OpenTechnical

OT-2026-000103881

Publication integrity record

Foam pad vacuum gripper, three zone face, per zone isolation, pump fed, 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-2026-000103881) never changes.

Identity and time

Publication numberOT-2026-000103881 · never reused
Internal UUID01a0aea5-15e7-7835-a6fe-7c4d8af152d0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:14:09.781581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000103881
StatusPUBLIC

Content hashes

Canonical text38dbd4f505a4a4918adf7fe2cae6ae5dc7ec547b9a0f61efb402a55a8b23b5cd
Markdown4b7f3d765686b68693ceb070b6eb446724a7a1fb13bf2dab505f052d0f832f4b
PDF
Publication page9e3f637c89975d9eb11779236da4d285d67348da42c23b774b65b7ba01c16012
Manifest99ae08532c9d86944a0e396be1a05976364659247a4c042dd28ba54453d2143d

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
SignatureY6+cQoM+f45sxWw3nYpQFKaPq0Hey5sApGaTC91C+uRIxVE7buO5sdb9suDvbbqGQeNJ6aQRk8hXfMD0jqnsCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:21:52.053545ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103881
observed 9e3f637c89975d9eb11779236da4d285...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:52.037528ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103881/manifest.json
observed 99ae08532c9d86944a0e396be1a05976...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:52.019705ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103881/publication.md
observed 4b7f3d765686b68693ceb070b6eb4467...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:52.001810ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103881/publication.txt
observed 38dbd4f505a4a4918adf7fe2cae6ae5d...
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.