OpenTechnical

OT-2026-000043683

Publication integrity record

Foam pad vacuum gripper, four zone face, four outlet manifold, pump fed, manifold pressure sensor, 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-2026-000043683) never changes.

Identity and time

Publication numberOT-2026-000043683 · never reused
Internal UUID01a0ae7b-92d0-7da4-91ec-4945bb3adbe0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:49.254972Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043683
StatusPUBLIC

Content hashes

Canonical text2699c861383aaec2bff426fa31aa1f55576e02a44b79d2c1c580c2b48a106dad
Markdowna71bbf97739d9ea73d92497ae6c54f314d37e65f834921674ad394e710fad220
PDF
Publication page5c7cf96ada16670fd6db2747d4398d823c28225e6c57198ba4ddfc6937912f62
Manifest8f1795a57d7e10751f679a54b65269ff7ce4174782d16dbf1383767e34f993d3

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
SignaturedAUcp82oBgQXUPQSAG8DxVxYYJEmqRJWcZ2aK5/COCtD8/8rp0wMBYyVxctrZoswDznac0IGSXU2RRAXNeCxDw==
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

2026-09-17T11:13:10.477798ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043683
observed 5c7cf96ada16670fd6db2747d4398d82...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:10.458958ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043683/manifest.json
observed 8f1795a57d7e10751f679a54b65269ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:10.440739ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043683/publication.md
observed a71bbf97739d9ea73d92497ae6c54f31...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:10.407673ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043683/publication.txt
observed 2699c861383aaec2bff426fa31aa1f55...
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.