OpenTechnical

OT-2026-000031246

Publication integrity record

Foam pad vacuum gripper, common isolation valve, pump fed, pulsed blow-off after set-down

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-2026-000031246) never changes.

Identity and time

Publication numberOT-2026-000031246 · never reused
Internal UUID01a0ae74-87ab-72d9-920b-a22df3d8aea0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031246
StatusPUBLIC

Content hashes

Canonical textfdb2908a1e872ff0dfcf8b5027a47671e629f68ceb79402ce93cb16e69cdde78
Markdownfccc37f1c3df1619923f413b28f8b012ee96b93dc36a48e6487adc6999707190
PDF
Publication pageeab04f1df6dd7398ff02fc25ad13aad3cbaa1cc4d399308f9f217e8d00cb9bee
Manifestd4a66c2844bff47832747869ed3856f7bed0cd9eba2682a635543a8dfb30b7ba

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
Signature8b+QpHETERHv8/MZQmJKwdzIvpPvfTBlHS75i3NIHXBaFE/oBkwWukL7ZvVL6+kIglPI5CLVtEAGc9mcD1abBA==
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

2026-09-17T11:35:49.187288ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031246
observed eab04f1df6dd7398ff02fc25ad13aad3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:49.169795ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031246/manifest.json
observed d4a66c2844bff47832747869ed3856f7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:49.153425ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031246/publication.md
observed fccc37f1c3df1619923f413b28f8b012...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:49.136257ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031246/publication.txt
observed fdb2908a1e872ff0dfcf8b5027a47671...
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.