The Four Freshmen
type: MusicGroup
genre: adult standards
genre: doo-wop
genre: vocal jazz
description: The Four Freshmen are an American male vocal quartet founded in the barbershop tradition. Its influences include the big band vocal group sounds of The Modernaires, The Pied Pipers, and The Mel-Tones.
popularity: 32
followers: 24406
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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 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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  date published: 2026-06-12T19:24:56Z
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album: Blue World
  type: MusicAlbum
  date published: 1950-01-01
album: Blue World
  type: MusicAlbum
  date published: 1950-01-01
  track: It's A Blue World
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    by artist: The Four Freshmen
    in album: Blue World
      type: MusicAlbum
      date published: 1950-01-01
    genre: adult standards
    genre: doo-wop
    genre: vocal jazz
    isrc code: GBBLY0604314
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    additional property: OTSTimestamp
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      value: 2026-07-16T19:42:29Z
    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 0x3953e051a352489f8d41808933aaac3fdc9ea44f8b74219105a69b260091eda2. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBBLY0604314.
      date published: 2026-07-16T19:42:29Z
    audio: It's A Blue World
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  track: I'll Be Seeing You
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    duration: PT3M12S
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    in album: Blue World
      type: MusicAlbum
      date published: 1950-01-01
    genre: adult standards
    genre: doo-wop
    genre: vocal jazz
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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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a9923ad59524f5041286067cad37e1b40290de8417222cbd3ac72660728946c. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/GBBLY0604319.
      date published: 2026-07-17T04:32:48Z
    audio: I'll Be Seeing You
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  track: Day By Day
  track: How Can I Tell Her
album: Speak Low
album: How Can I Tell Her / Day by Day (feat. Dick Reynolds and His Orchestra) [Mono Version]
album: Voices In Modern
album: Four Freshmen And 5 Trombones
album: Four Freshmen and 5 Trombones
album: Graduation Day
album: The Four Freshmen
album: Four Freshmen And Five Saxes
album: Four Freshmen and Five Saxes
album: Four Freshmen And 5 Trumpets
album: Voices in Latin (feat. Pete Rugolo and His Orchestra) [Mono Version]
album: The Four Freshmen in Person
album: Voices in Latin (Mono Version)
album: Liza (feat. Pete Rugolo and His Orchestra) [Mono Version]
album: Granada (Mono Version)
album: Voices in Love
album: The Last Time I Saw Paris (Mono Version)
album: The Four Freshmen and Five Guitars
album: Vintage Vocal Jazz / Swing No. 186 - EP: Somebody Loves Me
album: First Affair
album: Voices and Brass
album: Voices in Fun
album: The Freshman Year
album: Opus One (feat. Dick Reynolds and His Orchestra) [Mono Version]
album: Funny How Time Slips Away
album: Capitol Collectors Series
album: The Four Freshmen - Live At Butler University
album: Freshmas!
album: Fresh!
album: Greatest Hits
album: Day By Day
album: Great Gentlemen Of Song / Spotlight On The Four Freshmen
album: In Concert
album: The Best Of The Four Freshmen
album: Voices And Brass
album: The EP Collection
album: The Four Freshman
album: Live in Palm Springs
album: The Four Freshmen At Their Best
album: Live In Holland
album: Give Me The Simple Life
album: Angel Eyes
album: Still Fresh
album: Freshmen Favorites
album: Live in the New Millennium
album: In Session
album: Snowfall
album: Voices in Modern
album: In the Studio: 1950-54
album: Voices in Latin!
album: The Four Freshmen in Person!
album: 4 Freshmen and 5 Trumpets
album: The Very Best of the Four Freshmen
album: Live From Las Vegas
album: Their Very Best
album: Love Lost
album: Four Freshmen and Five Guitars
album: The Four Freshmen & LIVE Trombones
album: Little Girl Blue

Acousticness
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value: 0.88

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.148

Valence (Positivity)
type: PropertyValue
value: 0.195

Loudness (dB)
type: PropertyValue
value: -15.706

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Major

Day By Day
type: MusicRecording
duration: PT1M59S
duration ms: 119826
explicit: false
by artist: The Four Freshmen
in album: Blue World
  type: MusicAlbum
  date published: 1950-01-01
genre: adult standards
genre: doo-wop
genre: vocal jazz
isrc code: GBBLY0604325
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-07-17T19:47:19Z
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70bd86cfcd6a3a1167dbfb121f62ed7639ba2ab527e2510dbc84a7cdd226e6a. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/GBBLY0604325.
  date published: 2026-07-17T19:47:19Z
audio: Day By Day
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  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
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  additional property: Valence (Positivity)
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How Can I Tell Her
type: MusicRecording
duration: PT2M40S
duration ms: 160613
explicit: false
by artist: The Four Freshmen
in album: Blue World
  type: MusicAlbum
  date published: 1950-01-01
genre: adult standards
genre: doo-wop
genre: vocal jazz
isrc code: GBBLY0604326
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-05T10:01:46Z
audio: How Can I Tell Her
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    type: PropertyValue
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Speak Low
type: MusicAlbum
date published: 1950-01-10
track: Love Turns Winter to Spring
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    type: MusicAlbum
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  genre: adult standards
  genre: doo-wop
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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    value: 2026-07-17T23:18:11Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734a7b26b39b89571a2918e6af95ef6f1ca57dd67cbf2d1bf35924f4781f1ac8. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/DEUE12522896.
    date published: 2026-07-17T23:18:11Z
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How Can I Tell Her / Day by Day (feat. Dick Reynolds and His Orchestra) [Mono Version]
type: MusicAlbum
date published: 1955-01-01

Voices In Modern
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date published: 1955-01-01
track: After You
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    type: MusicAlbum
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  genre: adult standards
  genre: doo-wop
  genre: vocal jazz
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957882
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957882
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCA20002193
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-13T16:48:10Z
  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 0xef13f54262b1f2501cced905791a977492e2fb66a87d077df37202f560769c55. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USCA20002193.
    date published: 2026-07-13T16:48:10Z
  audio: After You
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 79.331
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.471
    additional property: Energy
      type: PropertyValue
      value: 0.015
    additional property: Speechiness
      type: PropertyValue
      value: 0.029
    additional property: Acousticness
      type: PropertyValue
      value: 0.97
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.082
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.187
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.728
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Over The Rainbow
  type: MusicRecording
  duration: PT2M21S
  duration ms: 141533
  explicit: false
  by artist: The Four Freshmen
  in album: Voices In Modern
    type: MusicAlbum
    date published: 1955-01-01
  genre: adult standards
  genre: doo-wop
  genre: vocal jazz
  isrc code: USCA20002183
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T22:17:44+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1f1e26fe95af5a68c448daeedbf1b194fdfe0da5f91da1da5273cc535de57b3c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958792
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958792
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCA20002183
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T22:55:52Z
  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 0x1f1e26fe95af5a68c448daeedbf1b194fdfe0da5f91da1da5273cc535de57b3c. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/USCA20002183.
    date published: 2026-07-19T22:55:52Z
  audio: Over The Rainbow
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 82.19
    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: 0.45
    additional property: Energy
      type: PropertyValue
      value: 0.155
    additional property: Speechiness
      type: PropertyValue
      value: 0.029
    additional property: Acousticness
      type: PropertyValue
      value: 0.92
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.658
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.398
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.458
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: The Nearness of You
  type: MusicRecording
  duration: PT3M22S
  duration ms: 202626
  explicit: false
  by artist: The Four Freshmen
  in album: Voices In Modern
    type: MusicAlbum
    date published: 1955-01-01
  genre: adult standards
  genre: doo-wop
  genre: vocal jazz
  isrc code: USCA20002188
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T01:01:38+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0dbeeaed1c19d9971798d4e885d4a8e1e4c4c805e9be70bf3af318919b3d0ca3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: The Nearness of You
track: We'll Be Together Again
track: Mood Indigo
track: It Happened Once Before

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956742

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956742

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCA20002188

OTSTimestamp
type: PropertyValue
value: 2026-07-05T05:07:15Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dbeeaed1c19d9971798d4e885d4a8e1e4c4c805e9be70bf3af318919b3d0ca3. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/USCA20002188.
date published: 2026-07-05T05:07:15Z

The Nearness of You
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 74.842
additional property: Musical Key
  type: PropertyValue
  value: 6
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.424
additional property: Energy
  type: PropertyValue
  value: 0.048
additional property: Speechiness
  type: PropertyValue
  value: 0.031
additional property: Acousticness
  type: PropertyValue
  value: 0.953
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.106
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.173
additional property: Loudness (dB)
  type: PropertyValue
  value: -15.755
additional property: Key Name
  type: PropertyValue
  value: F#
additional property: Mode Name
  type: PropertyValue
  value: Major

We'll Be Together Again
type: MusicRecording
duration: PT3M10S
duration ms: 190693
explicit: false
by artist: The Four Freshmen
in album: Voices In Modern
  type: MusicAlbum
  date published: 1955-01-01
genre: adult standards
genre: doo-wop
genre: vocal jazz
isrc code: USCA20002187
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-16T18:19:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa8a236272bb7dcf5718817b103422f54b6c81077445d3be141ea4e5402712fce
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958316
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958316
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCA20002187
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-16T19:42:29Z
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 0xa8a236272bb7dcf5718817b103422f54b6c81077445d3be141ea4e5402712fce. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USCA20002187.
  date published: 2026-07-16T19:42:29Z
audio: We'll Be Together Again
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 76.372
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.42
  additional property: Energy
    type: PropertyValue
    value: 0.102
  additional property: Speechiness
    type: PropertyValue
    value: 0.027
  additional property: Acousticness
    type: PropertyValue
    value: 0.918
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.135
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.066
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.575
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mood Indigo
type: MusicRecording
duration: PT2M44S
duration ms: 164160
explicit: false
by artist: The Four Freshmen
in album: Voices In Modern
  type: MusicAlbum
  date published: 1955-01-01
genre: adult standards
genre: doo-wop
genre: vocal jazz
isrc code: USCA20002186
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T11:19:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xacee6b0a6d7b08a3c48dd6f3e849bacf5a9e3ef887cd30cc80ffda65af9c5edf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956725
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956725
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCA20002186
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T01:12:41Z
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 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 0xacee6b0a6d7b08a3c48dd6f3e849bacf5a9e3ef887cd30cc80ffda65af9c5edf. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USCA20002186.
  date published: 2026-07-05T01:12:41Z
audio: Mood Indigo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 75.597
  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: 0.561
  additional property: Energy
    type: PropertyValue
    value: 0.172
  additional property: Speechiness
    type: PropertyValue
    value: 0.027
  additional property: Acousticness
    type: PropertyValue
    value: 0.903
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.108
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.337
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.327
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

It Happened Once Before
type: MusicRecording
duration: PT2M30S
duration ms: 150066
explicit: false
by artist: The Four Freshmen
in album: Voices In Modern
  type: MusicAlbum
  date published: 1955-01-01
genre: adult standards
genre: doo-wop
genre: vocal jazz
isrc code: USCA20002181
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-18T22:48:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0843bce1a251d6fdd5d795cc432d0edc8f5fbe75b7534e57640a2dcd20705ba9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958621
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958621
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCA20002181
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-18T22:59:44Z
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 0x0843bce1a251d6fdd5d795cc432d0edc8f5fbe75b7534e57640a2dcd20705ba9. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/USCA20002181.
  date published: 2026-07-18T22:59:44Z
audio: It Happened Once Before
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 82.894
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.438
  additional property: Energy
    type: PropertyValue
    value: 0.145
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.965
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.11
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.279
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.302
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Four Freshmen And 5 Trombones
type: MusicAlbum
date published: 1955-01-01
track: Angel Eyes
  type: MusicRecording
  duration: PT3M33S
  duration ms: 213666
  explicit: false
  by artist: The Four Freshmen
  in album: Four Freshmen And 5 Trombones
    type: MusicAlbum
    date published: 1955-01-01
  genre: adult standards
  genre: doo-wop
  genre: vocal jazz
  isrc code: USCA20002166
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T00:35:46+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc0a362f0b98d9de9633ad435f9f9f04aeed652158ea574b982ef479cad79465b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956634
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956634
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCA20002166
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-04T10:04:33Z
  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 0xc0a362f0b98d9de9633ad435f9f9f04aeed652158ea574b982ef479cad79465b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USCA20002166.
    date published: 2026-07-04T10:04:33Z
  audio: Angel Eyes
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 135.094
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.387
    additional property: Energy
      type: PropertyValue
      value: 0.181
    additional property: Speechiness
      type: PropertyValue
      value: 0.03
    additional property: Acousticness
      type: PropertyValue
      value: 0.859
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.142
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.265
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.41
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Mam'selle
  type: MusicRecording
  duration: PT3M6S
  duration ms: 186000
  explicit: false
  by artist: The Four Freshmen
  in album: Four Freshmen And 5 Trombones
    type: MusicAlbum
    date published: 1955-01-01
  genre: adult standards
  genre: doo-wop
  genre: vocal jazz
  isrc code: USCA20002168
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T05:12:15+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc9cbb29f979aa8d67e1d16983cf3031eeb3412086e0c8dd65fc929c9f7b653b9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956772
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956772
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCA20002168
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T10:01:46Z
  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 0xc9cbb29f979aa8d67e1d16983cf3031eeb3412086e0c8dd65fc929c9f7b653b9. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USCA20002168.
    date published: 2026-07-05T10:01:46Z
  audio: Mam'selle
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 139.758
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.302
    additional property: Energy
      type: PropertyValue
      value: 0.097
    additional property: Speechiness
      type: PropertyValue
      value: 0.03
    additional property: Acousticness
      type: PropertyValue
      value: 0.869
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.126
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.249
    additional property: Loudness (dB)
      type: PropertyValue
      value: -15.134
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: You Stepped Out Of A Dream
  type: MusicRecording
  duration: PT2M18S
  duration ms: 138000
  explicit: false
  by artist: The Four Freshmen
  in album: Four Freshmen And 5 Trombones
    type: MusicAlbum
    date published: 1955-01-01
  genre: adult standards
  genre: doo-wop
  genre: vocal jazz
  isrc code: USCA29201228
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T20:36:00+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe283f9bb14323bd96d5b82acd9c68e41e2a2e72062ed8df2266564a74b12d46a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: You Stepped Out Of A Dream
track: I Remember You
track: Our Love Is Here To Stay

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 959058

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/959058

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCA29201228

OTSTimestamp
type: PropertyValue
value: 2026-07-21T21:09:36Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe283f9bb14323bd96d5b82acd9c68e41e2a2e72062ed8df2266564a74b12d46a. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/USCA29201228.
date published: 2026-07-21T21:09:36Z

You Stepped Out Of A Dream
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 130.943
additional property: Musical Key
  type: PropertyValue
  value: 8
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.424
additional property: Energy
  type: PropertyValue
  value: 0.263
additional property: Speechiness
  type: PropertyValue
  value: 0.042
additional property: Acousticness
  type: PropertyValue
  value: 0.78
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.106
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.309
additional property: Loudness (dB)
  type: PropertyValue
  value: -13.523
additional property: Key Name
  type: PropertyValue
  value: Ab
additional property: Mode Name
  type: PropertyValue
  value: Major

I Remember You
type: MusicRecording
duration: PT3M12S
duration ms: 192000
explicit: false
by artist: The Four Freshmen
in album: Four Freshmen And 5 Trombones
  type: MusicAlbum
  date published: 1955-01-01
genre: adult standards
genre: doo-wop
genre: vocal jazz
isrc code: USCA20002173
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T01:13:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0798adcde308cd57659534af5ddbf94584a34573e366cf99d84ee61ae1cf65d5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956742
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCA20002173
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T05:07:15Z
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 0x0798adcde308cd57659534af5ddbf94584a34573e366cf99d84ee61ae1cf65d5. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/USCA20002173.
  date published: 2026-07-05T05:07:15Z
audio: I Remember You
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 78.761
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.211
  additional property: Energy
    type: PropertyValue
    value: 0.127
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.905
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.099
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.084
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.918
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Our Love Is Here To Stay
type: MusicRecording
duration: PT3M13S
duration ms: 193000
explicit: false
by artist: The Four Freshmen
in album: Four Freshmen And 5 Trombones
  type: MusicAlbum
  date published: 1955-01-01
genre: adult standards
genre: doo-wop
genre: vocal jazz
isrc code: USCA29501478
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-21T09:18:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdc846afadabde523e9e814f6ea91e06b43207b152981c6bebc6515d3218f2ff0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958991
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958991
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCA29501478
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-21T10:04:40Z
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 0xdc846afadabde523e9e814f6ea91e06b43207b152981c6bebc6515d3218f2ff0. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/USCA29501478.
  date published: 2026-07-21T10:04:40Z
audio: Our Love Is Here To Stay
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.812
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.349
  additional property: Energy
    type: PropertyValue
    value: 0.081
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.893
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.112
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.143
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.733
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Four Freshmen and 5 Trombones
type: MusicAlbum
date published: 1956

Graduation Day
type: MusicAlbum
date published: 1956

The Four Freshmen
type: MusicAlbum
date published: 1956

Four Freshmen And Five Saxes
type: MusicAlbum
date published: 1957

Four Freshmen and Five Saxes
type: MusicAlbum
date published: 1957-01-01

Four Freshmen And 5 Trumpets
type: MusicAlbum
date published: 1957-01-01
track: There Will Never Be Another You
  type: MusicRecording
  duration: PT2M1S
  duration ms: 121000
  explicit: false
  by artist: The Four Freshmen
  in album: Four Freshmen And 5 Trumpets
    type: MusicAlbum
    date published: 1957-01-01
  genre: adult standards
  genre: doo-wop
  genre: vocal jazz
  isrc code: USCA29501895
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T22:11:23+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5cdba6b513eb5e83ebe480fcf3e4e661b1f61487b9b0cc83b56dc32ee4cd9c8d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958792
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958792
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCA29501895
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T22:55:52Z
  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 0x5cdba6b513eb5e83ebe480fcf3e4e661b1f61487b9b0cc83b56dc32ee4cd9c8d. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/USCA29501895.
    date published: 2026-07-19T22:55:52Z
  audio: There Will Never Be Another You
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 148.127
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 1
    additional property: Danceability
      type: PropertyValue
      value: 0.575
    additional property: Energy
      type: PropertyValue
      value: 0.294
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.789
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.086
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.83
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.366
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major

Voices in Latin (feat. Pete Rugolo and His Orchestra) [Mono Version]
type: MusicAlbum
date published: 1958-01-01

The Four Freshmen in Person
type: MusicAlbum
date published: 1958-01-01

Voices in Latin (Mono Version)
type: MusicAlbum
date published: 1958-01-01

Liza (feat. Pete Rugolo and His Orchestra) [Mono Version]
type: MusicAlbum
date published: 1958-01-01

Granada (Mono Version)
type: MusicAlbum
date published: 1958-01-01

Voices in Love
type: MusicAlbum
date published: 1958-01-01

The Last Time I Saw Paris (Mono Version)
type: MusicAlbum
date published: 1958-01-01

Voices in Love
type: MusicAlbum
date published: 1958-12-12

The Four Freshmen and Five Guitars
type: MusicAlbum
date published: 1959-01-01

Vintage Vocal Jazz / Swing No. 186 - EP: Somebody Loves Me
type: MusicAlbum
date published: 1959-02-21

First Affair
type: MusicAlbum
date published: 1960-01-01

Voices and Brass
type: MusicAlbum
date published: 1960-01-01

First Affair
type: MusicAlbum
date published: 1960-01-20

Voices in Fun
type: MusicAlbum
date published: 1961

The Freshman Year
type: MusicAlbum
date published: 1961-01-20

Opus One (feat. Dick Reynolds and His Orchestra) [Mono Version]
type: MusicAlbum
date published: 1962

Funny How Time Slips Away
type: MusicAlbum
date published: 1964-01-01

Capitol Collectors Series
type: MusicAlbum
date published: 1991

Capitol Collectors Series
type: MusicAlbum
date published: 1991-01-01
track: The Day Isn't Long Enough - Remastered
  type: MusicRecording
  duration: PT2M55S
  duration ms: 175333
  explicit: false
  by artist: The Four Freshmen
  in album: Capitol Collectors Series
    type: MusicAlbum
    date published: 1991-01-01
  genre: adult standards
  genre: doo-wop
  genre: vocal jazz
  isrc code: USCA28901273
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T13:29:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc0c217255935cba58f751dbb3da2324db710f39052abedda29026ca0d83c561d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958422
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958422
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCA28901273
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T13:35:31Z
  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 0xc0c217255935cba58f751dbb3da2324db710f39052abedda29026ca0d83c561d. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCA28901273.
    date published: 2026-07-17T13:35:31Z
  audio: The Day Isn't Long Enough - Remastered
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 84.251
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.512
    additional property: Energy
      type: PropertyValue
      value: 0.065
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.916
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.123
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.226
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.608
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Poinciana (Song Of The Tree) - Remastered
  type: MusicRecording
  duration: PT3M11S
  duration ms: 191906
  explicit: false
  by artist: The Four Freshmen
  in album: Capitol Collectors Series
    type: MusicAlbum
    date published: 1991-01-01
  genre: adult standards
  genre: doo-wop
  genre: vocal jazz
  isrc code: USCA28901274
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T04:23:16+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x48b8ddf0ac52db6bf406674192187a53835cd429b2548c21e9ff2dc593a2ce76
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958823
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958823
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCA28901274
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T04:29:18Z
  additional property: OTSVerifyInstructions
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    date published: 2026-07-20T04:29:18Z
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track: Graduation Day - Remastered 1989

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date published: 2026-07-05T10:01:46Z

It Never Occurred To Me - Remastered
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Graduation Day - Remastered 1989
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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audio: Graduation Day - Remastered 1989
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The Four Freshmen - Live At Butler University
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date published: 1992

Freshmas!
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Fresh!
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Greatest Hits
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Day By Day
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Great Gentlemen Of Song / Spotlight On The Four Freshmen
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date published: 1996-01-01
track: Pennies From Heaven - Remastered
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In Concert
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date published: 1998-01-01

The Best Of The Four Freshmen
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Voices And Brass
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Voices In Modern
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The EP Collection
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The Four Freshman
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Live in Palm Springs
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Voices in Fun
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The Four Freshmen At Their Best
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Live In Holland
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Give Me The Simple Life
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Angel Eyes
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Still Fresh
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Freshmen Favorites
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Live in the New Millennium
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In Session
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Snowfall
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Voices in Modern
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In the Studio: 1950-54
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Four Freshmen and 5 Trombones
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Voices in Latin!
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Freshmen Favorites
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Four Freshmen and Five Saxes
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The Four Freshmen in Person!
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4 Freshmen and 5 Trumpets
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Graduation Day
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Graduation Day
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The Very Best of the Four Freshmen
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Live From Las Vegas
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Their Very Best
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Graduation Day
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Love Lost
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Greatest Hits
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Voices In Modern
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Four Freshmen and Five Guitars
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The Four Freshmen & LIVE Trombones
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Little Girl Blue
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Love Lost
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Voices in Modern
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Four Freshmen And Five Guitars
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Four Freshmen And Five Guitars
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Voices in Modern
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Four Freshmen And Five Guitars And Voices In Brass
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Four Freshmen And Five Guitars And Voices In Brass
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First Affair
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First Affair
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Day by Day
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Greatest Hits
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Vocal Memories
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Voices In Fun
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Voices In Fun
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Absolutely The Best of The Four Freshman
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date published: 2012-03-05

And 5 Trombones + and 5 Saxes (Bonus Track Version)
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date published: 2012-03-09

Graduation Day - Four Complete Albums
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date published: 2012-04-29
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50 Greatest Hits
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Four Freshmen & 52 Tracks
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Love Songs
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  subject of: OpenTimestamps Proof of Existence
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-18T07:54:29Z
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track: A Nightingale Sang in Berkeley Square
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  subject of: OpenTimestamps Proof of Existence
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OTSVerificationAPI
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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

OpenTimestamps Proof of Existence
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date published: 2026-07-21T15:22:58Z

A Nightingale Sang in Berkeley Square
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The Four Freshmen Day By Day
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  additional property: OTSVerifyInstructions
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    date published: 2026-07-03T19:59:51Z
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Live
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date published: 2012-11-01

Happy Talk
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Love & Love Lost
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Graduation Day
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Time Was
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The Four Freshmen: 5 Trombones & 5 Trumpets
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date published: 2013-02-26

First Affair
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The Ep Collection
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The 4 Freshmen
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Voices in Modern
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Fools Rush In
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Somebody Loves Me
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You Stepped out of a Dream
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Live At the Franklin Theatre
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date published: 2014-02-11

Street of Dreams
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Speak Low
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Angel Eyes
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The Essential of the Four Freshmen
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Paper Moon
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Teach Me Tonight
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date published: 2014-11-29

Refreshed, Re-Mastered, Re-Recorded
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Gleamy and Glow
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date published: 2014-12-12

Walk Along
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Day by Day (Ultimate Legends Presents Four Freshmen)
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The Collection Vol. 1
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The Greatest Hits Collection
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Four Freshmen and Friends (Live)
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date published: 2015-07-04
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-06T01:25:57Z
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Day by Day
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Lullaby In Rhythm
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ヴォイシズ・イン・モダン
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Day By Day And Candy
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Fools Rush In
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The Four Freshman Live In Concert
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date published: 2017-11-15

Paper Moon
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Stars in Our Eyes
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In Person
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The Four Freshmen & Five Saxes
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The Swingers
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date published: 2018-11-02

Four Classic Albums (The Four Freshmen & Five Saxes / In Person / The Swingers / Stars in Our Eyes) (Digitally Remastered)
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date published: 2018-11-02

Angel Eyes
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date published: 2018-12-07

ラヴ・ロスト
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date published: 2018-12-29

Collection 1951-62
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date published: 2019-03-08

The Four Freshmen (Live)
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Les idoles de la musique américaine : The Four Freshmen, Vol. 1
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Sing Their Classic Hits (Remastered)
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Les Idoles De La Musique Américaine: The Four Freshmen, Vol. 2
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(Ain't Seen) Nothin' Like You
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Let Me Love You
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Frenesi - Two Classic Albums
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Our Latin Vibes
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フレッシュメン・フェイヴァリッツ
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The Barbershop Tradition
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Graduation Day
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Two of a Kind: The Four Freshmen & Margaret Whiting
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The Four Freshmen
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Two of a Kind: The Four Lads & The Four Freshmen
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The Complete Collection
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10 Hits of The Four Freshmen
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Vocal Hits
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Street of Dreams
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You Stepped out of a Dream
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Essential Classics, Vol. 92: The Four Freshmen
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When You're Smiling (Take 2)
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The Four Freshmen Featuring Emmet Cohen. Russell Hall, & Kyle Poole, Vol. 1
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The Four Freshmen Featuring Emmet Cohen, Russell Hall, & Kyle Poole, Vol. 2
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audio: Cry Me a River
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When You're Smiling (Take 1)
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by artist: The Four Freshmen
in album: The Four Freshmen Featuring Emmet Cohen, Russell Hall, & Kyle Poole, Vol. 2
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  date published: 2025-06-20
genre: adult standards
genre: doo-wop
genre: vocal jazz
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audio: When You're Smiling (Take 1)
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Then I'll Be Happy
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date published: 2025-07-14

The Four Freshmen Live - Celebrating 50 Years (A Waze Clearwater Jazz Concert)
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date published: 2025-08-29