OpenTechnical

OT-2026-000077255

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, two stage ejector, 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-2026-000077255) never changes.

Identity and time

Publication numberOT-2026-000077255 · never reused
Internal UUID01a0ae94-f508-7352-8cd0-f1a1ec2ed67e · 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-2026-000077255
StatusPUBLIC

Content hashes

Canonical textcd691c6ec0876a11b981840f732477a125040cf7f11299f759fe6e9ea310eac6
Markdowndf8db889e4663ab5106fa73a94d59ff1f582d1463eeacad6bd43b23bfb701fc8
PDF
Publication page5d2ce56b3482a77bfbd735683576eb5d59b9e30722eef8e6c7c48ed7c393a212
Manifestd591ba600ae563c0973e2049945d5c264e01a3d7dea6d6f3d5f8df319cbc3966

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
Signatures7eC4JPX3cgrnrW2Duo7MeGs6YTp4nBtrjQNjmqTWpa/UG5iL6NDdF5D4d44VmDD0FRGYpChGPS8eOxdzBlwBg==
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

2026-09-17T10:08:52.618735ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077255
observed 5d2ce56b3482a77bfbd735683576eb5d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:52.598695ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077255/manifest.json
observed d591ba600ae563c0973e2049945d5c26...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:52.525704ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077255/publication.md
observed df8db889e4663ab5106fa73a94d59ff1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:52.443726ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077255/publication.txt
observed cd691c6ec0876a11b981840f732477a1...
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.