Bruce Hubbard
type: MusicGroup
description: Bruce Hubbard (1952 − 12 November 1991) was an American operatic baritone. A Drama Desk and Laurence Olivier Award nominee for Best Actor, he performed on Broadway, the Metropolitan Opera, BBC televis
popularity: 9
followers: 124
additional property: CopyrightID
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additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3965471102a4374b1e82cf9b3ccf7faa02b118140e6212cf0895659f539fba. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/abd90761-eed6-4f94-bd77-b5f1af055962.json and https://artists.proofprofile.net/proofs/artist/abd90761-eed6-4f94-bd77-b5f1af055962.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T11:51:30Z
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album: Blitzstein: Regina
  type: MusicAlbum
  date published: 1992-12-08
track: Anything Goes, Act I: All Through the Night (Billy, Hope, Sailors)
track: Porter: Anything Goes, Act I: Anything Goes

Anything Goes, Act I: All Through the Night (Billy, Hope, Sailors)
type: MusicRecording
duration: PT6M15S
duration ms: 375533
explicit: false
by artist: Cole Porter
by artist: Frederica von Stade
by artist: Bruce Hubbard
by artist: Ambrosian Chorus
by artist: London Symphony Orchestra
by artist: John McGlinn
in album: Anything Goes - Porter
  type: MusicAlbum
  date published: 1989
isrc code: GBAYC8805122
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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
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66a37a8998af031b7719c8235ad97f8ac107d1161c5b2c939c7c6970ab9b73d. 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/GBAYC8805122.
  date published: 2026-07-08T03:53:27Z
audio: Anything Goes, Act I: All Through the Night (Billy, Hope, Sailors)
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  additional property: Danceability
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  additional property: Speechiness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Porter: Anything Goes, Act I: Anything Goes
type: MusicRecording
duration: PT5M11S
duration ms: 311813
explicit: false
by artist: Cole Porter
by artist: John McGlinn
by artist: Bruce Hubbard
by artist: Bryan Landrine
by artist: Del-Bourree Bach
by artist: Kim Criswell
by artist: Michael B. Wailing
by artist: London Symphony Orchestra
in album: Anything Goes - Porter
  type: MusicAlbum
  date published: 1989
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342df89bd8db52fd663264bf58be795ddbaabfda8f57e8a5d9005212e2c56352. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBAYC8805128.
  date published: 2026-07-31T21:25:57Z
audio: Porter: Anything Goes, Act I: Anything Goes
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  additional property: Danceability
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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