OpenTechnical

OT-2026-000028045

Publication integrity record

Six cup vacuum gripper, six outlet manifold, common isolation valve, pump fed, supply line pressure sensor, sustained 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-2026-000028045) never changes.

Identity and time

Publication numberOT-2026-000028045 · never reused
Internal UUID01a0ae72-a51f-7ca6-8880-316f294150ce · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028045
StatusPUBLIC

Content hashes

Canonical text9068181fef2d2e4ecf9d73e07ff08ba8a58a24e7030e46e7dabc99279cb0c836
Markdown33a59ac092b7f7ed092a8bc0478a702fa964b3888d8a93bb21fe5815db4632a6
PDF
Publication page0f15dbd0efdd6c966ba264adcf1bd648ce57ef6d02d89aff323dbe135c0d1065
Manifestc0f4b0e33fa0dfe851292bec07cc08509e7a14a89b31526cd560ba1b97e092c1

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
Signature/JL8ZGJRygMLbiWTYctUR/LtULTuXXTphO/M0aBpsRDeEGCAOjItmPcuxuKs1ifgO43rdNsK0eXA+OAtqMtpBA==
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

2026-09-17T11:42:22.463626ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028045
observed 0f15dbd0efdd6c966ba264adcf1bd648...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:22.443995ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028045/manifest.json
observed c0f4b0e33fa0dfe851292bec07cc0850...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:22.426363ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028045/publication.md
observed 33a59ac092b7f7ed092a8bc0478a702f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:22.407874ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028045/publication.txt
observed 9068181fef2d2e4ecf9d73e07ff08ba8...
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.