Marlon Brando
type: MusicGroup
description: Marlon Brando Jr. (April 3, 1924 – July 1, 2004) was an American actor. Widely regarded as one of the greatest and most influential performers in the history of cinema, he has received numerous accola
popularity: 6
followers: 1248
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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 0x61407c94098ca5c1111888c3d43d0217dd7824dca6752ed3d42a93b17d12bafa. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/adccf4da-9a2f-4bd2-8414-aeb14bab0d56.json and https://artists.proofprofile.net/proofs/artist/adccf4da-9a2f-4bd2-8414-aeb14bab0d56.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T12:10:20Z
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album: Julius Caesar
  type: MusicAlbum
  date published: 2008-03-05
album: Guys And Dolls (Original Film Soundtrack)
  type: MusicAlbum
  date published: 2011-11-25
album: Luck Be a Lady
  type: MusicAlbum
  date published: 2012-03-16
track: Luck Be a Lady

Luck Be a Lady
type: MusicRecording
duration: PT3M1S
duration ms: 181906
explicit: false
by artist: Marlon Brando
in album: Classics from American Film
  type: MusicAlbum
  date published: 2013-01-28
popularity: 0
isrc code: SEWDL9840732
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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 0x82411752a2260575d1051fc9d4d4e47d3745b9463888382147c528e314b9e7f8. 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/SEWDL9840732.
  date published: 2026-07-08T03:53:27Z
audio: Luck Be a Lady
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  additional property: Danceability
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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