LAP9Lo.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0RemIDocYKGyWug1LAP9Lo
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9b0d892c69ec82dafee463be26b1e90c4012b02ed4efa5d886efc48e41512abc","isrc":"PLS282200001","name":"Parapetówa (feat. Kacperczyk)","registered_at":"2026-06-04T07:11:24Z","spotify_id":"0RemIDocYKGyWug1LAP9Lo","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 0x9b0d892c69ec82dafee463be26b1e90c4012b02ed4efa5d886efc48e41512abc. 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/0RemIDocYKGyWug1LAP9Lo.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/0RemIDocYKGyWug1LAP9Lo.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x9b0d892c69ec82dafee463be26b1e90c4012b02ed4efa5d886efc48e41512abc","isrc":"PLS282200001","name":"Parapetówa (feat. Kacperczyk)","registered_at":"2026-06-04T07:11:24Z","spotify_id":"0RemIDocYKGyWug1LAP9Lo","type":"track"}

Jeep Wrangler - Remix
type: MusicRecording
duration: PT2M50S
duration ms: 170746
explicit: false
by artist: SB Maffija
by artist: po prostu Kajtek
by artist: Bryan
by artist: Jacuś
by artist: Wac Toja
by artist: Kacperczyk
in album: Hotel Maffija 3
  type: MusicAlbum
  date published: 2023-08-11
isrc code: PLS282300145
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T21:20:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6e8e1142466a02920929b77b7e21847b0c49f78bb933d671e4552724e7235e4a
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/5Wjg1tMSATZOlTdOTYnNcv.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5Wjg1tMSATZOlTdOTYnNcv
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6e8e1142466a02920929b77b7e21847b0c49f78bb933d671e4552724e7235e4a","isrc":"PLS282300145","name":"Jeep Wrangler - Remix","registered_at":"2026-06-08T21:20:33Z","spotify_id":"5Wjg1tMSATZOlTdOTYnNcv","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 0x6e8e1142466a02920929b77b7e21847b0c49f78bb933d671e4552724e7235e4a. 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/5Wjg1tMSATZOlTdOTYnNcv.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/5Wjg1tMSATZOlTdOTYnNcv.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x6e8e1142466a02920929b77b7e21847b0c49f78bb933d671e4552724e7235e4a","isrc":"PLS282300145","name":"Jeep Wrangler - Remix","registered_at":"2026-06-08T21:20:33Z","spotify_id":"5Wjg1tMSATZOlTdOTYnNcv","type":"track"}

Mała chmurka
type: MusicRecording
duration: PT3M6S
duration ms: 186666
explicit: false
by artist: SB Maffija
by artist: Solar
by artist: kuqe 2115
by artist: Lanek
by artist: Kacperczyk
in album: Hotel Maffija 2 (3 000 000 Deluxe)
  type: MusicAlbum
  date published: 2022-09-12
isrc code: PLS282200025
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T21:50:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd81e10b933fa7c8248f4038ab54b4ca8c2a5d55194fcae30d09c79f0b2daa47a
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/6dKn0RBt83TSdDdDRVnJQl.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6dKn0RBt83TSdDdDRVnJQl
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd81e10b933fa7c8248f4038ab54b4ca8c2a5d55194fcae30d09c79f0b2daa47a","isrc":"PLS282200025","name":"Mała chmurka","registered_at":"2026-06-08T21:50:49Z","spotify_id":"6dKn0RBt83TSdDdDRVnJQl","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 0xd81e10b933fa7c8248f4038ab54b4ca8c2a5d55194fcae30d09c79f0b2daa47a. 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/6dKn0RBt83TSdDdDRVnJQl.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/6dKn0RBt83TSdDdDRVnJQl.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0xd81e10b933fa7c8248f4038ab54b4ca8c2a5d55194fcae30d09c79f0b2daa47a","isrc":"PLS282200025","name":"Mała chmurka","registered_at":"2026-06-08T21:50:49Z","spotify_id":"6dKn0RBt83TSdDdDRVnJQl","type":"track"}

Zimne morze
type: MusicRecording
duration: PT3M41S
duration ms: 221333
explicit: false
by artist: SB Maffija
by artist: Jacuś
by artist: Fukaj
by artist: Flory
by artist: Lanek
by artist: Michał Anioł
by artist: Kacperczyk
in album: Hotel Maffija 3
  type: MusicAlbum
  date published: 2023-08-11
isrc code: PLS282300106
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T10:06:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9b889069df3a2d9c940926f89f461e7aa17501302bde8c9f223ae3a165787717
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/64n51QZG2A5VcTxtPwuRuS.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/64n51QZG2A5VcTxtPwuRuS
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9b889069df3a2d9c940926f89f461e7aa17501302bde8c9f223ae3a165787717","isrc":"PLS282300106","name":"Zimne morze","registered_at":"2026-06-08T10:06:34Z","spotify_id":"64n51QZG2A5VcTxtPwuRuS","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 0x9b889069df3a2d9c940926f89f461e7aa17501302bde8c9f223ae3a165787717. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/64n51QZG2A5VcTxtPwuRuS.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/64n51QZG2A5VcTxtPwuRuS.
  date published: 2026-06-13T13:32:09Z
  text: {"copyright_id":"0x9b889069df3a2d9c940926f89f461e7aa17501302bde8c9f223ae3a165787717","isrc":"PLS282300106","name":"Zimne morze","registered_at":"2026-06-08T10:06:34Z","spotify_id":"64n51QZG2A5VcTxtPwuRuS","type":"track"}

LTTN
type: MusicRecording
duration: PT2M32S
duration ms: 152000
explicit: false
by artist: SB Maffija
by artist: Bedoes 2115
by artist: Kacperczyk
in album: Hotel Maffija
  type: MusicAlbum
  date published: 2020-06-08
isrc code: PLS282000091
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T15:01:47+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd5c31f4cdc85847ddbc9f298531e307e82d3d0aaf936989576e16ffc9a58d0bd
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/1qFbD6cqiXyLRXFDGMe22N.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1qFbD6cqiXyLRXFDGMe22N
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 0xd5c31f4cdc85847ddbc9f298531e307e82d3d0aaf936989576e16ffc9a58d0bd. 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/1qFbD6cqiXyLRXFDGMe22N.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/1qFbD6cqiXyLRXFDGMe22N.
  date published: 2026-06-13T15:41:10Z

KACPERCZYK #hot16challenge2
type: MusicRecording
duration: PT2M23S
duration ms: 143617
explicit: false
by artist: SB Maffija
by artist: Kacperczyk
in album: #Hot16Challenge2
  type: MusicAlbum
  date published: 2020-05-25
isrc code: PLI362707910
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T07:10:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe69bfcfdaeda8125ccf239af4cc909f09b9a818aecb7a085be5d405affebc66c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/33NKbCCLnKJ3AYUEoQ6FB3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/33NKbCCLnKJ3AYUEoQ6FB3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe69bfcfdaeda8125ccf239af4cc909f09b9a818aecb7a085be5d405affebc66c","isrc":"PLI362707910","name":"KACPERCZYK #hot16challenge2","registered_at":"2026-06-21T07:10:56Z","spotify_id":"33NKbCCLnKJ3AYUEoQ6FB3","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 0xe69bfcfdaeda8125ccf239af4cc909f09b9a818aecb7a085be5d405affebc66c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/33NKbCCLnKJ3AYUEoQ6FB3.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/33NKbCCLnKJ3AYUEoQ6FB3.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0xe69bfcfdaeda8125ccf239af4cc909f09b9a818aecb7a085be5d405affebc66c","isrc":"PLI362707910","name":"KACPERCZYK #hot16challenge2","registered_at":"2026-06-21T07:10:56Z","spotify_id":"33NKbCCLnKJ3AYUEoQ6FB3","type":"track"}