OpenTechnical

OT-2026-000077836

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, vented after 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-2026-000077836) never changes.

Identity and time

Publication numberOT-2026-000077836 · never reused
Internal UUID01a0ae95-2ed0-77b9-8853-de89e34d8889 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:47.703064Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077836
StatusPUBLIC

Content hashes

Canonical text501688869ebdf049e92d8e7e4969e088de68f33a29fac2c2c4b627402d33a713
Markdownea5d07e14ebf5f37cc8f81bef329dda42a4cbae8863e0ec1493f6783b955269a
PDF
Publication paged6b473a7afc24db2b1e86d920d396861db56f1d55fcd475aa08906a355ef5202
Manifest3a80c11c93b7a530101a95eab01e0b860da58c30b61d94f43e01a43492469db6

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
SignaturewR6DenpayyrhzQsBMMTWmQ+Dopcgn2O0RAIivW3A5qOQ/glrOU64FU+73xwCcLoKbs+u1Da/jHm3VJ+AckrdCg==
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

2026-09-17T10:07:26.110251ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077836
observed d6b473a7afc24db2b1e86d920d396861...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:26.091622ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077836/manifest.json
observed 3a80c11c93b7a530101a95eab01e0b86...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:26.072491ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077836/publication.md
observed ea5d07e14ebf5f37cc8f81bef329dda4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:26.053367ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077836/publication.txt
observed 501688869ebdf049e92d8e7e4969e088...
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.