Skiff
type: MusicGroup
description: A skiff is any of a variety of essentially unrelated styles of small boats, usually propelled by sails or oars. Traditionally, these are coastal craft or river craft used for work, leisure, as a utili
popularity: 7
followers: 823
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee955be049c8efeee2a3ce6fba94c9d5acb138b6fe858ddeb66417ddd0c023e. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ca4dea46-066f-41f1-9a3e-b35cbd28a59f.json and https://artists.proofprofile.net/proofs/artist/ca4dea46-066f-41f1-9a3e-b35cbd28a59f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
album: Сльози і спирт
  type: MusicAlbum
  date published: 2023-05-17
  track: Сльози і спирт
    type: MusicRecording
    duration: PT3M10S
    duration ms: 190994
    explicit: false
    by artist: Skiff
    in album: Сльози і спирт
      type: MusicAlbum
      date published: 2023-05-17
    isrc code: CACWV2322765
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
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      type: PropertyValue
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      type: PropertyValue
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    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958765
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CACWV2322765
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T20:17:38Z
    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 0xc8193f3bc1c2c22d9f9740f568e2e54caf70bcb0f109c2901e299ca725a2b929. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:17:38Z), 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/CACWV2322765.
      date published: 2026-07-19T20:17:38Z
    audio: Сльози і спирт
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.903
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.524
      additional property: Energy
        type: PropertyValue
        value: 0.774
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.097
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.107
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.401
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.789
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Сльози і спирт
  type: MusicAlbum
  date published: 2023-05-17
album: Оазис
  type: MusicAlbum
  date published: 2023-06-08
  track: Оазис
    type: MusicRecording
    duration: PT3M43S
    duration ms: 223725
    explicit: false
    by artist: Skiff
    in album: Оазис
      type: MusicAlbum
      date published: 2023-06-08
    isrc code: CACWV2341259
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
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      type: PropertyValue
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CACWV2341259
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T00:50:09Z
    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 0xd5b2c67f060e8d43bdac5987d6c045e0f78ca257185e7d9bda7a065837523e5e. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/CACWV2341259.
      date published: 2026-07-19T00:50:09Z
    audio: Оазис
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 126.083
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.484
      additional property: Energy
        type: PropertyValue
        value: 0.785
      additional property: Speechiness
        type: PropertyValue
        value: 0.057
      additional property: Acousticness
        type: PropertyValue
        value: 0.029
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.122
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Пожежа в кедровому лісі
album: Бетельгейзе
album: Ахірат
album: Lilium
album: Змієлов. Фінальний трек

Valence (Positivity)
type: PropertyValue
value: 0.229

Loudness (dB)
type: PropertyValue
value: -4.968

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major

Пожежа в кедровому лісі
type: MusicAlbum
date published: 2023-08-02
track: Пожежа в кедровому лісі
  type: MusicRecording
  duration: PT4M9S
  duration ms: 249473
  explicit: false
  by artist: Skiff
  in album: Пожежа в кедровому лісі
    type: MusicAlbum
    date published: 2023-08-02
  isrc code: CACWV2396348
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
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    type: PropertyValue
    value: 2026-07-19T16:32:03+00:00
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958761
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CACWV2396348
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T17:49:48Z
  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 0x4a28b346052f69c1bc3c1392c71a77ca8dbbbfa6771728aad395d67cf4c8349d. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/CACWV2396348.
    date published: 2026-07-19T17:49:48Z
  audio: Пожежа в кедровому лісі
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 69.701
    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: 0.485
    additional property: Energy
      type: PropertyValue
      value: 0.671
    additional property: Speechiness
      type: PropertyValue
      value: 0.053
    additional property: Acousticness
      type: PropertyValue
      value: 0.497
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.106
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.467
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.075
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Бетельгейзе
type: MusicAlbum
date published: 2023-09-23

Ахірат
type: MusicAlbum
date published: 2023-10-17

Lilium
type: MusicAlbum
date published: 2024-12-19

Змієлов. Фінальний трек
type: MusicAlbum
date published: 2025-01-09