The Decca Mixed Choir
type: MusicGroup
popularity: 2
followers: 7
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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 0x6089c12982568e2e311e298ad284ef19867cb79f09a27f7f944dbccd6b9800b4. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0b0e2064-0729-4b9f-a2b9-cf3c16056aee.json and https://artists.proofprofile.net/proofs/artist/0b0e2064-0729-4b9f-a2b9-cf3c16056aee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
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track: Nobody Knows De Trouble I've Seen

Nobody Knows De Trouble I've Seen
type: MusicRecording
duration: PT3M8S
duration ms: 188880
explicit: false
by artist: Louis Armstrong
by artist: The Decca Mixed Choir
in album: Satchmo: The Decca And Verve Years 1924-1967
  type: MusicAlbum
  date published: 2020-04-01
genre: jazz
genre: soul
genre: adult-standards
genre: vocal-jazz
genre: jazz-trumpet
genre: dixieland
genre: harlem-renaissance
genre: new-orleans-jazz
genre: swing
genre: big-band
genre: swing-music
isrc code: USMC13863984
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additional property: OTSVerificationAPI
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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
additional property: ProofProfileEvidenceStatus
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616e40186355cbcd4d153b0a5da6da851d921b51fcc59eadad4c985aa353c933. 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/USMC13863984.
  date published: 2026-07-08T03:20:19Z
audio: Nobody Knows De Trouble I've Seen
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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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