OpenTechnical

OT-2026-000015396

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, two stage ejector, 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-2026-000015396) never changes.

Identity and time

Publication numberOT-2026-000015396 · never reused
Internal UUID01a0ae6d-ef49-7007-ba02-4f3d780012a4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:55.421510Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015396
StatusPUBLIC

Content hashes

Canonical textac8ace05d1fbaf7370ab2c7ee1156cb055c1af202f838a990ecbee8aee0d0930
Markdown097385cfb7a6762456d77c846a90f55a70f9abbde68b0d6362b09ed699bef374
PDF
Publication paged8e43683ddea27e1c8840a5825ab006c7c0ab38b0ce2e13b898998c18bf238ba
Manifest6b6a7323155a5cc4bf56e808ee911168a4612f431db1874f110dde26dea3fdb1

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
SignaturewU65U+ng4mPM0vQ8WjxKuRFrUkMvY1riZ0lI0HJqMCchoDPEBpUQgIgFrz4jgRYMrcM6PTeeOrhLjLTQsQwXAg==
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

2026-09-17T12:06:07.140625ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015396
observed d8e43683ddea27e1c8840a5825ab006c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:07.118239ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015396/manifest.json
observed 6b6a7323155a5cc4bf56e808ee911168...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:07.081482ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015396/publication.md
observed 097385cfb7a6762456d77c846a90f55a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:07.045727ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015396/publication.txt
observed ac8ace05d1fbaf7370ab2c7ee1156cb0...
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.