OpenTechnical

OT-2026-000031851

Publication integrity record

Three cup vacuum gripper, three zone face, four outlet manifold, single stage ejector, pulsed 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-2026-000031851) never changes.

Identity and time

Publication numberOT-2026-000031851 · never reused
Internal UUID01a0ae74-bad1-7a8a-95b3-412cf3befc29 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:20.739935Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031851
StatusPUBLIC

Content hashes

Canonical texta52536f36f23811329a523a76191796e78c85ca51079e832a9928fb04013467f
Markdown96b14041ee399f23b65ef2e7237c7bc18a9c3b1667aea51092b1c3359c3f3e69
PDF
Publication pagebb073b14f10bf0d4a5293c1707812f5ef9282aa84ce4dace924e91202496682a
Manifestefc26f3222e3763a199161301dbce7f76bbaa0956e141fe6d850560e2ac50767

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
Signaturewpk/by6/88tYKhIYWNovZtkICftOYn2Y12tOz1UpCkUkEXKZWhuq470q0CB3ilXGLwA8lvVgbmPu2/VA7HM0BA==
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

2026-09-17T11:35:06.293570ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031851
observed bb073b14f10bf0d4a5293c1707812f5e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:06.273857ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031851/manifest.json
observed efc26f3222e3763a199161301dbce7f7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:06.254440ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031851/publication.md
observed 96b14041ee399f23b65ef2e7237c7bc1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:06.236453ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031851/publication.txt
observed a52536f36f23811329a523a76191796e...
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.