Grace Bumbry
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genre: opera
description: Grace Melzia Bumbry (January 4, 1937 – May 7, 2023) was an American opera singer, considered one of the leading mezzo-sopranos of her generation, who also ventured to soprano roles. A pioneer among Af
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followers: 4109
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album: Grace Bumbry - In Memoriam
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album: Wagner: Tannhäuser, WWV 70 (Live) [Orfeo d'Or]
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album: Wagner: Tannhäuser (Recorded Live 1961)
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album: Bizet: Carmen, WD 31 (Live)
  type: MusicAlbum
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album: Wagner: Tannhäuser
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  track: Tannhäuser (Dresden Version), Act II: Dich, teure Halle, grüss ich wieder "Elisabeth's Greeting" - Live at the Bayreuth Festival, 1962
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      date published: 2026-07-08T03:22:41Z
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  track: Tannhäuser (Dresden Version), Act I: Dir töne Lob! Die Wunder sei'n gepriesen - Live at the Bayreuth Festival, 1962
  track: Tannhäuser (Dresden Version), Act I: Stets soll nur dir mein Lied ertönen! - Live at the Bayreuth Festival, 1962
  track: Tannhäuser (Dresden Version), Act II: Freudig begrüssen wir die edle Halle - Live at the Bayreuth Festival, 1962
  track: Tannhäuser (Dresden Version), Act I: Zieh hin, Wahnsinniger, zieh hin! - Live at the Bayreuth Festival, 1962
  track: Tannhäuser (Dresden Version), Act III: O du mein holder Abendstern "O Star of Eve" - Live at the Bayreuth Festival, 1962
  track: Tannhäuser (Dresden Version), Act I: Frau Holda kam aus dem Berg hervor - Live at the Bayreuth Festival, 1962
  track: Tannhäuser (Dresden Version), Act I: Wer ist der dort in brünstigem Gebete? - Live at the Bayreuth Festival, 1962
  track: Tannhäuser (Dresden Version), Act III: Da sank ich in Vernichtung dumpf darnieder – Halt ein! Unsel'ger - Live at the Bayreuth Festival, 1962
  track: Tannhäuser (Dresden Version), Act II: Der Unglücksel'ge, den gefangen - Live at the Bayreuth Festival, 1962
  track: Tannhäuser (Dresden Version), Act I: Geliebter, sag, wo weilt dein Sinn? - Live at the Bayreuth Festival, 1962
  track: Tannhäuser (Dresden Version), Act I: Geliebter, Komm! Sieh dort die Grotte! - Live at the Bayreuth Festival, 1962
album: Verdi: Macbeth (Live)
album: Handel: Messiah - Arias & Choruses
album: Handel: Messiah (Adrian Boult – The Decca Legacy II, Vol. 2)
album: Beethoven: Symphony No. 9 in D Minor, Op. 125 "Choral" (Live)
album: VERDI:MACBETH,(Excerpts), Pedro Lavirgen, Grace Bumbry, Dimitri Nabokov, Cornell MacNeil,Ottavio Ziino.

Tannhäuser (Dresden Version), Act I: Dir töne Lob! Die Wunder sei'n gepriesen - Live at the Bayreuth Festival, 1962
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  date published: 2026-07-08T03:22:41Z
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Tannhäuser (Dresden Version), Act I: Zieh hin, Wahnsinniger, zieh hin! - Live at the Bayreuth Festival, 1962
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  date published: 2026-07-08T03:53:27Z
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Tannhäuser (Dresden Version), Act I: Geliebter, sag, wo weilt dein Sinn? - Live at the Bayreuth Festival, 1962
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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

Tannhäuser (Dresden Version), Act I: Geliebter, Komm! Sieh dort die Grotte! - Live at the Bayreuth Festival, 1962
type: MusicRecording
duration: PT2M23S
duration ms: 143760
explicit: false
by artist: Richard Wagner
by artist: Grace Bumbry
by artist: Bayreuth Festival Chorus
by artist: Bayreuth Festival Orchestra
by artist: Wolfgang Sawallisch
in album: Wagner: Tannhäuser
  type: MusicAlbum
  date published: 1962-01-01
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c0ccef7dfc5155b3a46192a52b2cb519573d4c14d03fd28116b854984a04eb. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/NLA506200608.
  date published: 2026-07-31T23:30:38Z
audio: Tannhäuser (Dresden Version), Act I: Geliebter, Komm! Sieh dort die Grotte! - Live at the Bayreuth Festival, 1962
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.167
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.225
  additional property: Energy
    type: PropertyValue
    value: 0.105
  additional property: Speechiness
    type: PropertyValue
    value: 0.069
  additional property: Acousticness
    type: PropertyValue
    value: 0.933
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.349
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.038
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.678
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: NLA506200608
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960478
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T23:30:38+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506200608
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960478
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960478
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T23:30:38+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

Time Signature
type: PropertyValue
value: 5

Danceability
type: PropertyValue
value: 0.21

Energy
type: PropertyValue
value: 0.219

Speechiness
type: PropertyValue
value: 0.051

Acousticness
type: PropertyValue
value: 0.929

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.656

Valence (Positivity)
type: PropertyValue
value: 0.093

Loudness (dB)
type: PropertyValue
value: -23.046

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major

Tannhäuser (Dresden Version), Act I: Stets soll nur dir mein Lied ertönen! - Live at the Bayreuth Festival, 1962
type: MusicRecording
duration: PT1M35S
duration ms: 95906
explicit: false
by artist: Richard Wagner
by artist: Wolfgang Windgassen
by artist: Bayreuth Festival Orchestra
by artist: Wolfgang Sawallisch
in album: Wagner: Tannhäuser
  type: MusicAlbum
  date published: 1962-01-01
genre: classical
genre: opera
isrc code: NLA506200609
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:35:10+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x143454cbc8df95be8983ba4d82435386d010458245deb8b28d49548369dbd293
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/NLA506200609
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143454cbc8df95be8983ba4d82435386d010458245deb8b28d49548369dbd293. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506200609.
  date published: 2026-07-08T03:20:19Z
audio: Tannhäuser (Dresden Version), Act I: Stets soll nur dir mein Lied ertönen! - Live at the Bayreuth Festival, 1962
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 165.811
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.345
  additional property: Energy
    type: PropertyValue
    value: 0.172
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.965
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.581
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.424
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.875
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Tannhäuser (Dresden Version), Act II: Freudig begrüssen wir die edle Halle - Live at the Bayreuth Festival, 1962
type: MusicRecording
duration: PT7M22S
duration ms: 442840
explicit: false
by artist: Richard Wagner
by artist: Bayreuth Festival Chorus
by artist: Bayreuth Festival Orchestra
by artist: Wolfgang Sawallisch
in album: Wagner: Tannhäuser
  type: MusicAlbum
  date published: 1962-01-01
genre: classical
genre: opera
isrc code: NLA506200619
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T19:01:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x41338ba469b836812f53415afc2270996295da3131fe31bb8f1431eb5d48cf4a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506200619
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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 0x41338ba469b836812f53415afc2270996295da3131fe31bb8f1431eb5d48cf4a. 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/NLA506200619.
  date published: 2026-07-08T03:53:27Z
audio: Tannhäuser (Dresden Version), Act II: Freudig begrüssen wir die edle Halle - Live at the Bayreuth Festival, 1962
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 98.751
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.278
  additional property: Energy
    type: PropertyValue
    value: 0.156
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.923
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.103
  additional property: Liveness
    type: PropertyValue
    value: 0.119
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.157
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.188
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major

Tannhäuser (Dresden Version), Act III: O du mein holder Abendstern "O Star of Eve" - Live at the Bayreuth Festival, 1962
type: MusicRecording
duration: PT2M58S
duration ms: 178666
explicit: false
by artist: Richard Wagner
by artist: Eberhard Wächter
by artist: Bayreuth Festival Orchestra
by artist: Wolfgang Sawallisch
in album: Wagner: Tannhäuser
  type: MusicAlbum
  date published: 1962-01-01
genre: classical
genre: opera
isrc code: NLA506200635
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:11:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x79edcc68f765cd30ec57f8a4adf9612cd0d53717505bdeb7f854ff4957b50573
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506200635
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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 0x79edcc68f765cd30ec57f8a4adf9612cd0d53717505bdeb7f854ff4957b50573. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLA506200635.
  date published: 2026-07-08T03:22:41Z
audio: Tannhäuser (Dresden Version), Act III: O du mein holder Abendstern "O Star of Eve" - Live at the Bayreuth Festival, 1962
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 159.439
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.149
  additional property: Energy
    type: PropertyValue
    value: 0.034
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.944
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.011
  additional property: Liveness
    type: PropertyValue
    value: 0.108
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.102
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.095
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Tannhäuser (Dresden Version), Act I: Frau Holda kam aus dem Berg hervor - Live at the Bayreuth Festival, 1962
type: MusicRecording
duration: PT1M43S
duration ms: 103840
explicit: false
by artist: Richard Wagner
by artist: Else-Margrete Gardelli
by artist: Bayreuth Festival Orchestra
by artist: Wolfgang Sawallisch
in album: Wagner: Tannhäuser
  type: MusicAlbum
  date published: 1962-01-01
genre: classical
genre: opera
isrc code: NLA506200611
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T17:46:47+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x04df10587c249997348e1a01442fb26de952e082e88c9292b10126626dcd6fa7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506200611
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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 0x04df10587c249997348e1a01442fb26de952e082e88c9292b10126626dcd6fa7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLA506200611.
  date published: 2026-07-08T03:22:41Z
audio: Tannhäuser (Dresden Version), Act I: Frau Holda kam aus dem Berg hervor - Live at the Bayreuth Festival, 1962
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 113.065
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.291
  additional property: Energy
    type: PropertyValue
    value: 0.044
  additional property: Speechiness
    type: PropertyValue
    value: 0.057
  additional property: Acousticness
    type: PropertyValue
    value: 0.786
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.499
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.062
  additional property: Loudness (dB)
    type: PropertyValue
    value: -32.577
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Tannhäuser (Dresden Version), Act I: Wer ist der dort in brünstigem Gebete? - Live at the Bayreuth Festival, 1962
type: MusicRecording
duration: PT5M0S
duration ms: 300826
explicit: false
by artist: Richard Wagner
by artist: Josef Greindl
by artist: Wolfgang Windgassen
by artist: Eberhard Wächter
by artist: Gerhard Stolze
by artist: Franz Crass
by artist: Georg Paskuda
by artist: Gerd Nienstedt
by artist: Bayreuth Festival Orchestra
by artist: Wolfgang Sawallisch
in album: Wagner: Tannhäuser
  type: MusicAlbum
  date published: 1962-01-01
genre: classical
genre: opera
isrc code: NLA506200613
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T18:57:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1ad6cb6957af0cc74e70e8ef1aecf43ceff429a7e83ef78b118deea80027e40b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506200613
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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 0x1ad6cb6957af0cc74e70e8ef1aecf43ceff429a7e83ef78b118deea80027e40b. 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/NLA506200613.
  date published: 2026-07-08T03:53:27Z
audio: Tannhäuser (Dresden Version), Act I: Wer ist der dort in brünstigem Gebete? - Live at the Bayreuth Festival, 1962
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.592
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.269
  additional property: Energy
    type: PropertyValue
    value: 0.205
  additional property: Speechiness
    type: PropertyValue
    value: 0.078
  additional property: Acousticness
    type: PropertyValue
    value: 0.934
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.178
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.19
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.334
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Tannhäuser (Dresden Version), Act III: Da sank ich in Vernichtung dumpf darnieder – Halt ein! Unsel'ger - Live at the Bayreuth Festival, 1962
type: MusicRecording
duration: PT3M45S
duration ms: 225506
explicit: false
by artist: Richard Wagner
by artist: Wolfgang Windgassen
by artist: Eberhard Wächter
by artist: Bayreuth Festival Orchestra
by artist: Wolfgang Sawallisch
in album: Wagner: Tannhäuser
  type: MusicAlbum
  date published: 1962-01-01
genre: classical
genre: opera
isrc code: NLA506200639
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T18:11:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3303af50ce039332882e2ad46744596add8af7cc69a5ada8d69686e06435052e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506200639
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
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Handel: Messiah (Adrian Boult – The Decca Legacy II, Vol. 2)
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Beethoven: Symphony No. 9 in D Minor, Op. 125 "Choral" (Live)
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VERDI:MACBETH,(Excerpts), Pedro Lavirgen, Grace Bumbry, Dimitri Nabokov, Cornell MacNeil,Ottavio Ziino.
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