OpenTechnical

OT-2026-000030067

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, pump fed, 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-2026-000030067) never changes.

Identity and time

Publication numberOT-2026-000030067 · never reused
Internal UUID01a0ae73-ac4a-7533-ab2f-66ef82521002 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:11.501096Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000030067
StatusPUBLIC

Content hashes

Canonical text31e6e9b323ee6851fdc0f191bf50f94d74da4cf0bc9905b296f07c8c41cc5445
Markdown6909e9f55143dd75613bc1574625abd89ed868fd0e429963ceedb50fe9441139
PDF
Publication page778822cfee6e35a3c6bc0b2c624c9b474a11d74614669aa76a925c3a64f995e3
Manifest88d0e546082cca09357c447787ea3b23160adcdd4994b4df12aab27c6983cc6c

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
SignaturekbPU1Lgm948rlrTnHFQI35thM+RZ0Ltc9ReTopEpoP3Mw/YJTyjlKip/cvpijTErXYxUPiusU0Xq37NSTHYZBQ==
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

2026-09-17T11:38:48.612114ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030067
observed 778822cfee6e35a3c6bc0b2c624c9b47...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:48.594502ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030067/manifest.json
observed 88d0e546082cca09357c447787ea3b23...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:48.576957ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030067/publication.md
observed 6909e9f55143dd75613bc1574625abd8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:48.559665ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030067/publication.txt
observed 31e6e9b323ee6851fdc0f191bf50f94d...
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.