OpenTechnical

OT-2026-000042170

Publication integrity record

Foam pad vacuum gripper, common isolation valve, plant vacuum fed, sustained blow-off after 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-2026-000042170) never changes.

Identity and time

Publication numberOT-2026-000042170 · never reused
Internal UUID01a0ae7a-5d72-7d1e-b0f7-6edb09429872 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042170
StatusPUBLIC

Content hashes

Canonical text806a68e806a87bf35e0aca59d142558f07f174a5860ab06e42473aa7a37bfd58
Markdowne93a6fea82fbfefd04fee987062089f9b5635324f9da9765c5020520fdf19526
PDF
Publication page80a2495219904693dcd8f430cebf87c3c752c6d5854479ab7b01c61c434f8100
Manifest5caf9a2404abdce76f567ef93fd0407e5a8b4ca9c4106a5eacb2abf20155bed5

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
Signature6iioXQdvgKdppH/xbitLCmWQvXpb4wTghKenoHMkO+ZmF2/oLwZizgFxvEFAkjMDITjfbmN5C+RABrtfm3fLAQ==
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

2026-09-17T11:15:49.382975ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042170
observed 80a2495219904693dcd8f430cebf87c3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:49.361525ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042170/manifest.json
observed 5caf9a2404abdce76f567ef93fd0407e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:49.340834ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042170/publication.md
observed e93a6fea82fbfefd04fee987062089f9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:49.319707ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042170/publication.txt
observed 806a68e806a87bf35e0aca59d142558f...
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.