OpenTechnical

OT-2026-000028613

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, plant vacuum fed, manifold pressure sensor, sustained blow-off before 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-2026-000028613) never changes.

Identity and time

Publication numberOT-2026-000028613 · never reused
Internal UUID01a0ae72-e2f9-79fd-94df-5f4061db2134 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028613
StatusPUBLIC

Content hashes

Canonical texta2aae379c1e03c0fd37224a619ea81f772bdba4b9c4268afc035bd2f6e21a91d
Markdown84493ffd2e1e670606861784474bc9297c352fe147edceb93ec1fe63f48d8aa8
PDF
Publication pagea1dba1d6ee91fcf1de73ca23d0ad3cbd6c09afaa46689cd21c0306d11a688238
Manifestd3d611ccefe677b127d8c7c2bdbe0494781eb813bfdd99def5398b73bae4fa75

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
SignaturevGbgR1aIALqeo11ozbxmKamfGdYmakKuQGnK5swxersYEJHPPf/tyPkflED39OTaHDtD3PWJARI+O4E37s/bCw==
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

2026-09-17T11:41:28.538757ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028613
observed a1dba1d6ee91fcf1de73ca23d0ad3cbd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:28.519111ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028613/manifest.json
observed d3d611ccefe677b127d8c7c2bdbe0494...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:28.500547ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028613/publication.md
observed 84493ffd2e1e670606861784474bc929...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:28.481632ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028613/publication.txt
observed a2aae379c1e03c0fd37224a619ea81f7...
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.