OpenTechnical

OT-2026-000081355

Publication integrity record

Two bellows cup vacuum gripper, two zone face, two outlet manifold, pump fed, 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-2026-000081355) never changes.

Identity and time

Publication numberOT-2026-000081355 · never reused
Internal UUID01a0ae96-f375-7aeb-a315-1e7489fed512 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:43.461344Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081355
StatusPUBLIC

Content hashes

Canonical texte6619a4e7e931c7ebd2dda5f02e3fde5ea6ff33879a2ec9ac1714cc8672e804c
Markdownc6d21c9c09ce4664ef1a16eedee22e2ac8072e5627288daea674fdc2ff6ae170
PDF
Publication page546b708039658608a791e4c334290f6408148aaa82c99fa4a68a54ef72282bdc
Manifest950ef12220cb8b61afa3ac414af9950971de99a78f3947c94c62c052f63ea592

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
Signatureoj1fpR4KW5Q8lCERLQMstVvzI4+rSAKVNaraWbNebwmRtZ+mQn/hU7pLIagprUTDvPTIyedB8x72wkiLSTqXDA==
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

2026-09-17T10:01:29.076396ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081355
observed 546b708039658608a791e4c334290f64...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:29.058339ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081355/manifest.json
observed 950ef12220cb8b61afa3ac414af99509...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:29.039842ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081355/publication.md
observed c6d21c9c09ce4664ef1a16eedee22e2a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:29.020001ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081355/publication.txt
observed e6619a4e7e931c7ebd2dda5f02e3fde5...
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.