OpenTechnical

OT-2026-000018233

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, supply line 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-2026-000018233) never changes.

Identity and time

Publication numberOT-2026-000018233 · never reused
Internal UUID01a0ae6e-b488-7d78-865f-29ff578bd09b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:45.971508Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000018233
StatusPUBLIC

Content hashes

Canonical text11083fd50188234ce868f05fc1df6b66ddc8a1deded655fa4d29bdc5f56fa66a
Markdown09ddcdd11322dc7888337eace328258ec3f2996b88fcd9e8b4cbb1059afd4d8e
PDF
Publication page93bfcc018746f5e457e9abbc3c26dee1e8de5e16e60309938939f6b1c309710c
Manifestadf8d2b2735ce4354e65e816336199d75a375603bf91e29a693bc46d735158bf

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
SignatureCEplzM2HxXANv4pn3nx2HabV6btPadU2RkauajGp/FOt+tJmHPS/8+7AUom7Oj5X6aSvs1X7L8AlK/5DxvmBAQ==
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

2026-09-17T12:00:02.140947ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018233
observed 93bfcc018746f5e457e9abbc3c26dee1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:02.101827ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018233/manifest.json
observed adf8d2b2735ce4354e65e816336199d7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:01.741668ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018233/publication.md
observed 09ddcdd11322dc7888337eace328258e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:01.719536ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018233/publication.txt
observed 11083fd50188234ce868f05fc1df6b66...
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.