Taku Yabuki
type: MusicGroup
genre: jazz fusion
genre: math rock
genre: progressive rock
popularity: 12
followers: 4755
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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  value: https://artists.proofprofile.net/proofs/artist/fbbdf297-8f2a-4b37-8ce6-1ca303cb7b65.ots
additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef1c56b12cb09f20575889002183f99ec4f7557903b3d44e3152a8b2412ca00. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fbbdf297-8f2a-4b37-8ce6-1ca303cb7b65.json and https://artists.proofprofile.net/proofs/artist/fbbdf297-8f2a-4b37-8ce6-1ca303cb7b65.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T18:10:31Z
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album: Modern World Symphony
  type: MusicAlbum
  date published: 2007-12-12
album: Modern World Symphony
  type: MusicAlbum
  date published: 2007-12-12
album: Melody Cascade
  type: MusicAlbum
  date published: 2011-06-08
album: Melody Cascade
  type: MusicAlbum
  date published: 2011-06-08
  track: Seven Days Of Reminiscence
    type: MusicRecording
    duration: PT4M11S
    duration ms: 251836
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    by artist: Taku Yabuki
    in album: Melody Cascade
      type: MusicAlbum
      date published: 2011-06-08
    genre: jazz fusion
    genre: math rock
    genre: progressive rock
    isrc code: TCJPQ2286964
    additional property: CopyrightID
    additional property: CopyrightStatus
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPQ2286964
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T16:14:30Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0572b9fab84908e6f1c5e060c25c933f693cebe22afebd2c9d77ee2fe08eff2f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCJPQ2286964.
      date published: 2026-07-16T16:14:30Z
    audio: Seven Days Of Reminiscence
      type: AudioObject
      additional property: Tempo (BPM)
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        value: 107.947
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        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
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      additional property: Time Signature
        type: PropertyValue
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      additional property: Danceability
        type: PropertyValue
        value: 0.308
      additional property: Energy
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      additional property: Speechiness
        type: PropertyValue
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      additional property: Acousticness
        type: PropertyValue
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      additional property: Instrumentalness
        type: PropertyValue
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      additional property: Liveness
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      additional property: Valence (Positivity)
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      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.283
      additional property: Key Name
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  track: Memorabilia
    type: MusicRecording
    duration: PT5M9S
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    explicit: false
    by artist: Taku Yabuki
    in album: Melody Cascade
      type: MusicAlbum
      date published: 2011-06-08
    genre: jazz fusion
    genre: math rock
    genre: progressive rock
    isrc code: TCJPQ2286968
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
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    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x21eb45532547624844e744c41aa633ad3b6a96289f064265830ccd1ae904fbdb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPQ2286968
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T10:15:55Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21eb45532547624844e744c41aa633ad3b6a96289f064265830ccd1ae904fbdb. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/TCJPQ2286968.
      date published: 2026-07-19T10:15:55Z
    audio: Memorabilia
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 154.072
      additional property: Musical Key
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        value: 10
      additional property: Mode (Major/Minor)
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        value: 1
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        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
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      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: Modern World Symphony No.2
album: Primary Colors
album: Activation
album: Home
album: Modern World Symphony No. 3
album: Modern World Symphony No.3
album: Late Flowers
album: Spring Storm
album: Piano Solo (Live at Bochibochi)
album: Songs for the slow life
album: Nostalgic Rain
album: Raindrop
album: Musical Conversation
album: Twirl (Solo Piano Version)
album: Forest Wind (Solo Piano Version)
album: Healing Potion, No.2
album: Healing Potion
album: Ambivalence
album: Healing Potion No. 3
album: Infini
album: Seven
album: Voyager
album: Healing Potion No. 4
album: Healing Potion No. 5
album: Healing Potion No. 7
album: Healing Potion No. 6
album: Healing Potion No. 8
album: Healing Potion No. 10
album: Healing Potion No. 9
album: Marvel
album: Solo Piano in Happiness
album: Healing Potion No. 11
album: Healing Potion No. 13
album: Piano Calling
album: Healing Potion No. 14
album: Sleep Music
track: No Visa Needed

Speechiness
type: PropertyValue
value: 0.028

Acousticness
type: PropertyValue
value: 0.596

Instrumentalness
type: PropertyValue
value: 0.902

Liveness
type: PropertyValue
value: 0.169

Valence (Positivity)
type: PropertyValue
value: 0.278

Loudness (dB)
type: PropertyValue
value: -12.816

Key Name
type: PropertyValue
value: Bb

Mode Name
type: PropertyValue
value: Major

Melody Cascade
type: MusicAlbum
date published: 2011-06-08

Modern World Symphony No.2
type: MusicAlbum
date published: 2015-08-20

Modern World Symphony No.2
type: MusicAlbum
date published: 2015-08-20

Primary Colors
type: MusicAlbum
date published: 2018-06-09

Primary Colors
type: MusicAlbum
date published: 2018-06-09

Activation
type: MusicAlbum
date published: 2018-09-01

Home
type: MusicAlbum
date published: 2020-02-01

Modern World Symphony No. 3
type: MusicAlbum
date published: 2020-07-07
track: Dance of Ganesha
  type: MusicRecording
  duration: PT5M12S
  duration ms: 312674
  explicit: false
  by artist: Taku Yabuki
  in album: Modern World Symphony No. 3
    type: MusicAlbum
    date published: 2020-07-07
  genre: jazz fusion
  genre: math rock
  genre: progressive rock
  isrc code: USHM82060360
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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    value: 2026-07-21T20:19:10+00:00
  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0x59ad9ecfa4e6668637d429e6cf5a3a000865f14689bc8f7c62eed831c838f8e9
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  additional property: OTSVerificationAPI
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM82060360
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T21:09:36Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ad9ecfa4e6668637d429e6cf5a3a000865f14689bc8f7c62eed831c838f8e9. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/USHM82060360.
    date published: 2026-07-21T21:09:36Z
  audio: Dance of Ganesha
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 130.804
    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.382
    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
      type: PropertyValue
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    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.847
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
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Modern World Symphony No.3
type: MusicAlbum
date published: 2020-07-07

Late Flowers
type: MusicAlbum
date published: 2020-07-07

Modern World Symphony No.3
type: MusicAlbum
date published: 2020-07-07

Spring Storm
type: MusicAlbum
date published: 2021-04-01

Piano Solo (Live at Bochibochi)
type: MusicAlbum
date published: 2021-08-01

Songs for the slow life
type: MusicAlbum
date published: 2021-09-25

Songs for the slow life
type: MusicAlbum
date published: 2021-09-25

Nostalgic Rain
type: MusicAlbum
date published: 2022-05-09

Raindrop
type: MusicAlbum
date published: 2022-05-12

Musical Conversation
type: MusicAlbum
date published: 2022-05-31

Twirl (Solo Piano Version)
type: MusicAlbum
date published: 2022-05-31

Forest Wind (Solo Piano Version)
type: MusicAlbum
date published: 2022-05-31

Healing Potion, No.2
type: MusicAlbum
date published: 2022-07-01

Healing Potion
type: MusicAlbum
date published: 2022-07-01

Ambivalence
type: MusicAlbum
date published: 2022-07-01

Healing Potion No. 3
type: MusicAlbum
date published: 2022-08-03

Infini
type: MusicAlbum
date published: 2022-08-03

Seven
type: MusicAlbum
date published: 2022-08-23

Voyager
type: MusicAlbum
date published: 2022-09-07

Healing Potion No. 4
type: MusicAlbum
date published: 2022-09-07

Healing Potion No. 5
type: MusicAlbum
date published: 2023-01-10

Healing Potion No. 7
type: MusicAlbum
date published: 2023-10-31

Healing Potion No. 6
type: MusicAlbum
date published: 2023-10-31

Healing Potion No. 8
type: MusicAlbum
date published: 2024-02-02

Healing Potion No. 10
type: MusicAlbum
date published: 2024-05-03

Healing Potion No. 9
type: MusicAlbum
date published: 2024-08-05

Marvel
type: MusicAlbum
date published: 2025-01-21

Solo Piano in Happiness
type: MusicAlbum
date published: 2025-03-21

Healing Potion No. 11
type: MusicAlbum
date published: 2025-03-21

Healing Potion No. 13
type: MusicAlbum
date published: 2025-05-19

Piano Calling
type: MusicAlbum
date published: 2025-07-30

Healing Potion No. 14
type: MusicAlbum
date published: 2025-07-30

Sleep Music
type: MusicAlbum
date published: 2025-10-29

No Visa Needed
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duration: PT4M12S
duration ms: 252923
explicit: false
by artist: Jatayu
by artist: Taku Yabuki
in album: No Visa Needed
  type: MusicAlbum
  date published: 2023-01-06
genre: indian-indie
isrc code: USL4Q2277781
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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  value: 2026-07-29T12:03:09+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x4a84ade1442e469b2bb9c6d0c6069958512fc600406dd63a1adc002139677ac4
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960105
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4Q2277781
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T12:35:17Z
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a84ade1442e469b2bb9c6d0c6069958512fc600406dd63a1adc002139677ac4. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/USL4Q2277781.
  date published: 2026-07-29T12:35:17Z
audio: No Visa Needed
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.472
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.111
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.583
  additional property: Liveness
    type: PropertyValue
    value: 0.108
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.305
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.32
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    type: PropertyValue
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