OpenTechnical

OT-2026-000021695

Publication integrity record

Two cup vacuum gripper, two zone face, common isolation valve, three 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-2026-000021695) never changes.

Identity and time

Publication numberOT-2026-000021695 · never reused
Internal UUID01a0ae6f-bb59-724f-a0d2-f580e99c5e7f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:53.201585Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021695
StatusPUBLIC

Content hashes

Canonical text6fdcd82cb9622f6016e0c586c3716eab507b59a6fd9bbfbed0b772ce17e455e2
Markdownc8973ecf9cc10f79f61358aafcc30361a79b9276e13675b6469cb0eee29acfbb
PDF
Publication page0784056995bc99fedc06af379221d60e3a73874b6943d03ab1534e66ceb8f211
Manifestd9078026bb82df2fe8cd5b8b66e6cffd546e0f3d698885be87d39d6a4f817c20

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
Signature35zM7vuPKUZxqPJbZthBIdkuRq9b8C+gqRIJt8xDlD6O0Xf3nVwd1HbY71gUQT2cXMuA6F6ybwApu/8CB/v3Cg==
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

2026-09-17T11:54:13.926132ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021695
observed 0784056995bc99fedc06af379221d60e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:13.907283ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021695/manifest.json
observed d9078026bb82df2fe8cd5b8b66e6cffd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:13.889361ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021695/publication.md
observed c8973ecf9cc10f79f61358aafcc30361...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:13.871738ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021695/publication.txt
observed 6fdcd82cb9622f6016e0c586c3716eab...
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.