Köthener BachCollektiv
type: MusicGroup
popularity: 6
followers: 37
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additional property: CopyrightChainExplorerURL
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additional property: OTSVerifyInstructions
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  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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track: Concerto E Minor for Violin, Strings & B.C.: III. Allegro
track: Concerto BWV 1064R: III. Allegro
track: Concerto BWV 1056R: I. —
track: Concerto BWV 1056R: II. Largo
track: Concerto E Minor for Violin, Strings & B.C.: I. Allegro - Andante - Allegro
track: Concerto E Minor for Violin, Strings & B.C.: II. Adagio

Concerto E Minor for Violin, Strings & B.C.: III. Allegro
type: MusicRecording
duration: PT4M36S
duration ms: 276868
explicit: false
by artist: Joseph Spieß
by artist: Midori Seiler
by artist: Köthener BachCollektiv
in album: Bach's Virtuosos
  type: MusicAlbum
  date published: 2023-04-14
isrc code: DES382308010
additional property: CopyrightID
additional property: CopyrightStatus
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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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7717c4315fa992595c57e679a186d8aafee5ead30a4306abbfa26f75976901e4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DES382308010.
  date published: 2026-07-08T03:53:27Z
audio: Concerto E Minor for Violin, Strings & B.C.: III. Allegro
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Concerto BWV 1064R: III. Allegro
type: MusicRecording
duration: PT4M28S
duration ms: 268954
explicit: false
by artist: Johann Sebastian Bach
by artist: Midori Seiler
by artist: Mayumi Hirasaki
by artist: Köthener BachCollektiv
by artist: Georg Kallweit
in album: Bach's Virtuosos
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  date published: 2023-04-14
genre: classical
genre: classical-piano
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additional property: CopyrightID
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Concerto BWV 1064R: III. Allegro
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Concerto BWV 1056R: I. —
type: MusicRecording
duration: PT3M20S
duration ms: 200654
explicit: false
by artist: Johann Sebastian Bach
by artist: Midori Seiler
by artist: Köthener BachCollektiv
in album: Bach's Virtuosos
  type: MusicAlbum
  date published: 2023-04-14
genre: classical
genre: classical-piano
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52463a6ec922650c9924899398301462f956ca1075ce1ae897b1d1112def2a9c. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/DES382308001.
  date published: 2026-08-01T01:44:32Z
audio: Concerto BWV 1056R: I. —
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additional property: OTSVerificationAPI
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additional property: OTSBitcoinBlockVerifyURL
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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 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

Concerto BWV 1056R: II. Largo
type: MusicRecording
duration: PT2M37S
duration ms: 157958
explicit: false
by artist: Johann Sebastian Bach
by artist: Midori Seiler
by artist: Köthener BachCollektiv
in album: Bach's Virtuosos
  type: MusicAlbum
  date published: 2023-04-14
genre: classical
genre: classical-piano
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68b1a3615ed42624e8483c2b3fa5c048dfe23f99470df3956bda1af6497cb1d. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DES382308002.
  date published: 2026-07-31T17:29:52Z
audio: Concerto BWV 1056R: II. Largo
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  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

Concerto E Minor for Violin, Strings & B.C.: I. Allegro - Andante - Allegro
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duration: PT6M26S
duration ms: 386152
explicit: false
by artist: Joseph Spieß
by artist: Midori Seiler
by artist: Köthener BachCollektiv
in album: Bach's Virtuosos
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  date published: 2023-04-14
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-08-01T02:22:04Z
audio: Concerto E Minor for Violin, Strings & B.C.: I. Allegro - Andante - Allegro
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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Concerto E Minor for Violin, Strings & B.C.: II. Adagio
type: MusicRecording
duration: PT2M28S
duration ms: 148050
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by artist: Joseph Spieß
by artist: Midori Seiler
by artist: Köthener BachCollektiv
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T18:23:33Z
audio: Concerto E Minor for Violin, Strings & B.C.: II. Adagio
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  type: PropertyValue
  value: 2026-07-30T18:23:33+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES382308009
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960291
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960291
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T18:23:33+00:00
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