OpenTechnical

OT-2026-000087804

Publication integrity record

Two bellows cup vacuum gripper, two zone face, per zone isolation, pump fed, supply line pressure sensor, sustained 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-2026-000087804) never changes.

Identity and time

Publication numberOT-2026-000087804 · never reused
Internal UUID01a0ae9b-1aa4-7c3d-a631-2df4422e1a7d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:03:15.638297Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087804
StatusPUBLIC

Content hashes

Canonical text28ae16d53c2ffe590424ab24775a87f74bcb7aaa6f3a02a1e37f483310b9fa8b
Markdownb930d89755ea7cb7c5361282165a9814c4cd99689a53c9c49d34d99ca87cc7de
PDF
Publication page05fe37bdf05bbd1b57d5901c450db415be60562a35c8be4cdfc4e3666a470ad7
Manifest6fc1942d758d01eb8397f666658cd842ceff9eeec6e4d69b6008af7cf6e57a68

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
SignatureTPlPqUEXH9sXusH4i/y4vbUEY56bJZVM4m+Wl7DROR4uxP9oMNqQYvu2kBIJM+9HLSYgfz03lnHKB8/VIZ6ZAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:49:00.369930ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087804
observed 05fe37bdf05bbd1b57d5901c450db415...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:00.323832ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087804/manifest.json
observed 6fc1942d758d01eb8397f666658cd842...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:00.304474ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087804/publication.md
observed b930d89755ea7cb7c5361282165a9814...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:00.257582ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087804/publication.txt
observed 28ae16d53c2ffe590424ab24775a87f7...
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.