popiół to kot
type: MusicGroup
genre: horrorcore
popularity: 37
followers: 5546
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2b809aaf7f2c702c05afe5c8e076dab47b1d42bbb965ad6b0b8fc9a89c19117f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/93262e05-c610-4f46-84be-66861ab56146.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/93262e05-c610-4f46-84be-66861ab56146.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/93262e05-c610-4f46-84be-66861ab56146
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2b809aaf7f2c702c05afe5c8e076dab47b1d42bbb965ad6b0b8fc9a89c19117f","name":"popiół to kot","registered_at":"2026-06-12T04:47:26Z","symbol":"NIM0191252","token_address":"0x2c41d9713a02419c900beb754b46c10bd7cf4196","type":"artist","uuid":"93262e05-c610-4f46-84be-66861ab56146"}
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 0x2b809aaf7f2c702c05afe5c8e076dab47b1d42bbb965ad6b0b8fc9a89c19117f. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/93262e05-c610-4f46-84be-66861ab56146.json and https://artists.proofprofile.net/proofs/artist/93262e05-c610-4f46-84be-66861ab56146.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x2b809aaf7f2c702c05afe5c8e076dab47b1d42bbb965ad6b0b8fc9a89c19117f","name":"popiół to kot","registered_at":"2026-06-12T04:47:26Z","symbol":"NIM0191252","token_address":"0x2c41d9713a02419c900beb754b46c10bd7cf4196","type":"artist","uuid":"93262e05-c610-4f46-84be-66861ab56146"}
album: GRAVE TAPE
  type: MusicAlbum
  date published: 2022-12-16
  track: Hellboy
    type: MusicRecording
    duration: PT2M49S
    duration ms: 169124
    explicit: false
    by artist: popiół to kot
    by artist: Leny Da Fam
    in album: GRAVE TAPE
      type: MusicAlbum
      date published: 2022-12-16
    isrc code: PLM402208101
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-18T22:35:43+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3492edbf68a3380587bb8ff57434d4d37120f11ff3d111cfa45f405a80f67b24
    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/51uFbQh666cOQKhAmdmIhP.json
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/51uFbQh666cOQKhAmdmIhP
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T03:55:08Z
    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 0x3492edbf68a3380587bb8ff57434d4d37120f11ff3d111cfa45f405a80f67b24. 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/51uFbQh666cOQKhAmdmIhP.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/51uFbQh666cOQKhAmdmIhP.
      date published: 2026-07-02T03:55:08Z
  track: Tundra
    type: MusicRecording
    duration: PT2M39S
    duration ms: 159183
    explicit: false
    by artist: popiół to kot
    by artist: Leny Da Fam
    in album: GRAVE TAPE
      type: MusicAlbum
      date published: 2022-12-16
    isrc code: PLM402208103
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-23T17:55:55+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd789d0273b499bd178dd87e9f5f7a1a33549cf4258afbf40c6317253e59b1edb
    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/56WO8FZMbDG2CJKNZBTHux.json
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/56WO8FZMbDG2CJKNZBTHux
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T03:55:08Z
    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 0xd789d0273b499bd178dd87e9f5f7a1a33549cf4258afbf40c6317253e59b1edb. 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/56WO8FZMbDG2CJKNZBTHux.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/56WO8FZMbDG2CJKNZBTHux.
      date published: 2026-07-02T03:55:08Z
  track: Niechciane psy
    type: MusicRecording
    duration: PT3M29S
    duration ms: 209565
    explicit: false
    by artist: popiół to kot
    by artist: Leny Da Fam
    in album: GRAVE TAPE
      type: MusicAlbum
      date published: 2022-12-16
    isrc code: PLM402208102
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-19T18:34:58+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7f19285006fa84d6c35df1531eb0f17c04227d2c9285dab5907136703ffc4634
    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/7Dwzy9PbhMhqPMmnXmxxAs.json
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7Dwzy9PbhMhqPMmnXmxxAs
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T03:55:08Z
    additional property: OTSCanonicalRecord
      type: PropertyValue
      value: {"copyright_id":"0x7f19285006fa84d6c35df1531eb0f17c04227d2c9285dab5907136703ffc4634","isrc":"PLM402208102","name":"Niechciane psy","registered_at":"2026-06-19T18:34:58Z","spotify_id":"7Dwzy9PbhMhqPMmnXmxxAs","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 0x7f19285006fa84d6c35df1531eb0f17c04227d2c9285dab5907136703ffc4634. 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/7Dwzy9PbhMhqPMmnXmxxAs.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/7Dwzy9PbhMhqPMmnXmxxAs.
      date published: 2026-07-02T03:55:08Z
      text: {"copyright_id":"0x7f19285006fa84d6c35df1531eb0f17c04227d2c9285dab5907136703ffc4634","isrc":"PLM402208102","name":"Niechciane psy","registered_at":"2026-06-19T18:34:58Z","spotify_id":"7Dwzy9PbhMhqPMmnXmxxAs","type":"track"}
  track: Nie mogę spać
    type: MusicRecording
    duration: PT2M24S
    duration ms: 144857
    explicit: false
    by artist: popiół to kot
    by artist: Leny Da Fam
    in album: GRAVE TAPE
      type: MusicAlbum
      date published: 2022-12-16
    isrc code: PLM402208104
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-26T02:41:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0b5dc0f750c0bc1bb644cfbd08d148e4faccd6234681ad81ae2e9bd1e68e4157
    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: Ściek
  track: Nie otwieraj pyska
  track: Biała śmierć
  track: Aokighara
  track: Chcę odlecieć
  track: R.I.P
track: Biała śmierć
track: Hellboy
track: Aokighara
track: Niechciane psy
track: Ściek
track: Nie otwieraj pyska
track: Chcę odlecieć
track: Tundra
track: Nie mogę spać
track: R.I.P
track: BDF Cypher 22
track: Freak
track: Cisza
track: JESTEM MROK
track: Diabły
track: Intro
track: Jestem przeklęty
track: Karty na stół

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956349

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block/956349

OTSRecordURL
type: PropertyValue
value: https://artists.proofprofile.net/proofs/track/4MrvNkPU9zSTOxtvqeQ1I2.json

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4MrvNkPU9zSTOxtvqeQ1I2

OTSTimestamp
type: PropertyValue
value: 2026-07-02T11:34:59Z

OTSCanonicalRecord
type: PropertyValue
value: {"copyright_id":"0x0b5dc0f750c0bc1bb644cfbd08d148e4faccd6234681ad81ae2e9bd1e68e4157","isrc":"PLM402208104","name":"Nie mogę spać","registered_at":"2026-06-26T02:41:08Z","spotify_id":"4MrvNkPU9zSTOxtvqeQ1I2","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 0x0b5dc0f750c0bc1bb644cfbd08d148e4faccd6234681ad81ae2e9bd1e68e4157. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4MrvNkPU9zSTOxtvqeQ1I2.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/4MrvNkPU9zSTOxtvqeQ1I2.
date published: 2026-07-02T11:34:59Z
text: {"copyright_id":"0x0b5dc0f750c0bc1bb644cfbd08d148e4faccd6234681ad81ae2e9bd1e68e4157","isrc":"PLM402208104","name":"Nie mogę spać","registered_at":"2026-06-26T02:41:08Z","spotify_id":"4MrvNkPU9zSTOxtvqeQ1I2","type":"track"}

Ściek
type: MusicRecording
duration: PT2M21S
duration ms: 141686
explicit: false
by artist: popiół to kot
by artist: Leny Da Fam
in album: GRAVE TAPE
  type: MusicAlbum
  date published: 2022-12-16
isrc code: PLM402208105
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T11:43:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x12038f5d63559d4eeecb165bc192519b00d10f5901b53c40de71609854f1ca62
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/31lLUlHbzjoxGwNRzxE5LB.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/31lLUlHbzjoxGwNRzxE5LB
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x12038f5d63559d4eeecb165bc192519b00d10f5901b53c40de71609854f1ca62","isrc":"PLM402208105","name":"Ściek","registered_at":"2026-06-21T11:43:31Z","spotify_id":"31lLUlHbzjoxGwNRzxE5LB","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 0x12038f5d63559d4eeecb165bc192519b00d10f5901b53c40de71609854f1ca62. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/31lLUlHbzjoxGwNRzxE5LB.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/31lLUlHbzjoxGwNRzxE5LB.
  date published: 2026-07-02T03:30:09Z
  text: {"copyright_id":"0x12038f5d63559d4eeecb165bc192519b00d10f5901b53c40de71609854f1ca62","isrc":"PLM402208105","name":"Ściek","registered_at":"2026-06-21T11:43:31Z","spotify_id":"31lLUlHbzjoxGwNRzxE5LB","type":"track"}

Nie otwieraj pyska
type: MusicRecording
duration: PT2M47S
duration ms: 167441
explicit: false
by artist: popiół to kot
by artist: Leny Da Fam
in album: GRAVE TAPE
  type: MusicAlbum
  date published: 2022-12-16
isrc code: PLM402208106
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T02:46:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x47ba68765ecc89a43c2714d2b144fa31e80233d551680f18822957ef5862a155
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0VCddPSLjKmb81CDbw6D75.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0VCddPSLjKmb81CDbw6D75
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x47ba68765ecc89a43c2714d2b144fa31e80233d551680f18822957ef5862a155","isrc":"PLM402208106","name":"Nie otwieraj pyska","registered_at":"2026-06-26T02:46:11Z","spotify_id":"0VCddPSLjKmb81CDbw6D75","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 0x47ba68765ecc89a43c2714d2b144fa31e80233d551680f18822957ef5862a155. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0VCddPSLjKmb81CDbw6D75.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/0VCddPSLjKmb81CDbw6D75.
  date published: 2026-07-02T05:09:12Z
  text: {"copyright_id":"0x47ba68765ecc89a43c2714d2b144fa31e80233d551680f18822957ef5862a155","isrc":"PLM402208106","name":"Nie otwieraj pyska","registered_at":"2026-06-26T02:46:11Z","spotify_id":"0VCddPSLjKmb81CDbw6D75","type":"track"}

Biała śmierć
type: MusicRecording
duration: PT3M13S
duration ms: 193788
explicit: false
by artist: popiół to kot
by artist: Leny Da Fam
by artist: Profesor Smok
in album: GRAVE TAPE
  type: MusicAlbum
  date published: 2022-12-16
isrc code: PLM402208107
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T23:46:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8c38a6b80fcb669aaa236574bbc6d5b9ed77d0953d5fc68398c5a36429bccbbf
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/7GNIZUdMarIZRGSB5XuN6X.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7GNIZUdMarIZRGSB5XuN6X
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8c38a6b80fcb669aaa236574bbc6d5b9ed77d0953d5fc68398c5a36429bccbbf","isrc":"PLM402208107","name":"Biała śmierć","registered_at":"2026-06-08T23:46:15Z","spotify_id":"7GNIZUdMarIZRGSB5XuN6X","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 0x8c38a6b80fcb669aaa236574bbc6d5b9ed77d0953d5fc68398c5a36429bccbbf. 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/7GNIZUdMarIZRGSB5XuN6X.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/7GNIZUdMarIZRGSB5XuN6X.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x8c38a6b80fcb669aaa236574bbc6d5b9ed77d0953d5fc68398c5a36429bccbbf","isrc":"PLM402208107","name":"Biała śmierć","registered_at":"2026-06-08T23:46:15Z","spotify_id":"7GNIZUdMarIZRGSB5XuN6X","type":"track"}

Aokighara
type: MusicRecording
duration: PT2M53S
duration ms: 173691
explicit: false
by artist: popiół to kot
by artist: Leny Da Fam
in album: GRAVE TAPE
  type: MusicAlbum
  date published: 2022-12-16
isrc code: PLM402208108
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T07:02:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb8cda573f32392fa17320e5bd7482e101f9b3e881c3eb5fa26f0c57322cc4722
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2n4iBOHxtnHN75p9d2P7nG.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2n4iBOHxtnHN75p9d2P7nG
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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 0xb8cda573f32392fa17320e5bd7482e101f9b3e881c3eb5fa26f0c57322cc4722. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2n4iBOHxtnHN75p9d2P7nG.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/2n4iBOHxtnHN75p9d2P7nG.
  date published: 2026-07-02T03:30:09Z

Chcę odlecieć
type: MusicRecording
duration: PT3M7S
duration ms: 187500
explicit: false
by artist: popiół to kot
by artist: Leny Da Fam
by artist: Ambro Fiszoski
in album: GRAVE TAPE
  type: MusicAlbum
  date published: 2022-12-16
isrc code: PLM402208109
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T18:56:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa0cae6e401af78dc5d1c81ce054e51c34dbe9b54bc9f16a2ae75fa025b894e5b
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/3Dls6Xg80XMvDOufnJXOWF.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3Dls6Xg80XMvDOufnJXOWF
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa0cae6e401af78dc5d1c81ce054e51c34dbe9b54bc9f16a2ae75fa025b894e5b","isrc":"PLM402208109","name":"Chcę odlecieć","registered_at":"2026-06-21T18:56:35Z","spotify_id":"3Dls6Xg80XMvDOufnJXOWF","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 0xa0cae6e401af78dc5d1c81ce054e51c34dbe9b54bc9f16a2ae75fa025b894e5b. 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/3Dls6Xg80XMvDOufnJXOWF.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/3Dls6Xg80XMvDOufnJXOWF.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0xa0cae6e401af78dc5d1c81ce054e51c34dbe9b54bc9f16a2ae75fa025b894e5b","isrc":"PLM402208109","name":"Chcę odlecieć","registered_at":"2026-06-21T18:56:35Z","spotify_id":"3Dls6Xg80XMvDOufnJXOWF","type":"track"}

R.I.P
type: MusicRecording
duration: PT3M23S
duration ms: 203907
explicit: false
by artist: popiół to kot
by artist: Leny Da Fam
in album: GRAVE TAPE
  type: MusicAlbum
  date published: 2022-12-16
isrc code: PLM402208110
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T02:46:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xac05f5d6934739e238ede0073ebe7694eb5f934b374a3ca19f0c401dc56da5aa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1pA0dKbc2ix6XfU9js8sAJ.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1pA0dKbc2ix6XfU9js8sAJ
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
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 0xac05f5d6934739e238ede0073ebe7694eb5f934b374a3ca19f0c401dc56da5aa. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1pA0dKbc2ix6XfU9js8sAJ.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/1pA0dKbc2ix6XfU9js8sAJ.
  date published: 2026-07-02T05:09:12Z

Biała śmierć
type: MusicRecording
duration: PT3M13S
duration ms: 193788
explicit: false
by artist: popiół to kot
by artist: Leny Da Fam
by artist: Profesor Smok
in album: GRAVE TAPE
  type: MusicAlbum
  date published: 2022-12-16
isrc code: PLM402208107
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T23:46:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8c38a6b80fcb669aaa236574bbc6d5b9ed77d0953d5fc68398c5a36429bccbbf
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/7GNIZUdMarIZRGSB5XuN6X.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7GNIZUdMarIZRGSB5XuN6X
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8c38a6b80fcb669aaa236574bbc6d5b9ed77d0953d5fc68398c5a36429bccbbf","isrc":"PLM402208107","name":"Biała śmierć","registered_at":"2026-06-08T23:46:15Z","spotify_id":"7GNIZUdMarIZRGSB5XuN6X","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 0x8c38a6b80fcb669aaa236574bbc6d5b9ed77d0953d5fc68398c5a36429bccbbf. 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/7GNIZUdMarIZRGSB5XuN6X.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/7GNIZUdMarIZRGSB5XuN6X.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x8c38a6b80fcb669aaa236574bbc6d5b9ed77d0953d5fc68398c5a36429bccbbf","isrc":"PLM402208107","name":"Biała śmierć","registered_at":"2026-06-08T23:46:15Z","spotify_id":"7GNIZUdMarIZRGSB5XuN6X","type":"track"}

Hellboy
type: MusicRecording
duration: PT2M49S
duration ms: 169124
explicit: false
by artist: popiół to kot
by artist: Leny Da Fam
in album: GRAVE TAPE
  type: MusicAlbum
  date published: 2022-12-16
isrc code: PLM402208101
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T22:35:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3492edbf68a3380587bb8ff57434d4d37120f11ff3d111cfa45f405a80f67b24
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/51uFbQh666cOQKhAmdmIhP.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/51uFbQh666cOQKhAmdmIhP
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0x3492edbf68a3380587bb8ff57434d4d37120f11ff3d111cfa45f405a80f67b24. 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/51uFbQh666cOQKhAmdmIhP.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/51uFbQh666cOQKhAmdmIhP.
  date published: 2026-07-02T03:55:08Z

Aokighara
type: MusicRecording
duration: PT2M53S
duration ms: 173691
explicit: false
by artist: popiół to kot
by artist: Leny Da Fam
in album: GRAVE TAPE
  type: MusicAlbum
  date published: 2022-12-16
isrc code: PLM402208108
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T07:02:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb8cda573f32392fa17320e5bd7482e101f9b3e881c3eb5fa26f0c57322cc4722
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2n4iBOHxtnHN75p9d2P7nG.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2n4iBOHxtnHN75p9d2P7nG
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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 0xb8cda573f32392fa17320e5bd7482e101f9b3e881c3eb5fa26f0c57322cc4722. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2n4iBOHxtnHN75p9d2P7nG.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/2n4iBOHxtnHN75p9d2P7nG.
  date published: 2026-07-02T03:30:09Z

Niechciane psy
type: MusicRecording
duration: PT3M29S
duration ms: 209565
explicit: false
by artist: popiół to kot
by artist: Leny Da Fam
in album: GRAVE TAPE
  type: MusicAlbum
  date published: 2022-12-16
isrc code: PLM402208102
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T18:34:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7f19285006fa84d6c35df1531eb0f17c04227d2c9285dab5907136703ffc4634
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/7Dwzy9PbhMhqPMmnXmxxAs.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7Dwzy9PbhMhqPMmnXmxxAs
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7f19285006fa84d6c35df1531eb0f17c04227d2c9285dab5907136703ffc4634","isrc":"PLM402208102","name":"Niechciane psy","registered_at":"2026-06-19T18:34:58Z","spotify_id":"7Dwzy9PbhMhqPMmnXmxxAs","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 0x7f19285006fa84d6c35df1531eb0f17c04227d2c9285dab5907136703ffc4634. 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/7Dwzy9PbhMhqPMmnXmxxAs.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/7Dwzy9PbhMhqPMmnXmxxAs.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x7f19285006fa84d6c35df1531eb0f17c04227d2c9285dab5907136703ffc4634","isrc":"PLM402208102","name":"Niechciane psy","registered_at":"2026-06-19T18:34:58Z","spotify_id":"7Dwzy9PbhMhqPMmnXmxxAs","type":"track"}

Ściek
type: MusicRecording
duration: PT2M21S
duration ms: 141686
explicit: false
by artist: popiół to kot
by artist: Leny Da Fam
in album: GRAVE TAPE
  type: MusicAlbum
  date published: 2022-12-16
isrc code: PLM402208105
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T11:43:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x12038f5d63559d4eeecb165bc192519b00d10f5901b53c40de71609854f1ca62
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/31lLUlHbzjoxGwNRzxE5LB.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/31lLUlHbzjoxGwNRzxE5LB
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x12038f5d63559d4eeecb165bc192519b00d10f5901b53c40de71609854f1ca62","isrc":"PLM402208105","name":"Ściek","registered_at":"2026-06-21T11:43:31Z","spotify_id":"31lLUlHbzjoxGwNRzxE5LB","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 0x12038f5d63559d4eeecb165bc192519b00d10f5901b53c40de71609854f1ca62. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/31lLUlHbzjoxGwNRzxE5LB.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/31lLUlHbzjoxGwNRzxE5LB.
  date published: 2026-07-02T03:30:09Z
  text: {"copyright_id":"0x12038f5d63559d4eeecb165bc192519b00d10f5901b53c40de71609854f1ca62","isrc":"PLM402208105","name":"Ściek","registered_at":"2026-06-21T11:43:31Z","spotify_id":"31lLUlHbzjoxGwNRzxE5LB","type":"track"}

Nie otwieraj pyska
type: MusicRecording
duration: PT2M47S
duration ms: 167441
explicit: false
by artist: popiół to kot
by artist: Leny Da Fam
in album: GRAVE TAPE
  type: MusicAlbum
  date published: 2022-12-16
isrc code: PLM402208106
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T02:46:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x47ba68765ecc89a43c2714d2b144fa31e80233d551680f18822957ef5862a155
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0VCddPSLjKmb81CDbw6D75.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0VCddPSLjKmb81CDbw6D75
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x47ba68765ecc89a43c2714d2b144fa31e80233d551680f18822957ef5862a155","isrc":"PLM402208106","name":"Nie otwieraj pyska","registered_at":"2026-06-26T02:46:11Z","spotify_id":"0VCddPSLjKmb81CDbw6D75","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 0x47ba68765ecc89a43c2714d2b144fa31e80233d551680f18822957ef5862a155. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0VCddPSLjKmb81CDbw6D75.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/0VCddPSLjKmb81CDbw6D75.
  date published: 2026-07-02T05:09:12Z
  text: {"copyright_id":"0x47ba68765ecc89a43c2714d2b144fa31e80233d551680f18822957ef5862a155","isrc":"PLM402208106","name":"Nie otwieraj pyska","registered_at":"2026-06-26T02:46:11Z","spotify_id":"0VCddPSLjKmb81CDbw6D75","type":"track"}

Chcę odlecieć
type: MusicRecording
duration: PT3M7S
duration ms: 187500
explicit: false
by artist: popiół to kot
by artist: Leny Da Fam
by artist: Ambro Fiszoski
in album: GRAVE TAPE
  type: MusicAlbum
  date published: 2022-12-16
isrc code: PLM402208109
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T18:56:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa0cae6e401af78dc5d1c81ce054e51c34dbe9b54bc9f16a2ae75fa025b894e5b
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/3Dls6Xg80XMvDOufnJXOWF.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3Dls6Xg80XMvDOufnJXOWF
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa0cae6e401af78dc5d1c81ce054e51c34dbe9b54bc9f16a2ae75fa025b894e5b","isrc":"PLM402208109","name":"Chcę odlecieć","registered_at":"2026-06-21T18:56:35Z","spotify_id":"3Dls6Xg80XMvDOufnJXOWF","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 0xa0cae6e401af78dc5d1c81ce054e51c34dbe9b54bc9f16a2ae75fa025b894e5b. 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/3Dls6Xg80XMvDOufnJXOWF.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/3Dls6Xg80XMvDOufnJXOWF.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0xa0cae6e401af78dc5d1c81ce054e51c34dbe9b54bc9f16a2ae75fa025b894e5b","isrc":"PLM402208109","name":"Chcę odlecieć","registered_at":"2026-06-21T18:56:35Z","spotify_id":"3Dls6Xg80XMvDOufnJXOWF","type":"track"}

Tundra
type: MusicRecording
duration: PT2M39S
duration ms: 159183
explicit: false
by artist: popiół to kot
by artist: Leny Da Fam
in album: GRAVE TAPE
  type: MusicAlbum
  date published: 2022-12-16
isrc code: PLM402208103
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T17:55:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd789d0273b499bd178dd87e9f5f7a1a33549cf4258afbf40c6317253e59b1edb
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/56WO8FZMbDG2CJKNZBTHux.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/56WO8FZMbDG2CJKNZBTHux
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0xd789d0273b499bd178dd87e9f5f7a1a33549cf4258afbf40c6317253e59b1edb. 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/56WO8FZMbDG2CJKNZBTHux.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/56WO8FZMbDG2CJKNZBTHux.
  date published: 2026-07-02T03:55:08Z

Nie mogę spać
type: MusicRecording
duration: PT2M24S
duration ms: 144857
explicit: false
by artist: popiół to kot
by artist: Leny Da Fam
in album: GRAVE TAPE
  type: MusicAlbum
  date published: 2022-12-16
isrc code: PLM402208104
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T02:41:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0b5dc0f750c0bc1bb644cfbd08d148e4faccd6234681ad81ae2e9bd1e68e4157
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956349
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956349
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4MrvNkPU9zSTOxtvqeQ1I2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4MrvNkPU9zSTOxtvqeQ1I2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:34:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0b5dc0f750c0bc1bb644cfbd08d148e4faccd6234681ad81ae2e9bd1e68e4157","isrc":"PLM402208104","name":"Nie mogę spać","registered_at":"2026-06-26T02:41:08Z","spotify_id":"4MrvNkPU9zSTOxtvqeQ1I2","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 0x0b5dc0f750c0bc1bb644cfbd08d148e4faccd6234681ad81ae2e9bd1e68e4157. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4MrvNkPU9zSTOxtvqeQ1I2.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/4MrvNkPU9zSTOxtvqeQ1I2.
  date published: 2026-07-02T11:34:59Z
  text: {"copyright_id":"0x0b5dc0f750c0bc1bb644cfbd08d148e4faccd6234681ad81ae2e9bd1e68e4157","isrc":"PLM402208104","name":"Nie mogę spać","registered_at":"2026-06-26T02:41:08Z","spotify_id":"4MrvNkPU9zSTOxtvqeQ1I2","type":"track"}

R.I.P
type: MusicRecording
duration: PT3M23S
duration ms: 203907
explicit: false
by artist: popiół to kot
by artist: Leny Da Fam
in album: GRAVE TAPE
  type: MusicAlbum
  date published: 2022-12-16
isrc code: PLM402208110
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T02:46:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xac05f5d6934739e238ede0073ebe7694eb5f934b374a3ca19f0c401dc56da5aa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1pA0dKbc2ix6XfU9js8sAJ.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1pA0dKbc2ix6XfU9js8sAJ
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
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 0xac05f5d6934739e238ede0073ebe7694eb5f934b374a3ca19f0c401dc56da5aa. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1pA0dKbc2ix6XfU9js8sAJ.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/1pA0dKbc2ix6XfU9js8sAJ.
  date published: 2026-07-02T05:09:12Z

BDF Cypher 22
type: MusicRecording
duration: PT3M40S
duration ms: 220235
explicit: false
by artist: Słoń
by artist: Piotr Cartman
by artist: The Returners
by artist: Profesor Smok
by artist: Mati Ważny
by artist: Leny Da Fam
by artist: popiół to kot
by artist: Ambro Fiszoski
in album: BDF Cypher 22
  type: MusicAlbum
  date published: 2022-09-05
isrc code: PLM402200001
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T12:12:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4e08db0d2b9c99a2049d5598b4ab0bed23cd40bc89ea8a2a3560213982fae73f
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/4n8PFf0Zb1cL0qrbq1dq3q.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4n8PFf0Zb1cL0qrbq1dq3q
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4e08db0d2b9c99a2049d5598b4ab0bed23cd40bc89ea8a2a3560213982fae73f","isrc":"PLM402200001","name":"BDF Cypher 22","registered_at":"2026-06-04T12:12:24Z","spotify_id":"4n8PFf0Zb1cL0qrbq1dq3q","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 0x4e08db0d2b9c99a2049d5598b4ab0bed23cd40bc89ea8a2a3560213982fae73f. 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/4n8PFf0Zb1cL0qrbq1dq3q.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/4n8PFf0Zb1cL0qrbq1dq3q.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x4e08db0d2b9c99a2049d5598b4ab0bed23cd40bc89ea8a2a3560213982fae73f","isrc":"PLM402200001","name":"BDF Cypher 22","registered_at":"2026-06-04T12:12:24Z","spotify_id":"4n8PFf0Zb1cL0qrbq1dq3q","type":"track"}

Freak
type: MusicRecording
duration: PT3M54S
duration ms: 234397
explicit: false
by artist: Leny Da Fam
by artist: popiół to kot
by artist: Piotr Cartman
in album: Freak
  type: MusicAlbum
  date published: 2023-05-12
isrc code: PLM402308001
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T15:16:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1254f1ee28010883b689a79ad1ce61987e020fdc6c01680e28f0cfdb761443a9
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/1zZnDPoJRDf5FtPzqLkAR4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1zZnDPoJRDf5FtPzqLkAR4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
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 0x1254f1ee28010883b689a79ad1ce61987e020fdc6c01680e28f0cfdb761443a9. 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/1zZnDPoJRDf5FtPzqLkAR4.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/1zZnDPoJRDf5FtPzqLkAR4.
  date published: 2026-06-13T17:25:41Z

Cisza
type: MusicRecording
duration: PT4M0S
duration ms: 240000
explicit: false
by artist: Słoń
by artist: Frosti
by artist: Nobodyinfact
by artist: popiół to kot
by artist: Leny Da Fam
in album: Zero Absolutne
  type: MusicAlbum
  date published: 2024-04-26
isrc code: PLM402400107
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T11:24:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4069287791292e955aabb7f6b53c1e088c07b6cf79457f4232ddbfa23aee347e
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/4Qw6NYbyJbHsIcbiDeby9l.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4Qw6NYbyJbHsIcbiDeby9l
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
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 0x4069287791292e955aabb7f6b53c1e088c07b6cf79457f4232ddbfa23aee347e. 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/4Qw6NYbyJbHsIcbiDeby9l.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/4Qw6NYbyJbHsIcbiDeby9l.
  date published: 2026-06-13T17:25:41Z

JESTEM MROK
type: MusicRecording
duration: PT3M26S
duration ms: 206666
explicit: false
by artist: Piotr Cartman
by artist: Słoń
by artist: Nobodyinfact
by artist: popiół to kot
by artist: Leny Da Fam
in album: JESTEM MROK
  type: MusicAlbum
  date published: 2024-10-31
isrc code: PLM402407002
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T12:24:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0348fca214f82301e53d1670e894da70702f81ee930b5c5284cdb1d4c995d886
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/0cEgAqPlXfMw5iht8bg4oC.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0cEgAqPlXfMw5iht8bg4oC
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0348fca214f82301e53d1670e894da70702f81ee930b5c5284cdb1d4c995d886","isrc":"PLM402407002","name":"JESTEM MROK","registered_at":"2026-06-06T12:24:45Z","spotify_id":"0cEgAqPlXfMw5iht8bg4oC","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 0x0348fca214f82301e53d1670e894da70702f81ee930b5c5284cdb1d4c995d886. 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/0cEgAqPlXfMw5iht8bg4oC.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/0cEgAqPlXfMw5iht8bg4oC.
  date published: 2026-06-13T12:47:07Z
  text: {"copyright_id":"0x0348fca214f82301e53d1670e894da70702f81ee930b5c5284cdb1d4c995d886","isrc":"PLM402407002","name":"JESTEM MROK","registered_at":"2026-06-06T12:24:45Z","spotify_id":"0cEgAqPlXfMw5iht8bg4oC","type":"track"}

Diabły
type: MusicRecording
duration: PT3M20S
duration ms: 200816
explicit: false
by artist: popiół to kot
by artist: Leny Da Fam
by artist: Słoń
in album: Diabły
  type: MusicAlbum
  date published: 2024-09-06
isrc code: PLM402408002
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T08:53:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x87657fdc9d95f99a08b801be8ee8fdd56a0af5f8b1a78fb18552728c4dae553b
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/1fwpip0I1hHTxIcXma9S4T.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1fwpip0I1hHTxIcXma9S4T
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x87657fdc9d95f99a08b801be8ee8fdd56a0af5f8b1a78fb18552728c4dae553b","isrc":"PLM402408002","name":"Diabły","registered_at":"2026-06-07T08:53:32Z","spotify_id":"1fwpip0I1hHTxIcXma9S4T","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 0x87657fdc9d95f99a08b801be8ee8fdd56a0af5f8b1a78fb18552728c4dae553b. 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/1fwpip0I1hHTxIcXma9S4T.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/1fwpip0I1hHTxIcXma9S4T.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x87657fdc9d95f99a08b801be8ee8fdd56a0af5f8b1a78fb18552728c4dae553b","isrc":"PLM402408002","name":"Diabły","registered_at":"2026-06-07T08:53:32Z","spotify_id":"1fwpip0I1hHTxIcXma9S4T","type":"track"}

Cisza
type: MusicRecording
duration: PT4M0S
duration ms: 240000
explicit: false
by artist: Słoń
by artist: Frosti
by artist: Nobodyinfact
by artist: popiół to kot
by artist: Leny Da Fam
in album: Zero Absolutne
  type: MusicAlbum
  date published: 2024-04-26
isrc code: PLM402400107
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T11:24:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4069287791292e955aabb7f6b53c1e088c07b6cf79457f4232ddbfa23aee347e
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/1oWNIcxWjoIruuqU2cSsjy.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1oWNIcxWjoIruuqU2cSsjy
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
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 0x4069287791292e955aabb7f6b53c1e088c07b6cf79457f4232ddbfa23aee347e. 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/1oWNIcxWjoIruuqU2cSsjy.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/1oWNIcxWjoIruuqU2cSsjy.
  date published: 2026-06-13T17:25:41Z

Intro
type: MusicRecording
duration: PT1M12S
duration ms: 72000
explicit: false
by artist: popiół to kot
by artist: Leny Da Fam
by artist: Nobodyinfact
in album: Deadmen Crew
  type: MusicAlbum
  date published: 2024-10-11
isrc code: PLM402408005
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T11:38:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7855c8fc57e257a371111142262479971cdb9daf6499648c5ff6f09303a557de
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956349
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956349
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1Y7PNhDKluW6V9kc5MIu0e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1Y7PNhDKluW6V9kc5MIu0e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:34:59Z
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 0x7855c8fc57e257a371111142262479971cdb9daf6499648c5ff6f09303a557de. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1Y7PNhDKluW6V9kc5MIu0e.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/1Y7PNhDKluW6V9kc5MIu0e.
  date published: 2026-07-02T11:34:59Z

Diabły
type: MusicRecording
duration: PT3M20S
duration ms: 200816
explicit: false
by artist: popiół to kot
by artist: Leny Da Fam
by artist: Słoń
in album: Deadmen Crew
  type: MusicAlbum
  date published: 2024-10-11
isrc code: PLM402408002
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T08:53:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x87657fdc9d95f99a08b801be8ee8fdd56a0af5f8b1a78fb18552728c4dae553b
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/0PcM3U5x6NKj7AVOGDKzIC.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0PcM3U5x6NKj7AVOGDKzIC
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x87657fdc9d95f99a08b801be8ee8fdd56a0af5f8b1a78fb18552728c4dae553b","isrc":"PLM402408002","name":"Diabły","registered_at":"2026-06-07T08:53:32Z","spotify_id":"0PcM3U5x6NKj7AVOGDKzIC","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 0x87657fdc9d95f99a08b801be8ee8fdd56a0af5f8b1a78fb18552728c4dae553b. 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/0PcM3U5x6NKj7AVOGDKzIC.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/0PcM3U5x6NKj7AVOGDKzIC.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x87657fdc9d95f99a08b801be8ee8fdd56a0af5f8b1a78fb18552728c4dae553b","isrc":"PLM402408002","name":"Diabły","registered_at":"2026-06-07T08:53:32Z","spotify_id":"0PcM3U5x6NKj7AVOGDKzIC","type":"track"}

Jestem przeklęty
type: MusicRecording
duration: PT3M55S
duration ms: 235500
explicit: false
by artist: popiół to kot
by artist: Leny Da Fam
by artist: Nobodyinfact
by artist: Room
in album: Deadmen Crew
  type: MusicAlbum
  date published: 2024-10-11
isrc code: PLM402408006
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T19:58:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5586b21d319c10c3d89f7c1c69060a70e9ace42d48485c6a8620928d5a5706fa
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/3lDOdxoXT38qGdrxBuLUT6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3lDOdxoXT38qGdrxBuLUT6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5586b21d319c10c3d89f7c1c69060a70e9ace42d48485c6a8620928d5a5706fa","isrc":"PLM402408006","name":"Jestem przeklęty","registered_at":"2026-06-09T19:58:22Z","spotify_id":"3lDOdxoXT38qGdrxBuLUT6","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 0x5586b21d319c10c3d89f7c1c69060a70e9ace42d48485c6a8620928d5a5706fa. 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/3lDOdxoXT38qGdrxBuLUT6.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/3lDOdxoXT38qGdrxBuLUT6.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x5586b21d319c10c3d89f7c1c69060a70e9ace42d48485c6a8620928d5a5706fa","isrc":"PLM402408006","name":"Jestem przeklęty","registered_at":"2026-06-09T19:58:22Z","spotify_id":"3lDOdxoXT38qGdrxBuLUT6","type":"track"}

Karty na stół
type: MusicRecording
duration: PT3M12S
duration ms: 192000
explicit: false
by artist: popiół to kot
by artist: Leny Da Fam
by artist: Nobodyinfact
in album: Deadmen Crew
  type: MusicAlbum
  date published: 2024-10-11
isrc code: PLM402408007
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T16:42:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0bc23d95584ce93791dd43ba7fdb51d3d1b94f794c841296db48c582f4cf6de8
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/6j5eN2r6cyXGEoB9j4Yw5f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6j5eN2r6cyXGEoB9j4Yw5f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0bc23d95584ce93791dd43ba7fdb51d3d1b94f794c841296db48c582f4cf6de8","isrc":"PLM402408007","name":"Karty na stół","registered_at":"2026-06-11T16:42:41Z","spotify_id":"6j5eN2r6cyXGEoB9j4Yw5f","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 0x0bc23d95584ce93791dd43ba7fdb51d3d1b94f794c841296db48c582f4cf6de8. 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/6j5eN2r6cyXGEoB9j4Yw5f.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/6j5eN2r6cyXGEoB9j4Yw5f.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x0bc23d95584ce93791dd43ba7fdb51d3d1b94f794c841296db48c582f4cf6de8","isrc":"PLM402408007","name":"Karty na stół","registered_at":"2026-06-11T16:42:41Z","spotify_id":"6j5eN2r6cyXGEoB9j4Yw5f","type":"track"}