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type: MusicGroup
popularity: 3
followers: 3
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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additional property: OTSRecordURL
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  value: https://artists.proofprofile.net/proofs/artist/0d74d8b6-f7bb-493c-a1a6-0cebda8ec899.json
additional property: OTSVerificationAPI
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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 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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc22349316af86135e6f016db536fefb196e9a77eb0ad2b232f392103779e44. Chain 2 (Bitcoin): anchored in block 953888 (2026-06-16T04:55:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d74d8b6-f7bb-493c-a1a6-0cebda8ec899.json and https://artists.proofprofile.net/proofs/artist/0d74d8b6-f7bb-493c-a1a6-0cebda8ec899.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T04:55:23Z
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track: Mass No. 1 in D Major "Emperor Mass": I. Kyrie
  type: MusicRecording
  duration: PT3M40S
  duration ms: 220200
  explicit: false
  by artist: Antonio Salieri
  by artist: St. Florianer Sängerknaben
  by artist: Leondinger Symphonie Orchester
  by artist: Uwe Christian Harrer
  in album: Salieri: Mass No. 1 in D Major "Emperor Mass"; Organ Concert in C Major, Dixit Dominus; Magnificat in C Major
    type: MusicAlbum
    date published: 1997-03-05
  genre: classical
  genre: classical-era
  genre: galante-era
  genre: italian-romanticism
  isrc code: DEC989600274
  additional property: CopyrightID
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC989600274
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T05:17:02Z
  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 0x1732cfff9aff679b9196973579d6ae24e33ebdaa1676195e6fb705219b49f439. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DEC989600274.
    date published: 2026-07-31T05:17:02Z
  audio: Mass No. 1 in D Major "Emperor Mass": I. Kyrie
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    additional property: Speechiness
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track: Mass No. 1 in D Major "Emperor Mass": II. Gloria
  type: MusicRecording
  duration: PT8M13S
  duration ms: 493773
  explicit: false
  by artist: Antonio Salieri
  by artist: St. Florianer Sängerknaben
  by artist: Leondinger Symphonie Orchester
  by artist: Uwe Christian Harrer
  in album: Salieri: Mass No. 1 in D Major "Emperor Mass"; Organ Concert in C Major, Dixit Dominus; Magnificat in C Major
    type: MusicAlbum
    date published: 1997-03-05
  genre: classical
  genre: classical-era
  genre: galante-era
  genre: italian-romanticism
  isrc code: DEC989600275
  additional property: CopyrightID
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  additional property: OTSHash
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-08-01T00:15:43Z
  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
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f90c040f350961c9662c8cc676b14a3dda20789a30f7d60bcfc1ca09c21437. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/DEC989600275.
    date published: 2026-08-01T00:15:43Z
  audio: Mass No. 1 in D Major "Emperor Mass": II. Gloria
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    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: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name
track: Mass No. 1 in D Major "Emperor Mass": III. Credo
track: Mass No. 1 in D Major "Emperor Mass": V. Benedictus
track: Mass No. 1 in D Major "Emperor Mass": VI. Agnus Dei

Instrumentalness
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value: 0.703

Liveness
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value: 0.311

Valence (Positivity)
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value: 0.117

Loudness (dB)
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value: -20.309

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major

Mass No. 1 in D Major "Emperor Mass": III. Credo
type: MusicRecording
duration: PT6M35S
duration ms: 395533
explicit: false
by artist: Antonio Salieri
by artist: St. Florianer Sängerknaben
by artist: Leondinger Symphonie Orchester
by artist: Uwe Christian Harrer
in album: Salieri: Mass No. 1 in D Major "Emperor Mass"; Organ Concert in C Major, Dixit Dominus; Magnificat in C Major
  type: MusicAlbum
  date published: 1997-03-05
genre: classical
genre: classical-era
genre: galante-era
genre: italian-romanticism
isrc code: DEC989600276
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-31T14:34:35+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:20:15Z
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 0x8acc17ad32e3110fad419b533a9b1f4222e23b35a02466bf72f12b00413f72e6. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEC989600276.
  date published: 2026-07-31T15:20:15Z
audio: Mass No. 1 in D Major "Emperor Mass": III. Credo
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Mass No. 1 in D Major "Emperor Mass": V. Benedictus
type: MusicRecording
duration: PT3M12S
duration ms: 192733
explicit: false
by artist: Antonio Salieri
by artist: St. Florianer Sängerknaben
by artist: Leondinger Symphonie Orchester
by artist: Uwe Christian Harrer
in album: Salieri: Mass No. 1 in D Major "Emperor Mass"; Organ Concert in C Major, Dixit Dominus; Magnificat in C Major
  type: MusicAlbum
  date published: 1997-03-05
genre: classical
genre: classical-era
genre: galante-era
genre: italian-romanticism
isrc code: DEC989600278
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-31T20:23:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x06ca5b9ac0806b65666f8cc92f13e8e176375f6f93d350f9435201873c275d3f
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960463
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC989600278
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T20:42:35Z
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 0x06ca5b9ac0806b65666f8cc92f13e8e176375f6f93d350f9435201873c275d3f. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/DEC989600278.
  date published: 2026-07-31T20:42:35Z
audio: Mass No. 1 in D Major "Emperor Mass": V. Benedictus
  type: AudioObject
  additional property: Tempo (BPM)
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    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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Mass No. 1 in D Major "Emperor Mass": VI. Agnus Dei
type: MusicRecording
duration: PT4M35S
duration ms: 275746
explicit: false
by artist: Antonio Salieri
by artist: St. Florianer Sängerknaben
by artist: Leondinger Symphonie Orchester
by artist: Uwe Christian Harrer
in album: Salieri: Mass No. 1 in D Major "Emperor Mass"; Organ Concert in C Major, Dixit Dominus; Magnificat in C Major
  type: MusicAlbum
  date published: 1997-03-05
genre: classical
genre: classical-era
genre: galante-era
genre: italian-romanticism
isrc code: DEC989600279
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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  value: 2026-07-07T19:45:37+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x224e6369a2e468526b1d124513bbed5a6ba25febf19b1a77ba2b8c9f14e6a78a
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957122
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC989600279
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:39:04Z
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 0x224e6369a2e468526b1d124513bbed5a6ba25febf19b1a77ba2b8c9f14e6a78a. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEC989600279.
  date published: 2026-07-08T03:39:04Z
audio: Mass No. 1 in D Major "Emperor Mass": VI. Agnus Dei
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Danceability
    type: PropertyValue
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