OpenTechnical

OT-2026-000031750

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, common isolation valve, plant vacuum 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-2026-000031750) never changes.

Identity and time

Publication numberOT-2026-000031750 · never reused
Internal UUID01a0ae74-bad0-7c7a-a6c9-ecf9846f8cc4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:20.739935Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031750
StatusPUBLIC

Content hashes

Canonical text30d1304c48aa139e7aa9ac9994d118b6d3dd8e7ee63e12311ec5cd3c691cf732
Markdown1783af771cf37cd89d7442905facee2693d182c18a746e3e80d46a87b797da1f
PDF
Publication page5008ac5afa7030ade43bf101fb53e49397c5213d5d38558e29fa538b76c9515c
Manifestee75db358960c42257389d3336e0f84776ef871d477f12706f4fa303c51d1030

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
SignatureXJn4Jyu/WTjYkg/IZeuhU/t+W8k4Qcn+RCxAhRT2Vndu0HyYvUUmh3ODtdZgjbUb+sLV5V7oBkDQOtPQ7wLXCA==
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

2026-09-17T11:34:52.158156ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031750
observed 5008ac5afa7030ade43bf101fb53e493...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:52.142391ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031750/manifest.json
observed ee75db358960c42257389d3336e0f847...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:52.124418ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031750/publication.md
observed 1783af771cf37cd89d7442905facee26...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:52.105326ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031750/publication.txt
observed 30d1304c48aa139e7aa9ac9994d118b6...
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.