Alvin Brehm
type: MusicGroup
popularity: 3
followers: 6
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf0f9c8e48347aec710acc949f7c0d5932fe394e0bcfd47d92992b45eeb4a7fd5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954650
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954650
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d93c6b58-f625-48aa-9b66-942e96757e9f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d93c6b58-f625-48aa-9b66-942e96757e9f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d93c6b58-f625-48aa-9b66-942e96757e9f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:51:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf0f9c8e48347aec710acc949f7c0d5932fe394e0bcfd47d92992b45eeb4a7fd5","name":"Alvin Brehm","registered_at":"2026-06-21T04:02:50Z","symbol":"NIM1813580","token_address":"0xc574b477348737d609aad2328b0c930f292eb9d1","type":"artist","uuid":"d93c6b58-f625-48aa-9b66-942e96757e9f"}
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 0xf0f9c8e48347aec710acc949f7c0d5932fe394e0bcfd47d92992b45eeb4a7fd5. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d93c6b58-f625-48aa-9b66-942e96757e9f.json and https://artists.proofprofile.net/proofs/artist/d93c6b58-f625-48aa-9b66-942e96757e9f.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T04:51:12Z
  text: {"copyright_id":"0xf0f9c8e48347aec710acc949f7c0d5932fe394e0bcfd47d92992b45eeb4a7fd5","name":"Alvin Brehm","registered_at":"2026-06-21T04:02:50Z","symbol":"NIM1813580","token_address":"0xc574b477348737d609aad2328b0c930f292eb9d1","type":"artist","uuid":"d93c6b58-f625-48aa-9b66-942e96757e9f"}
album: Bland, E.: Piece for Chamber Orchestra / for Bassoon / Sketches Set 7 / for Flute / Sketches Set 1 / Brass Quintet / for Flute
  type: MusicAlbum
  date published: 1994-01-01
track: Quartet for Double Basses: I. Allegro moderate
  type: MusicRecording
  duration: PT4M6S
  duration ms: 246280
  explicit: false
  by artist: Gunther Schuller
  by artist: Robert Gladstone
  by artist: Frederick Zimmerman
  by artist: Orin O'Brien
  by artist: Alvin Brehm
  by artist: New England Conservatory Orchestra
  in album: Music for the Underdogs of the Orchestra
    type: MusicAlbum
    date published: 1984-01-01
  genre: american-modern-classical
  isrc code: QMFME1468388
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-29T10:37:38+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xbb506a57e550ce52b642761b79482a2c424ab547d8bf615a80823da42df2e02e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960095
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960095
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME1468388
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T11:07:37Z
  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 0xbb506a57e550ce52b642761b79482a2c424ab547d8bf615a80823da42df2e02e. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QMFME1468388 — a six-check JSON result.
    date published: 2026-07-29T11:07:37Z
  audio: Quartet for Double Basses: I. Allegro moderate
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 124.216
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.212
    additional property: Energy
      type: PropertyValue
      value: 0.016
    additional property: Speechiness
      type: PropertyValue
      value: 0.035
    additional property: Acousticness
      type: PropertyValue
      value: 0.91
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.96
    additional property: Liveness
      type: PropertyValue
      value: 0.116
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.065
    additional property: Loudness (dB)
      type: PropertyValue
      value: -35.257
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Quartet for Double Basses: II. Allegro scherzando
  type: MusicRecording
  duration: PT5M18S
  duration ms: 318600
  explicit: false
  by artist: Gunther Schuller
  by artist: Robert Gladstone
  by artist: Frederick Zimmerman
  by artist: Orin O'Brien
  by artist: Alvin Brehm
  by artist: New England Conservatory Orchestra
  in album: Music for the Underdogs of the Orchestra
    type: MusicAlbum
    date published: 1984-01-01
  genre: american-modern-classical
  isrc code: QMFME1468389
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T07:17:42+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xeb2830028ccce2a8a5364e7dc3bbd99f4e7b84055da9890aa5413e116855fdda
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957025
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957025
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME1468389
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-07T10:59:31Z
  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 0xeb2830028ccce2a8a5364e7dc3bbd99f4e7b84055da9890aa5413e116855fdda. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/QMFME1468389 — a six-check JSON result.
    date published: 2026-07-07T10:59:31Z
  audio: Quartet for Double Basses: II. Allegro scherzando
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 118.218
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.202
    additional property: Energy
      type: PropertyValue
      value: 0.011
    additional property: Speechiness
      type: PropertyValue
      value: 0.039
    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
track: Quartet for Double Basses: III. Adagio

Acousticness
type: PropertyValue
value: 0.908

Instrumentalness
type: PropertyValue
value: 0.959

Liveness
type: PropertyValue
value: 0.11

Valence (Positivity)
type: PropertyValue
value: 0.039

Loudness (dB)
type: PropertyValue
value: -36.415

Key Name
type: PropertyValue
value: E

Mode Name
type: PropertyValue
value: Minor

Quartet for Double Basses: III. Adagio
type: MusicRecording
duration: PT7M16S
duration ms: 436840
explicit: false
by artist: Gunther Schuller
by artist: Robert Gladstone
by artist: Frederick Zimmerman
by artist: Orin O'Brien
by artist: Alvin Brehm
by artist: New England Conservatory Orchestra
in album: Music for the Underdogs of the Orchestra
  type: MusicAlbum
  date published: 1984-01-01
genre: american-modern-classical
isrc code: QMFME1468390
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T22:30:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x65a599f5b412b1b43735af0a96e3141a5d02349f6735c290a104c1d0c4ccd8e9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME1468390
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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 0x65a599f5b412b1b43735af0a96e3141a5d02349f6735c290a104c1d0c4ccd8e9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMFME1468390 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Quartet for Double Basses: III. Adagio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.849
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.136
  additional property: Energy
    type: PropertyValue
    value: 0.004
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.853
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.909
  additional property: Liveness
    type: PropertyValue
    value: 0.117
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.04
  additional property: Loudness (dB)
    type: PropertyValue
    value: -38.586
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor