OpenTechnical

OT-2026-000004635

Publication integrity record

Porous face vacuum gripper, common isolation valve, two outlet manifold, ejector fed, pressure verified

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-2026-000004635) never changes.

Identity and time

Publication numberOT-2026-000004635 · never reused
Internal UUID01a0a91e-65a7-7d99-9667-ae99b343a324 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:28:56.745717Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004635
StatusPUBLIC

Content hashes

Canonical text91c63852b1aea47af8b64c3470fdcc48bc957f6d53cf6aec907ea0dce2c6cf8d
Markdowne78ee734e6fb7988348ca8ac420f080bae8431e5545b767d652dd27ede10f9a4
PDF
Publication pagea369101e34d03ad745e67fbef78fe2ba0f2bdf4dba15d4918074f977caaec9c9
Manifestc3df5e721341550c6c973b997c62341b0c73702126825daa31b27ea751217e8c

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
SignatureBxsOdoLtY5LrhTkOOe2/dqx3rLVzyqnFlFU65KiAkR21LMDGlqKTZrIurY9t1BsLFtlq+3o1tVgaw2LPq27ZAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:47:02Z
batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof
root e1b42dfa4cd0fb1e3e472afd2db961c2...

Independent retrieval

2026-09-16T07:30:06.697233ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004635
observed a369101e34d03ad745e67fbef78fe2ba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:06.684671ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004635/manifest.json
observed c3df5e721341550c6c973b997c62341b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:06.672830ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004635/publication.md
observed e78ee734e6fb7988348ca8ac420f080b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:06.657164ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004635/publication.txt
observed 91c63852b1aea47af8b64c3470fdcc48...
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.