OpenTechnical

OT-2026-000036215

Publication integrity record

Foam pad vacuum gripper, four zone face, per zone isolation, 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-2026-000036215) never changes.

Identity and time

Publication numberOT-2026-000036215 · never reused
Internal UUID01a0ae77-01cf-768a-a3b4-5b9e40f3e99c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:23:50.134839Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000036215
StatusPUBLIC

Content hashes

Canonical text4d82dce0736b6df7dcc291e8cf8002bf18ff77229fdcc37e12f96cdf52b282e8
Markdown1aa7df50559535880ca762fa87e174b9f4c35f993c0ee4510f2eda28c54373f9
PDF
Publication page234d80e132dff5b8eb4e697ae6b8962a7cebdf048e0f2c1ac8616bc86916f205
Manifest4cabb13d4aa65f6ff697b2975b287d6acad26dca68c48d0abc9394f270c402f5

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
Signaturetq8P8oBMHJ44s+9kKbdt2ysrjTRwPHSQWADvPSzvoc0cf8pXxXFDNMf/SesLkCscQDN6aRxRQc0/5+3j9IhgBw==
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

2026-09-17T11:26:27.484304ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000036215
observed 234d80e132dff5b8eb4e697ae6b8962a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:26:27.466683ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000036215/manifest.json
observed 4cabb13d4aa65f6ff697b2975b287d6a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:26:27.449135ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000036215/publication.md
observed 1aa7df50559535880ca762fa87e174b9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:26:27.430829ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000036215/publication.txt
observed 4d82dce0736b6df7dcc291e8cf8002bf...
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.