U
type: MusicGroup
description: U, or u, is the twenty-first letter and the fifth vowel letter of the Latin alphabet, used in the modern English alphabet and the alphabets of other western European languages and others worldwide. It
popularity: 19
followers: 1020
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc557afb89480e322f7fad348ea957d567ece5c53c9d0f257de7b9e1828ec3ed9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953660
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953660
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/53945548-2e86-4347-b159-2c635f23b972.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/53945548-2e86-4347-b159-2c635f23b972.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/53945548-2e86-4347-b159-2c635f23b972
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T17:20:01Z
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 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 0xc557afb89480e322f7fad348ea957d567ece5c53c9d0f257de7b9e1828ec3ed9. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/53945548-2e86-4347-b159-2c635f23b972.json and https://artists.proofprofile.net/proofs/artist/53945548-2e86-4347-b159-2c635f23b972.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T17:20:01Z
album: Man Make Music Edits, Vol. 1
  type: MusicAlbum
  date published: 2013-10-28
  track: Trikk Edit - Trikk Back to the Traxx Remix
    type: MusicRecording
    duration: PT6M52S
    duration ms: 412037
    explicit: false
    by artist: U
    in album: Man Make Music Edits, Vol. 1
      type: MusicAlbum
      date published: 2013-10-28
    isrc code: GB7EJ1301111
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
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      type: PropertyValue
      value: 2026-07-22T07:28:04+00:00
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      type: PropertyValue
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    additional property: OTSBitcoinBlockVerifyURL
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      value: https://blockstream.info/api/block-height/959114
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB7EJ1301111
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T08:41:42Z
    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 0x4762c345e2c18479354ab4839c9bf47a1694f3c6bb2c73f9349f78281b551fdc. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/GB7EJ1301111.
      date published: 2026-07-22T08:41:42Z
    audio: Trikk Edit - Trikk Back to the Traxx Remix
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 125.006
      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: 0.769
      additional property: Energy
        type: PropertyValue
        value: 0.737
      additional property: Speechiness
        type: PropertyValue
        value: 0.049
      additional property: Acousticness
        type: PropertyValue
        value: 0.017
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.803
      additional property: Liveness
        type: PropertyValue
        value: 0.046
      additional property: Valence (Positivity)
        type: PropertyValue
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      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.66
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Haven In a Heartfelt World
  type: MusicAlbum
  date published: 2014-10-27
album: Haven in a Heartfelt World
  type: MusicAlbum
  date published: 2014-10-27
album: Haven In a Heartfelt World
  type: MusicAlbum
  date published: 2014-10-27
album: Haven In a Heartfelt World
  type: MusicAlbum
  date published: 2014-10-27
album: Our Place
  type: MusicAlbum
  date published: 2015-05-22
album: Easy Prayer
  type: MusicAlbum
  date published: 2015-06-18
album: We Decide Who Comes In
  type: MusicAlbum
  date published: 2015-07-10
album: We Decide Who Comes In
  type: MusicAlbum
  date published: 2015-07-10
album: Why Did I Pick Vienna To Use As A Metaphor For The Rest Of Your Life?
  type: MusicAlbum
  date published: 2016-03-05
album: Vienna Orchestra
  type: MusicAlbum
  date published: 2016-07-01
album: Vienna Orchestra
  type: MusicAlbum
  date published: 2016-07-01
album: Ph54
  type: MusicAlbum
  date published: 2016-12-09
album: PH54
  type: MusicAlbum
  date published: 2016-12-09
album: PH54
  type: MusicAlbum
  date published: 2016-12-09
album: Lowlands
  type: MusicAlbum
  date published: 2020-01-31
album: Lowlands
  type: MusicAlbum
  date published: 2020-02-28
album: Lowlands
  type: MusicAlbum
  date published: 2020-02-28
album: Ecstasy
  type: MusicAlbum
  date published: 2021-05-14
album: Ecstasy
  type: MusicAlbum
  date published: 2021-05-14
album: Parade / Watchers
  type: MusicAlbum
  date published: 2024-03-12
album: Black Hole
  type: MusicAlbum
  date published: 2024-08-29
album: Full Moon / Black Hole
  type: MusicAlbum
  date published: 2024-09-27
album: Full Moon / Black Hole
  type: MusicAlbum
  date published: 2024-09-27
album: Hollow Earth
  type: MusicAlbum
  date published: 2024-10-31
album: Hollow Earth
  type: MusicAlbum
  date published: 2024-10-31
album: Life Isn't A Fountain?
  type: MusicAlbum
  date published: 2024-11-22
album: Black Vaughan/ Is It A Kind Of Dream?
album: The Bitter Withy
album: ARCHENFIELD
track: Ugly Sneakers

Life Isn't A Fountain?
type: MusicAlbum
date published: 2024-11-22

Black Vaughan/ Is It A Kind Of Dream?
type: MusicAlbum
date published: 2025-07-08

Black Vaughan/ Is It A Kind Of Dream?
type: MusicAlbum
date published: 2025-07-08

The Bitter Withy
type: MusicAlbum
date published: 2025-09-16

The Bitter Withy
type: MusicAlbum
date published: 2025-09-16

ARCHENFIELD
type: MusicAlbum
date published: 2025-10-10

ARCHENFIELD
type: MusicAlbum
date published: 2025-10-10

Ugly Sneakers
type: MusicRecording
duration: PT0M41S
duration ms: 41441
explicit: false
by artist: BTU
by artist: Babe, Terror
by artist: U
in album: Without Armour
  type: MusicAlbum
  date published: 2013-03-11
isrc code: GBTZZ1300004
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-06-06T06:43:53+00:00
additional property: CopyrightChainExplorerURL
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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/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBTZZ1300004
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
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 0x37c47677dd3b504ac81faaa1aaa8792414c485832d3c4d535568439f85fff1c9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBTZZ1300004.
  date published: 2026-06-13T12:47:07Z
audio: Ugly Sneakers
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 86.047
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
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    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.659
  additional property: Energy
    type: PropertyValue
    value: 0.997
  additional property: Speechiness
    type: PropertyValue
    value: 0.379
  additional property: Acousticness
    type: PropertyValue
    value: 0.247
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.004
  additional property: Liveness
    type: PropertyValue
    value: 0.096
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.04
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.582
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor