jakuub
type: MusicGroup
genre: lo-fi beats
popularity: 9
followers: 265
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdc2b5622dd139214065dc92ea8f913aa97cc873253c60d996dd7554437381de6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/624eda30-cdbe-445e-ac57-7cab8fcd83de.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/624eda30-cdbe-445e-ac57-7cab8fcd83de.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/624eda30-cdbe-445e-ac57-7cab8fcd83de
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
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 0xdc2b5622dd139214065dc92ea8f913aa97cc873253c60d996dd7554437381de6. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/624eda30-cdbe-445e-ac57-7cab8fcd83de.json and https://artists.proofprofile.net/proofs/artist/624eda30-cdbe-445e-ac57-7cab8fcd83de.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: REFLECT
  type: MusicAlbum
  date published: 2021-12-08
album: DAYDREAM
  type: MusicAlbum
  date published: 2021-12-08
album: FUFU
  type: MusicAlbum
  date published: 2022-01-02
album: northshore
  type: MusicAlbum
  date published: 2022-01-08
album: days end
  type: MusicAlbum
  date published: 2022-01-28
album: float
  type: MusicAlbum
  date published: 2022-02-17
album: queensbridge
  type: MusicAlbum
  date published: 2022-06-22
album: reminiscence
  type: MusicAlbum
  date published: 2022-06-26
  track: reminiscence
    type: MusicRecording
    duration: PT1M43S
    duration ms: 103883
    explicit: false
    by artist: jakuub
    in album: reminiscence
      type: MusicAlbum
      date published: 2022-06-26
    genre: lo-fi beats
    isrc code: US3DF2250046
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T13:19:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x24e04e3c73db305cac3237e99697b8c42764bc8b8445fa302ea22b930882e216
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2250046
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 0x24e04e3c73db305cac3237e99697b8c42764bc8b8445fa302ea22b930882e216. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US3DF2250046.
      date published: 2026-07-03T19:59:51Z
    audio: reminiscence
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 148.013
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.532
      additional property: Energy
        type: PropertyValue
        value: 0.188
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.967
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.957
      additional property: Liveness
        type: PropertyValue
        value: 0.192
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.161
      additional property: Loudness (dB)
        type: PropertyValue
        value: -18.619
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: planet hoppin'
  type: MusicAlbum
  date published: 2022-07-22
album: old stomping grounds
  type: MusicAlbum
  date published: 2022-08-19
album: old stomping grounds
  type: MusicAlbum
  date published: 2022-08-19
album: streetlights
  type: MusicAlbum
  date published: 2022-09-21
album: Lunar Rhythm
  type: MusicAlbum
  date published: 2022-10-07
album: crown heights
  type: MusicAlbum
  date published: 2022-10-26
  track: crown heights
    type: MusicRecording
    duration: PT1M38S
    duration ms: 98120
    explicit: false
    by artist: jakuub
    in album: crown heights
      type: MusicAlbum
      date published: 2022-10-26
    genre: lo-fi beats
    isrc code: USANG2215053
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T02:28:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x82b7effd7df4c80a369627a645218f652ff546c5130722f31948628d9b95ec46
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958650
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958650
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USANG2215053
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T03:36:41Z
    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 0x82b7effd7df4c80a369627a645218f652ff546c5130722f31948628d9b95ec46. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USANG2215053.
      date published: 2026-07-19T03:36:41Z
    audio: crown heights
album: woodcrest
album: tuttomondo
album: bluntslide
album: outlines
album: lostnthought
album: evergreen
album: backtrack
album: glazed

crown heights
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 90.496
additional property: Musical Key
  type: PropertyValue
  value: 6
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.743
additional property: Energy
  type: PropertyValue
  value: 0.56
additional property: Speechiness
  type: PropertyValue
  value: 0.046
additional property: Acousticness
  type: PropertyValue
  value: 0.362
additional property: Instrumentalness
  type: PropertyValue
  value: 0.918
additional property: Liveness
  type: PropertyValue
  value: 0.112
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.801
additional property: Loudness (dB)
  type: PropertyValue
  value: -10.411
additional property: Key Name
  type: PropertyValue
  value: F#
additional property: Mode Name
  type: PropertyValue
  value: Major

woodcrest
type: MusicAlbum
date published: 2022-10-28

tuttomondo
type: MusicAlbum
date published: 2022-11-25

bluntslide
type: MusicAlbum
date published: 2022-11-25

outlines
type: MusicAlbum
date published: 2023-01-09

lostnthought
type: MusicAlbum
date published: 2023-01-21

evergreen
type: MusicAlbum
date published: 2023-02-03

backtrack
type: MusicAlbum
date published: 2023-03-10

glazed
type: MusicAlbum
date published: 2023-04-11