nobuka
type: MusicGroup
popularity: 10
followers: 692
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe94525421c75b084fdb3ac0321597cdc70dd5ebcbcfd3d321fad26c634c94fb1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954553
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954553
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/acddcf31-1788-4744-8e93-0019fb0b0004.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/acddcf31-1788-4744-8e93-0019fb0b0004.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/acddcf31-1788-4744-8e93-0019fb0b0004
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T11:51:30Z
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 0xe94525421c75b084fdb3ac0321597cdc70dd5ebcbcfd3d321fad26c634c94fb1. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/acddcf31-1788-4744-8e93-0019fb0b0004.json and https://artists.proofprofile.net/proofs/artist/acddcf31-1788-4744-8e93-0019fb0b0004.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T11:51:30Z
album: Denkmal
  type: MusicAlbum
  date published: 2018-02-17
album: Vierzehn
  type: MusicAlbum
  date published: 2018-06-21
album: Privat
  type: MusicAlbum
  date published: 2019-01-25
  track: Klimt
    type: MusicRecording
    duration: PT3M28S
    duration ms: 208000
    explicit: false
    by artist: nobuka
    in album: Privat
      type: MusicAlbum
      date published: 2019-01-25
    isrc code: DEAR41984060
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T21:51:19+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x342b262eecb8d0dc9d9e5ad9d65c4537e42a3e53d98ec989f3ae2eb2a2bc0f7a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958335
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958335
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAR41984060
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T00:53:52Z
    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 0x342b262eecb8d0dc9d9e5ad9d65c4537e42a3e53d98ec989f3ae2eb2a2bc0f7a. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:53:52Z), 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/DEAR41984060.
      date published: 2026-07-17T00:53:52Z
    audio: Klimt
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 131.997
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.365
      additional property: Energy
        type: PropertyValue
        value: 0.454
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.407
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.908
      additional property: Liveness
        type: PropertyValue
        value: 0.108
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.031
      additional property: Loudness (dB)
        type: PropertyValue
        value: -16.508
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Dissolve
  type: MusicAlbum
  date published: 2019-05-21
album: Dissolve
  type: MusicAlbum
  date published: 2019-05-31
  track: Resolve
    type: MusicRecording
    duration: PT3M23S
    duration ms: 203875
    explicit: false
    by artist: nobuka
    in album: Dissolve
      type: MusicAlbum
      date published: 2019-05-31
    isrc code: DEAR41961559
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T14:26:23+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x31ef4c90076170b3568059c61c1844d0f242870624b51456eb06570d1e196fea
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958430
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958430
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAR41961559
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T15:33:28Z
    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 0x31ef4c90076170b3568059c61c1844d0f242870624b51456eb06570d1e196fea. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/DEAR41961559.
      date published: 2026-07-17T15:33:28Z
    audio: Resolve
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 94.51
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.359
      additional property: Energy
        type: PropertyValue
        value: 0.38
      additional property: Speechiness
        type: PropertyValue
        value: 0.043
      additional property: Acousticness
        type: PropertyValue
        value: 0.995
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.832
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: You Looked Like an Angel, She Said
album: Gesamt
album: Reiko
album: Road to Reiko (unreleased material)
album: Miniatüre
album: Fehrbelliner Str.
album: A Fair Amount of Time
album: Christmas Singles 2019-2023
album: Finally We Are All Floating
album: La Mise En Liberté
album: De vlieg
album: monologue intérieur

Liveness
type: PropertyValue
value: 0.107

Valence (Positivity)
type: PropertyValue
value: 0.264

Loudness (dB)
type: PropertyValue
value: -20.312

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Minor

You Looked Like an Angel, She Said
type: MusicAlbum
date published: 2020-04-17
track: Of What Remains
  type: MusicRecording
  duration: PT4M4S
  duration ms: 244000
  explicit: false
  by artist: nobuka
  in album: You Looked Like an Angel, She Said
    type: MusicAlbum
    date published: 2020-04-17
  isrc code: DEAR42023906
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T07:26:59+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4e609813aa8e90a62fa6004c4260abab831b5a2ed4e2046278ef62ef189acd0b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956634
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956634
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAR42023906
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-04T10:04:33Z
  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 0x4e609813aa8e90a62fa6004c4260abab831b5a2ed4e2046278ef62ef189acd0b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEAR42023906.
    date published: 2026-07-04T10:04:33Z
  audio: Of What Remains
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 67.806
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.169
    additional property: Energy
      type: PropertyValue
      value: 0.008
    additional property: Speechiness
      type: PropertyValue
      value: 0.039
    additional property: Acousticness
      type: PropertyValue
      value: 0.882
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.948
    additional property: Liveness
      type: PropertyValue
      value: 0.1
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.039
    additional property: Loudness (dB)
      type: PropertyValue
      value: -36.212
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major

Gesamt
type: MusicAlbum
date published: 2021-04-16

Reiko
type: MusicAlbum
date published: 2021-10-07

Road to Reiko (unreleased material)
type: MusicAlbum
date published: 2021-11-26

Miniatüre
type: MusicAlbum
date published: 2022-07-07

Fehrbelliner Str.
type: MusicAlbum
date published: 2023-05-05

A Fair Amount of Time
type: MusicAlbum
date published: 2023-07-07

Christmas Singles 2019-2023
type: MusicAlbum
date published: 2023-12-22

Finally We Are All Floating
type: MusicAlbum
date published: 2024-04-12

La Mise En Liberté
type: MusicAlbum
date published: 2025-02-02

De vlieg
type: MusicAlbum
date published: 2025-02-17

monologue intérieur
type: MusicAlbum
date published: 2025-06-07