OpenTechnical

OT-2026-000017546

Publication integrity record

Foam pad vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, pulsed blow-off before set-down, on a tool changer

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-2026-000017546) never changes.

Identity and time

Publication numberOT-2026-000017546 · never reused
Internal UUID01a0ae6e-76ca-751f-8655-a8b32977b4ae · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:30.105855Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000017546
StatusPUBLIC

Content hashes

Canonical text2f33a64ce1d24a6370551b686c1f08dfa278335dd5f049a33ab11b4174373e04
Markdown1e2cb1ef86a81d72eae27599a091df9e37986391c72244bcf71cccc0e5b409c4
PDF
Publication page6d8ed5e46ad5650ca04e4034c77c3985b75f640e9c91f0ed7faf31ee66c4c3ea
Manifest75a6194366fa5a8489e6e98774b14d8a9251d09f38562b904a8a7d739e46019e

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
SignaturewvStkjkR3MoAr7RX3I5WEFItER7viMwPG0pWg53XK/2iZw+tobpY4hBfjuAHwyXEm+Q31wrb3mcnHu4mRS3RAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:02:42.658832ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017546
observed 6d8ed5e46ad5650ca04e4034c77c3985...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:42.640616ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017546/manifest.json
observed 75a6194366fa5a8489e6e98774b14d8a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:42.622939ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017546/publication.md
observed 1e2cb1ef86a81d72eae27599a091df9e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:42.604774ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017546/publication.txt
observed 2f33a64ce1d24a6370551b686c1f08df...
fetched by instance-3.rotem.ai from 34.69.0.72, 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

Custody packagePending Custody packages are produced weekly.