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Document seal

A call for founding authors (video, English)

by Stefania Overman ✓ signed with granted key 3391cebb120892c6sealed 2026-09-07block #29

“The founding-author call, narrated by the founder and published on the @HeartwoodLibrary YouTube channel. Any copy of the file verifies against this fingerprint, forever. The written call is sealed as block #28.”

Sealed document: founding-call-en.mp4 (the document itself is not published; its sha256 fingerprint below is what the author sealed).

seal id: 9e99813b4386ffa28226d06e00b58333efc943b288fed97c59070f6797b99153
statement sha256: 663b1789119b87d28e88e93e390c8d456a652bfa4dde0b21bad1ad189665ab89
document sha256: d7d48e2b3582152b5fd1ad45e9645d4862f61c403769c11c3d7b32fc72b7b1d0
signing key: 3391cebb120892c6 (Ed25519, granted on chain in block #8)

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Proof bundle (JSON)Independent verifier (node)Signed chain tipRaw chainOpen protocol spec

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<a href="https://heartwoodlibrary.org/seal/9e99813b4386ffa28226d06e00b58333efc943b288fed97c59070f6797b99153"><img src="https://heartwoodlibrary.org/badge/9e99813b4386ffa28226d06e00b58333efc943b288fed97c59070f6797b99153.svg" alt="Sealed in Heartwood Library" width="252" height="36"></a>

Sealed in Heartwood Library

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