OpenTechnical

OT-2026-000077205

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, single stage ejector, pressure sensor per zone, pulsed blow-off before set-down

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-2026-000077205) never changes.

Identity and time

Publication numberOT-2026-000077205 · never reused
Internal UUID01a0ae94-f508-7110-a709-d29ba8221bc6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077205
StatusPUBLIC

Content hashes

Canonical textb7b4d324ec18656a6c7b7aeceff1f256a91fd8280b0b69e7225028f2122b7332
Markdownf1a36fcbf5a03e75270a79acdedfbbb1d2f515b74821f61acd95c3ce91e7a7f5
PDF
Publication pageb5c0630c3d215b6b158dc2bdb2556012f395cff066cb27292e1b66b1962154ca
Manifestd11b6ea57e804beb839fac8139baf4b178c01664e435a8770709faf1862bbeef

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
SignatureWFfcSAhZdAQ0qhVGqgR7D4o2hS1r0r767vZJmztV+2hSyeqcKj7qv1Uk/GS4ZZFJrUYM7XuWPU7tkQUgnwGvDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:08:48.136003ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077205
observed b5c0630c3d215b6b158dc2bdb2556012...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:48.115160ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077205/manifest.json
observed d11b6ea57e804beb839fac8139baf4b1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:48.093003ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077205/publication.md
observed f1a36fcbf5a03e75270a79acdedfbbb1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:47.999380ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077205/publication.txt
observed b7b4d324ec18656a6c7b7aeceff1f256...
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.