OpenTechnical

OT-2026-000000028

Publication integrity record

Constant Force Spring Take-Up with Travel Indication

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000000028) never changes.

Identity and time

Publication numberOT-2026-000000028 · never reused
Internal UUID01a0a672-14e4-7b01-85f3-ebfc78d1e5ea · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:01:29.447649Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000028
StatusPUBLIC

Content hashes

Canonical texta32fe9ea22e8932a86d2e1b059de318bb489978f4b5b172d90a0742c6bacf516
Markdownee72d0c2967305592754b0f266d9acd285d3af0ba92121a0b1ce0dd40369a067
PDF
Publication pagec6584b9ca324e4c7f68e13b86d699ca90e8bb5aa75a7cd1c46e4a90d555127ce
Manifest7f785e0c3bfe570398c30a0ed99764e97444e63b32ebd0bd9b37021570eeb196

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignaturebyvTPShwkGHcrXwNVSj13g4o3BG4/OZNQ1r/PIC/XV3hQ3A2WVn81OfdlrFxekczUeSQtxL893WTsrXpW3K2Cw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:07:03Z
batch OT-TS-2026-W38-001 · RFC 3161 token · inclusion proof
root 6369baadb1a246009d149835804d20ba...

Independent retrieval

2026-09-16T00:43:12.139065ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000028
observed c6584b9ca324e4c7f68e13b86d699ca9...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T00:43:11.954807ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000028/manifest.json
observed 7f785e0c3bfe570398c30a0ed99764e9...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T00:43:11.753545ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000028/publication.md
observed ee72d0c2967305592754b0f266d9acd2...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T00:43:11.529590ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000028/publication.txt
observed a32fe9ea22e8932a86d2e1b059de318b...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T21:12:40.896891ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000028
observed c6584b9ca324e4c7f68e13b86d699ca9...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T21:12:40.769995ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000028/manifest.json
observed 7f785e0c3bfe570398c30a0ed99764e9...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T21:12:40.615139ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000028/publication.md
observed ee72d0c2967305592754b0f266d9acd2...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T21:12:40.485902ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000028/publication.txt
observed a32fe9ea22e8932a86d2e1b059de318b...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent