OpenTechnical

OT-2026-000091391

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, single stage ejector, pressure sensor per zone, sustained 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-2026-000091391) never changes.

Identity and time

Publication numberOT-2026-000091391 · never reused
Internal UUID01a0ae9c-f16d-7836-bc7a-22b19daaa32e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091391
StatusPUBLIC

Content hashes

Canonical texta472663bbd402cc3f007221e9a08ad82be3c3ad49f13eee235f1ba6163627e8b
Markdown8a7a9db7f5ce6467d80180f4addd4dee410f1b735909b17afa4661e149e18496
PDF
Publication page4577d2c90901689fcfeadbbadcc39f46376ca09ea76aaf5d6e9e636de03c65b1
Manifest60054e3e0fa24659a4cbeeb7abe5fb1fe99ed63715f1206b0cd1d1099bfc7f99

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
SignatureaexZkPxjc2P/Y8Yp4Mf+zb75nTxAwyBu3G/VFTLhDDGDhpQSAau+2cOgw5Nh6IZVBHfaiZuczxcb8d/3cq7+Aw==
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

2026-09-17T09:43:36.926985ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091391
observed 4577d2c90901689fcfeadbbadcc39f46...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:36.910597ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091391/manifest.json
observed 60054e3e0fa24659a4cbeeb7abe5fb1f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:36.893829ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091391/publication.md
observed 8a7a9db7f5ce6467d80180f4addd4dee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:36.876597ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091391/publication.txt
observed a472663bbd402cc3f007221e9a08ad82...
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.