OpenTechnical

OT-2026-000077193

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, pump fed, pressure sensor per zone, 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-2026-000077193) never changes.

Identity and time

Publication numberOT-2026-000077193 · never reused
Internal UUID01a0ae94-f508-7130-b31e-9eed4a30b9c9 · 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-2026-000077193
StatusPUBLIC

Content hashes

Canonical text52b1f4f762c36ab16fe60286099be09d1d4b3f20b185378de0a11367b3ef2883
Markdowna1777b5fd389db711969dd01d14350e926a0e1f42f3745a420ed88dcdf918e3b
PDF
Publication page3feeceeb98da48a101cbb5617ca0d870e0ffbe337f88cfe8c15bb94bbb61082e
Manifest2ff1b548a5ebd9a2e3f3e96795b2f66032f5ab9be685bd3130704859655d5ce8

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
SignaturehwEF2i0V91TYyFxxm8h8t/a9cgDm6faamOXcUrH29y61P+0sAXBnD/nplsKQ0YUulcr+/ZlkYGobAVhBnpTuCg==
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

2026-09-17T10:08:40.087663ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077193
observed 3feeceeb98da48a101cbb5617ca0d870...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:40.070522ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077193/manifest.json
observed 2ff1b548a5ebd9a2e3f3e96795b2f660...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:40.051443ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077193/publication.md
observed a1777b5fd389db711969dd01d14350e9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:40.032767ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077193/publication.txt
observed 52b1f4f762c36ab16fe60286099be09d...
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.