Berliner Luft Quartet
type: MusicGroup
genre: jazz
popularity: 36
followers: 299
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x1cabd747313c38a4cc32920f18b3c3329c65e08241645853c15771946ade4f66
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/223daa1a-2cd8-431d-bf6d-8277d28a593d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/223daa1a-2cd8-431d-bf6d-8277d28a593d.json
additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/223daa1a-2cd8-431d-bf6d-8277d28a593d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1cabd747313c38a4cc32920f18b3c3329c65e08241645853c15771946ade4f66","name":"Berliner Luft Quartet","registered_at":"2026-06-11T14:10:35Z","symbol":"NIM0044878","token_address":"0x68b9af34de7a8881428a207f097cba24fd6d3539","type":"artist","uuid":"223daa1a-2cd8-431d-bf6d-8277d28a593d"}
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 0x1cabd747313c38a4cc32920f18b3c3329c65e08241645853c15771946ade4f66. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/223daa1a-2cd8-431d-bf6d-8277d28a593d.json and https://artists.proofprofile.net/proofs/artist/223daa1a-2cd8-431d-bf6d-8277d28a593d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x1cabd747313c38a4cc32920f18b3c3329c65e08241645853c15771946ade4f66","name":"Berliner Luft Quartet","registered_at":"2026-06-11T14:10:35Z","symbol":"NIM0044878","token_address":"0x68b9af34de7a8881428a207f097cba24fd6d3539","type":"artist","uuid":"223daa1a-2cd8-431d-bf6d-8277d28a593d"}
album: Moon Dust
  type: MusicAlbum
  date published: 2024-02-04
album: Carroll Street
  type: MusicAlbum
  date published: 2024-02-25
album: Home Town
  type: MusicAlbum
  date published: 2024-03-03
album: My Sentimental Soul
  type: MusicAlbum
  date published: 2024-03-10
album: You're Too Good to Me
  type: MusicAlbum
  date published: 2024-04-07
  track: You're Too Good to Me
    type: MusicRecording
    duration: PT5M35S
    duration ms: 335969
    explicit: false
    by artist: Berliner Luft Quartet
    in album: You're Too Good to Me
      type: MusicAlbum
      date published: 2024-04-07
    genre: jazz
    isrc code: QZAKB2380070
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T17:39:49+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa5396efc2e4d23b3473691b82e5af93c4cfa9953dfbb1a920a0889d55b69365e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958316
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958316
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2380070
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T19:42:29Z
    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 0xa5396efc2e4d23b3473691b82e5af93c4cfa9953dfbb1a920a0889d55b69365e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZAKB2380070.
      date published: 2026-07-16T19:42:29Z
    audio: You're Too Good to Me
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 84.717
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.376
      additional property: Energy
        type: PropertyValue
        value: 0.128
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.929
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.909
      additional property: Liveness
        type: PropertyValue
        value: 0.09
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.155
      additional property: Loudness (dB)
        type: PropertyValue
        value: -19.143
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: The End of The Road
  type: MusicAlbum
  date published: 2024-05-26
  track: The End of The Road
    type: MusicRecording
    duration: PT3M57S
    duration ms: 237883
    explicit: false
    by artist: Berliner Luft Quartet
    in album: The End of The Road
      type: MusicAlbum
      date published: 2024-05-26
    genre: jazz
    isrc code: QZAKB2402844
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T14:27:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x05722d4d0001069e68b94baa5d13cd66bafc8684e9531335b5b11a0c699f085a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958567
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2402844
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T15:22:40Z
    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 0x05722d4d0001069e68b94baa5d13cd66bafc8684e9531335b5b11a0c699f085a. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QZAKB2402844.
      date published: 2026-07-18T15:22:40Z
    audio: The End of The Road
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 89.088
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.294
      additional property: Energy
        type: PropertyValue
        value: 0.133
      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: Sasha's Dream
album: Konrad's Bar
album: Andrew's Coffee Shop
album: When in Kreuzberg
album: Kind Gesture
album: Cuts and Slices
album: Ocean Hill
album: Mill Basin
album: You came to me
album: You Make It Feel Like Christmas
album: Santa Tell Me
album: Lullaby for Lovers
album: Broadway Serenade

Speechiness
type: PropertyValue
value: 0.03

Acousticness
type: PropertyValue
value: 0.945

Instrumentalness
type: PropertyValue
value: 0.922

Liveness
type: PropertyValue
value: 0.103

Valence (Positivity)
type: PropertyValue
value: 0.379

Loudness (dB)
type: PropertyValue
value: -16.805

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

Sasha's Dream
type: MusicAlbum
date published: 2024-06-09

Konrad's Bar
type: MusicAlbum
date published: 2024-06-23

Andrew's Coffee Shop
type: MusicAlbum
date published: 2024-07-07

When in Kreuzberg
type: MusicAlbum
date published: 2024-07-21

Kind Gesture
type: MusicAlbum
date published: 2024-08-04

Cuts and Slices
type: MusicAlbum
date published: 2024-08-25

Ocean Hill
type: MusicAlbum
date published: 2024-09-01

Mill Basin
type: MusicAlbum
date published: 2024-09-15

You came to me
type: MusicAlbum
date published: 2024-09-29

You Make It Feel Like Christmas
type: MusicAlbum
date published: 2024-11-19

Santa Tell Me
type: MusicAlbum
date published: 2024-11-26

Lullaby for Lovers
type: MusicAlbum
date published: 2025-10-05

Broadway Serenade
type: MusicAlbum
date published: 2025-10-19