Document seal

Demo video: Library tour

by Stefania Overman ✓ signed with granted key 3391cebb120892c6sealed 2026-09-07block #20

“Official Heartwood Library demonstration video, published on the @HeartwoodLibrary YouTube channel. Any copy of the file can be verified against this fingerprint, forever.”

Sealed document: demo1-library-tour.mp4 (the document itself is not published; its sha256 fingerprint below is what the author sealed).

seal id: 9895f721ec25ca7560e60c14de9bc9beabdcef3ae08ec8921f81da140a26d7dd

statement sha256: ef4ff2ccf8d6e29fb2141ea10eb4fd56021e173c0dce506702400f30a0d17ec4

document sha256: 971c0fbcdb1a3e5ae0179b9e39130b175a9ec4949aee07e3528bf8e49bac40c7

signing key: 3391cebb120892c6 (Ed25519, granted on chain in block #8)

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Proof bundle (JSON)Independent verifier (node)Signed chain tip Raw chain Open protocol spec

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<a href="https://heartwoodlibrary.org/seal/9895f721ec25ca7560e60c14de9bc9beabdcef3ae08ec8921f81da140a26d7dd"><img src="https://heartwoodlibrary.org/badge/9895f721ec25ca7560e60c14de9bc9beabdcef3ae08ec8921f81da140a26d7dd.svg" alt="Sealed in Heartwood Library" width="252" height="36"></a>

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