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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-22T02:53:59Z
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track: Die Zauberflöte, K. 620, Act I: No. 1, Zu Hilfe! Zu Hilfe! – Dialogue. Wo bin ich?
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  by artist: Wolfgang Amadeus Mozart
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  by artist: Yvonne Minton
  by artist: Wiener Philharmoniker
  by artist: Sir Georg Solti
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    date published: 1971-01-01
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  genre: classical-era
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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
  subject of: OpenTimestamps Proof of Existence
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dabe98a6344b41ccef30840c49b32eed01151e5ec2682a543d45fb9793ea8a7. 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/GBF076940102.
    date published: 2026-07-08T03:20:19Z
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track: Die Zauberflöte, K. 620, Act I: No. 2, Der Vogelfänger bin ich ja – Dialogue. He da!
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    date published: 1971-01-01
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
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track: Die Zauberflöte, K. 620, Act II: No. 21, Finale: f. Papagena! Weibchen! Täubchen!

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Die Zauberflöte, K. 620, Act II: No. 21, Finale: f. Papagena! Weibchen! Täubchen!
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by artist: Hanneke Van Bork
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
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