OpenTechnical

OT-2026-000081906

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, supply line pressure sensor, vented after 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-2026-000081906) never changes.

Identity and time

Publication numberOT-2026-000081906 · never reused
Internal UUID01a0ae97-0f76-7dac-ae37-63518740b2e5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081906
StatusPUBLIC

Content hashes

Canonical textff7149d3a426405d25b1b75733ede1cc81b0f3009a76223daf4938deb8ee61c7
Markdown8e6a7d75e0f0f3c96b000d9035910c3c451a0500b0270aa477dfc40c3d511092
PDF
Publication page0c66c851b4ef99b3137958209fa4b16d448dc2b17f1a08383a02cbb5640e46be
Manifestd7d90124064b28f2c8bc7b700c4c3dd73bd70be95d5ae246ac2bfc216c7fe81f

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
SignaturehAZfg2YDvnfWyeMkER0JGg0+lTd/hCBjxK30/5tcjZgmGaSdZ+Lmsh8Ellf+tdFcX6q8ex7nqe+5nxHXESkTBw==
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

2026-09-17T10:01:01.928146ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081906
observed 0c66c851b4ef99b3137958209fa4b16d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:01.909971ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081906/manifest.json
observed d7d90124064b28f2c8bc7b700c4c3dd7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:01.892389ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081906/publication.md
observed 8e6a7d75e0f0f3c96b000d9035910c3c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:01.874793ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081906/publication.txt
observed ff7149d3a426405d25b1b75733ede1cc...
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.