4U (Germany)
type: MusicGroup
genre: drum and bass
popularity: 6
followers: 366
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xec4654b352f639394957cbfbd270205f4737f386a5ee3157c5f956bc14b6107c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954004
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954004
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/321d32d5-a74e-4b3b-9788-1075cff22660.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/321d32d5-a74e-4b3b-9788-1075cff22660.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/321d32d5-a74e-4b3b-9788-1075cff22660
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T21:01:04Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xec4654b352f639394957cbfbd270205f4737f386a5ee3157c5f956bc14b6107c","name":"4U (Germany)","registered_at":"2026-06-16T07:19:47Z","symbol":"NIM0978415","token_address":"0x5bedd1d650b5f1e188753e670be5fda06617ace9","type":"artist","uuid":"321d32d5-a74e-4b3b-9788-1075cff22660"}
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 0xec4654b352f639394957cbfbd270205f4737f386a5ee3157c5f956bc14b6107c. Chain 2 (Bitcoin): anchored in block 954004 (2026-06-16T21:01:04Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/321d32d5-a74e-4b3b-9788-1075cff22660.json and https://artists.proofprofile.net/proofs/artist/321d32d5-a74e-4b3b-9788-1075cff22660.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T21:01:04Z
  text: {"copyright_id":"0xec4654b352f639394957cbfbd270205f4737f386a5ee3157c5f956bc14b6107c","name":"4U (Germany)","registered_at":"2026-06-16T07:19:47Z","symbol":"NIM0978415","token_address":"0x5bedd1d650b5f1e188753e670be5fda06617ace9","type":"artist","uuid":"321d32d5-a74e-4b3b-9788-1075cff22660"}
album: Run Away
  type: MusicAlbum
  date published: 2020-05-25
album: Run Away Remixed
  type: MusicAlbum
  date published: 2020-09-11
album: COMPA
  type: MusicAlbum
  date published: 2020-12-04
album: Give Up!
  type: MusicAlbum
  date published: 2021-04-30
album: With The Gang
  type: MusicAlbum
  date published: 2021-08-20
album: My Sound
  type: MusicAlbum
  date published: 2021-10-22
album: Take Me Now
  type: MusicAlbum
  date published: 2022-11-11
album: Time
  type: MusicAlbum
  date published: 2022-11-18
album: Above The Sky
  type: MusicAlbum
  date published: 2023-06-02
album: Blhif
  type: MusicAlbum
  date published: 2023-07-07
album: Compa (Bump Thumpa Mix)
  type: MusicAlbum
  date published: 2023-09-22
album: Big Bounce
  type: MusicAlbum
  date published: 2023-10-27
album: Find You
  type: MusicAlbum
  date published: 2024-05-17
album: Let Me Go
  type: MusicAlbum
  date published: 2024-09-27
album: The Feeling
  type: MusicAlbum
  date published: 2024-10-18
album: Love Me Better
  type: MusicAlbum
  date published: 2024-11-15
album: Can't Slow Down
  type: MusicAlbum
  date published: 2025-01-17
  track: Can't Slow Down
    type: MusicRecording
    duration: PT2M55S
    duration ms: 175914
    explicit: false
    by artist: 4U (Germany)
    in album: Can't Slow Down
      type: MusicAlbum
      date published: 2025-01-17
    genre: drum and bass
    isrc code: FR10S2513947
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T17:20:37+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe8b6feacee9838d4154f0766f5189e1c156d17d7c23a2650fe8eda1250ca0f8c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958761
    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/FR10S2513947
    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 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 0xe8b6feacee9838d4154f0766f5189e1c156d17d7c23a2650fe8eda1250ca0f8c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S2513947 — a six-check JSON result.
      date published: 2026-07-19T17:49:48Z
    audio: Can't Slow Down
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 175.041
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.552
      additional property: Energy
        type: PropertyValue
        value: 0.967
      additional property: Speechiness
        type: PropertyValue
        value: 0.12
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.045
      additional property: Liveness
        type: PropertyValue
        value: 0.054
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.378
      additional property: Loudness (dB)
        type: PropertyValue
        value: -1.565
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Bass Vault EP
  type: MusicAlbum
  date published: 2025-02-21
album: Weekends
  type: MusicAlbum
  date published: 2025-05-30
  track: Weekends
    type: MusicRecording
    duration: PT2M44S
    duration ms: 164313
    explicit: false
    by artist: 4U (Germany)
    in album: Weekends
      type: MusicAlbum
      date published: 2025-05-30
    genre: drum and bass
    isrc code: FRX202572428
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T08:47:14+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x41bdc1fd9ddfac8fabbe110abdb7544b8fd97eb07da9305e96f942c878a69cb9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Weekends

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 959118

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/959118

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX202572428

OTSTimestamp
type: PropertyValue
value: 2026-07-22T10:01:58Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41bdc1fd9ddfac8fabbe110abdb7544b8fd97eb07da9305e96f942c878a69cb9. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX202572428 — a six-check JSON result.
date published: 2026-07-22T10:01:58Z

Weekends
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 174.028
additional property: Musical Key
  type: PropertyValue
  value: 10
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.647
additional property: Energy
  type: PropertyValue
  value: 0.878
additional property: Speechiness
  type: PropertyValue
  value: 0.135
additional property: Acousticness
  type: PropertyValue
  value: 0.033
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.384
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.352
additional property: Loudness (dB)
  type: PropertyValue
  value: -4.161
additional property: Key Name
  type: PropertyValue
  value: Bb
additional property: Mode Name
  type: PropertyValue
  value: Minor