Caspar Brötzmann Massaker
type: MusicGroup
genre: avant-garde
genre: experimental
genre: free jazz
genre: industrial rock
genre: noise rock
popularity: 7
followers: 3837
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce619766d9edd8a59eeb94b016c298b6d07972e113ac235c8fd18d95cc3257a5. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29cebb1e-d44b-478e-92d2-832bb11f04b9.json and https://artists.proofprofile.net/proofs/artist/29cebb1e-d44b-478e-92d2-832bb11f04b9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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album: The Tribe
  type: MusicAlbum
  date published: 1987
album: The Tribe
  type: MusicAlbum
  date published: 1987-01-01
album: The Tribe
  type: MusicAlbum
  date published: 1988
album: Black Axis
  type: MusicAlbum
  date published: 1989
album: Black Axis
  type: MusicAlbum
  date published: 1989-05-01
album: Der Abend der schwarzen Folklore
  type: MusicAlbum
  date published: 1992-07-01
album: Koksofen
  type: MusicAlbum
  date published: 1993-06-01
album: Home
  type: MusicAlbum
  date published: 1995-01-01
album: Black Axis
  type: MusicAlbum
  date published: 2019-01-18
album: Der Abend Der Schwarzen Folklore
  type: MusicAlbum
  date published: 2019-07-05
album: Koksofen
  type: MusicAlbum
  date published: 2019-07-05
album: Home
  type: MusicAlbum
  date published: 2020-04-17
album: It's A Love Song
  type: MusicAlbum
  date published: 2025-06-20
  track: Bar Open
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    by artist: Caspar Brötzmann Massaker
    in album: It's A Love Song
      type: MusicAlbum
      date published: 2025-06-20
    genre: avant-garde
    genre: experimental
    genre: free jazz
    genre: industrial rock
    genre: noise rock
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    additional property: OTSVerificationAPI
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    additional property: OTSTimestamp
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    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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809bfb39ae6b28666db13dfb55271ee1891df69e94543b8acf8a191037e1f0af. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:00:32Z), 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/GBWMH2511601.
      date published: 2026-07-15T22:00:32Z
    audio: Bar Open
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      additional property: Danceability
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      additional property: Speechiness
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      additional property: Instrumentalness
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  track: All This Violence live in Vienna 29 Jan 2025
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    by artist: Caspar Brötzmann Massaker
    in album: It's A Love Song
      type: MusicAlbum
      date published: 2025-06-20
    genre: avant-garde
    genre: experimental
    genre: free jazz
    genre: industrial rock
    genre: noise rock
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    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: All This Violence live in Vienna 29 Jan 2025
  track: All This Violence live in Dresden 25 Jan 2025

OTSVerificationAPI
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value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBWMH2511602

OTSTimestamp
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value: 2026-07-18T19:27:02Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d16ce67cbeb84e3fc16210bc50d07ff716bbbc576b648a7a1c98be880929b0a. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GBWMH2511602.
date published: 2026-07-18T19:27:02Z

All This Violence live in Vienna 29 Jan 2025
type: AudioObject
additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
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additional property: Energy
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Key Name
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additional property: Mode Name
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All This Violence live in Dresden 25 Jan 2025
type: MusicRecording
duration: PT17M23S
duration ms: 1043416
explicit: false
by artist: Caspar Brötzmann Massaker
in album: It's A Love Song
  type: MusicAlbum
  date published: 2025-06-20
genre: avant-garde
genre: experimental
genre: free jazz
genre: industrial rock
genre: noise rock
isrc code: GBWMH2511603
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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 0x37fd7bfbbc464851976ef5a5f6e86aaf5322cc15520a2725d67bc4c354ab3a97. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/GBWMH2511603.
  date published: 2026-07-20T01:04:02Z
audio: All This Violence live in Dresden 25 Jan 2025
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