OpenTechnical

OT-2026-000087394

Publication integrity record

Four bellows cup vacuum gripper, four zone face, six 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-2026-000087394) never changes.

Identity and time

Publication numberOT-2026-000087394 · never reused
Internal UUID01a0ae9a-cd4f-7351-bc0c-814ce3759f04 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087394
StatusPUBLIC

Content hashes

Canonical text463b11b9787cad12f681cc4e6c44e7c7dd3b4b8f2adc57be19e04455e5eb2d5a
Markdownfb114bec37ba27300b50862b475345a05db400f0a4fd6b037ea581db514e131d
PDF
Publication page0fec5916bc91ca9ac2943a4dd7840b4283761568e2cc81273a9db4f2a6bba139
Manifest4d5eb3cea9d895a2e2b79d4269a1f75e0923dadf50807959c80d9f550afe5198

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
Signaturei9ivgfVdoST8dKUy4Q/Xb+VUP8kTv04He18/y1kY0UX9NiIRBo+OprjxuF/EmvvTmavAJ/zYxZBkeX4i29yOAg==
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

2026-09-17T09:50:42.340106ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087394
observed 0fec5916bc91ca9ac2943a4dd7840b42...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:42.322842ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087394/manifest.json
observed 4d5eb3cea9d895a2e2b79d4269a1f75e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:42.305325ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087394/publication.md
observed fb114bec37ba27300b50862b475345a0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:42.286793ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087394/publication.txt
observed 463b11b9787cad12f681cc4e6c44e7c7...
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.