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type: MusicGroup
genre: chamber music
popularity: 3
followers: 16
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-21T04:51:12Z
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track: I. Preludio. Largo

I. Preludio. Largo
type: MusicRecording
duration: PT2M33S
duration ms: 153600
explicit: false
by artist: Giovanni Mossi
by artist: Augusta McKay Lodge
by artist: Doug Balliett
by artist: Adam Cockerham
by artist: Elliot Figg
in album: Italian Classical Masterpieces
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  date published: 2025-06-14
isrc code: HKI192003101
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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
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188016865ea6a105ff9711eb372a356d37346bb527234e8338d865632d87ec11. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/HKI192003101.
  date published: 2026-07-02T05:09:12Z
audio: I. Preludio. Largo
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  additional property: Key Name
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