Observed arrival · 2026-09-01
Sealedlog Keeps a Private Timestamp on Your Work
A private file-fingerprint service that records what you made and when, then lets you share selected records by link.
Field notes
Sealedlog hashes an uploaded file with SHA-256, pairs the fingerprint with a user note and a server-generated UTC timestamp, and keeps the record private by default. The timestamp cannot be manually selected, while optional sharing exposes a record to anyone holding its link. The site also states that fingerprints are anchored to Bitcoin, but the homepage does not show a verification artifact. Its terms of use are unusually explicit: these records document files and dates rather than establish copyright, ownership, or legal priority.
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Editorial observations of this landing page, not a rating.
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