OpenTechnical

OT-2026-000022379

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, pump fed, 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-2026-000022379) never changes.

Identity and time

Publication numberOT-2026-000022379 · never reused
Internal UUID01a0ae6f-f4fd-778e-9944-717abb8e4404 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:07.953226Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022379
StatusPUBLIC

Content hashes

Canonical text195b5ff48c4e4e0d43ed6f264a072dc1ab39a15b40e2c526b21a74cceb81d5ce
Markdown953f63a87ffeba7db36e004df7020032413b52e208a1284ab054e01c9c53ad14
PDF
Publication page64e79d16252ac9f95f865a8f5977ceeac67745f9ffdc1e5f3ac1667337919b1f
Manifest5ef443577633c14328ee4fcffd6ca65d30adfcebad89e031c29925dbec14f0a4

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
SignaturekNXzQtT9VLfJ/qT+gKlxAXs/UfgQExQAFVFSD5Hr21LdejusdAH16evJt8ckdHsvMXaZ9OJqVez6T80yjn2SAg==
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

2026-09-17T11:53:45.261677ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022379
observed 64e79d16252ac9f95f865a8f5977ceea...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:45.242484ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022379/manifest.json
observed 5ef443577633c14328ee4fcffd6ca65d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:45.225549ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022379/publication.md
observed 953f63a87ffeba7db36e004df7020032...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:45.015527ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022379/publication.txt
observed 195b5ff48c4e4e0d43ed6f264a072dc1...
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.