OpenTechnical

OT-2026-000031950

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, common isolation valve, two stage ejector, pulsed blow-off after 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-2026-000031950) never changes.

Identity and time

Publication numberOT-2026-000031950 · never reused
Internal UUID01a0ae74-bad2-7837-ab34-aaf213484cb5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:20.739935Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031950
StatusPUBLIC

Content hashes

Canonical text562200bfad9ba0663d72698e9e3c0973052548624df5284ab401bc66282dac9f
Markdownb53f5fe5ef371eedd73c4a2cd7ecd8b00051fb74e852971ee59f42fd23909ec8
PDF
Publication page242d052c9f23a1a664e5dfbcbf2704ac495eb6e0c6fe0ed57ed9a026877a70ac
Manifest046f322e6f95689109d73695c98465753f665a7cc1ebc8f67c1882bff7a4b001

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
Signature9jdar7MFsmgRuYz89ZpxkXmNNAtzuHDYN49UDg0QPutn5z6QFGHl0PDQugXt9SafckBJsFIToFrCRWoUkrlTAQ==
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

2026-09-17T11:35:14.148535ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031950
observed 242d052c9f23a1a664e5dfbcbf2704ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:14.130125ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031950/manifest.json
observed 046f322e6f95689109d73695c9846575...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:14.112018ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031950/publication.md
observed b53f5fe5ef371eedd73c4a2cd7ecd8b0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:14.093199ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031950/publication.txt
observed 562200bfad9ba0663d72698e9e3c0973...
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.