Zejman & Garkumpel
type: MusicGroup
genre: sea shanties
popularity: 15
followers: 462
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xadd0c45c260ddc0673c2fa8dfbd63bb765d7cfaa028aaad66b58a3e94d4ad52a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953636
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953636
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/35d942c5-f65e-4f62-ae10-eabf1249e280.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/35d942c5-f65e-4f62-ae10-eabf1249e280.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/35d942c5-f65e-4f62-ae10-eabf1249e280
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T13:03:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xadd0c45c260ddc0673c2fa8dfbd63bb765d7cfaa028aaad66b58a3e94d4ad52a","name":"Zejman & Garkumpel","registered_at":"2026-06-14T10:12:31Z","symbol":"NIM0420581","token_address":"0x7df31ad81020ca6f27644be72776fe7782bc3d34","type":"artist","uuid":"35d942c5-f65e-4f62-ae10-eabf1249e280"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd0c45c260ddc0673c2fa8dfbd63bb765d7cfaa028aaad66b58a3e94d4ad52a. Chain 2 (Bitcoin): anchored in block 953636 (2026-06-14T13:03:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/35d942c5-f65e-4f62-ae10-eabf1249e280.json and https://artists.proofprofile.net/proofs/artist/35d942c5-f65e-4f62-ae10-eabf1249e280.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T13:03:42Z
  text: {"copyright_id":"0xadd0c45c260ddc0673c2fa8dfbd63bb765d7cfaa028aaad66b58a3e94d4ad52a","name":"Zejman & Garkumpel","registered_at":"2026-06-14T10:12:31Z","symbol":"NIM0420581","token_address":"0x7df31ad81020ca6f27644be72776fe7782bc3d34","type":"artist","uuid":"35d942c5-f65e-4f62-ae10-eabf1249e280"}
album: Mazurscy Kolumbowie
  type: MusicAlbum
  date published: 1993-09-10
  track: Samantha
    type: MusicRecording
    duration: PT3M11S
    duration ms: 191186
    explicit: false
    by artist: Zejman & Garkumpel
    in album: Mazurscy Kolumbowie
      type: MusicAlbum
      date published: 1993-09-10
    genre: sea shanties
    isrc code: PLB179300188
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-14T22:16:53+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2f7d875a22c022890448121327d7113045384489868db4be2115a52d6ca1116e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958074
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958074
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB179300188
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-14T22:45:25Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f7d875a22c022890448121327d7113045384489868db4be2115a52d6ca1116e. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB179300188.
      date published: 2026-07-14T22:45:25Z
    audio: Samantha
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 97.877
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.621
      additional property: Energy
        type: PropertyValue
        value: 0.575
      additional property: Speechiness
        type: PropertyValue
        value: 0.051
      additional property: Acousticness
        type: PropertyValue
        value: 0.793
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.351
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.773
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.998
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Brzeg oceanu marzeń
  type: MusicAlbum
  date published: 1997-09-09
album: Do czego służy woda?
  type: MusicAlbum
  date published: 2006-01-01
album: 25 Live, Vol. 1
  type: MusicAlbum
  date published: 2010-12-31
album: Kapela Neptunowa
  type: MusicAlbum
  date published: 2014-01-31
album: 25 Live, Vol. 2
  type: MusicAlbum
  date published: 2014-06-02
album: Skąd się biorą fale
  type: MusicAlbum
  date published: 2019-01-01
album: Mazurscy kolumbowie, Vol. 2
  type: MusicAlbum
  date published: 2020-01-01
  track: Samantha
    type: MusicRecording
    duration: PT3M16S
    duration ms: 196000
    explicit: false
    by artist: Zejman & Garkumpel
    in album: Mazurscy kolumbowie, Vol. 2
      type: MusicAlbum
      date published: 2020-01-01
    genre: sea shanties
    isrc code: PLB172000344
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-02T21:15:07+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3621cee189e420c47be337309e3af5b6a20dc9a785065a6c947f6fb1c9fe2d6f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956402
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956402
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB172000344
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T02:55:50Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3621cee189e420c47be337309e3af5b6a20dc9a785065a6c947f6fb1c9fe2d6f. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:55:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB172000344.
      date published: 2026-07-17T02:55:50Z
    audio: Samantha
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 97.97
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Szanteczka dla dziecka

Danceability
type: PropertyValue
value: 0.645

Energy
type: PropertyValue
value: 0.754

Speechiness
type: PropertyValue
value: 0.114

Acousticness
type: PropertyValue
value: 0.892

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.347

Valence (Positivity)
type: PropertyValue
value: 0.838

Loudness (dB)
type: PropertyValue
value: -7.812

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Minor

Szanteczka dla dziecka
type: MusicAlbum
date published: 2021-09-27
track: Chcę być marynarzem
  type: MusicRecording
  duration: PT2M50S
  duration ms: 170013
  explicit: false
  by artist: Zejman & Garkumpel
  in album: Szanteczka dla dziecka
    type: MusicAlbum
    date published: 2021-09-27
  genre: sea shanties
  isrc code: PLB179500361
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T22:35:44+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x18a308eecdb34ae6e94679ff4ff4d767bcf6090e608866cb810575da6e80b4ef
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956725
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956725
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB179500361
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:12:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a308eecdb34ae6e94679ff4ff4d767bcf6090e608866cb810575da6e80b4ef. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB179500361.
    date published: 2026-07-05T01:12:41Z
  audio: Chcę być marynarzem
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 144.985
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.786
    additional property: Energy
      type: PropertyValue
      value: 0.244
    additional property: Speechiness
      type: PropertyValue
      value: 0.041
    additional property: Acousticness
      type: PropertyValue
      value: 0.892
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.001
    additional property: Liveness
      type: PropertyValue
      value: 0.107
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.759
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.395
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Hej! Ho! Żagle staw
  type: MusicRecording
  duration: PT4M11S
  duration ms: 251253
  explicit: false
  by artist: Zejman & Garkumpel
  in album: Szanteczka dla dziecka
    type: MusicAlbum
    date published: 2021-09-27
  genre: sea shanties
  isrc code: PLB179500363
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T19:21:29+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8e34036e08e012256255f5dcdd3ea69e34b4cf97c1972666039a5fb3e55188be
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958489
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958489
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB179500363
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T04:13:26Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e34036e08e012256255f5dcdd3ea69e34b4cf97c1972666039a5fb3e55188be. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB179500363.
    date published: 2026-07-18T04:13:26Z
  audio: Hej! Ho! Żagle staw
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 64.913
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.406
    additional property: Energy
      type: PropertyValue
      value: 0.318
    additional property: Speechiness
      type: PropertyValue
      value: 0.049
    additional property: Acousticness
      type: PropertyValue
      value: 0.867
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.085
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.511
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.146
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Piosenka o budowaniu statku
  type: MusicRecording
  duration: PT2M0S
  duration ms: 120613
  explicit: false
  by artist: Zejman & Garkumpel
  in album: Szanteczka dla dziecka
    type: MusicAlbum
    date published: 2021-09-27
  genre: sea shanties
  isrc code: PLB179500364
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T11:36:20+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc510cbd85eb4c1279b84894df6fdef23edd835bfb82c2e39cb526379e387ab1b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958544
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958544
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Piosenka o budowaniu statku

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB179500364

OTSTimestamp
type: PropertyValue
value: 2026-07-18T12:14:37Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc510cbd85eb4c1279b84894df6fdef23edd835bfb82c2e39cb526379e387ab1b. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB179500364.
date published: 2026-07-18T12:14:37Z

Piosenka o budowaniu statku
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 136.412
additional property: Musical Key
  type: PropertyValue
  value: 0
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.742
additional property: Energy
  type: PropertyValue
  value: 0.268
additional property: Speechiness
  type: PropertyValue
  value: 0.072
additional property: Acousticness
  type: PropertyValue
  value: 0.781
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.117
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.88
additional property: Loudness (dB)
  type: PropertyValue
  value: -10.57
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Major