OpenTechnical

OT-2026-000026689

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, three stage ejector, manifold pressure sensor, sustained blow-off before 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-2026-000026689) never changes.

Identity and time

Publication numberOT-2026-000026689 · never reused
Internal UUID01a0ae71-f4aa-723b-86ca-18c0afd8a348 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:18.960773Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000026689
StatusPUBLIC

Content hashes

Canonical text30977187121d927e8411f8072e9e7e090047bf954f378a02bf1a28d35b05d1bb
Markdownab3ece28cc42f4b07bb3378d21523594c15ee76dfae408bd537e090caa071366
PDF
Publication page675d636503fb142abaedfeb07c6ba5b54a359ef8b6407352e63bd8e1f1ac0c89
Manifest75822752b86ca014ecaec623ec924f6359659af18ac50e0dc1ecf565f01456ab

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
SignatureCuUtHG1Tvsov3zstp7Uwrium/EsQSuoWEdERFw8E451xBnMPaQryTH+VSPFuYMmT+qLQ59GJ/0cw6lnEiY7VAA==
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

2026-09-17T11:45:46.646027ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026689
observed 675d636503fb142abaedfeb07c6ba5b5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:45:46.627171ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026689/manifest.json
observed 75822752b86ca014ecaec623ec924f63...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:45:46.610217ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026689/publication.md
observed ab3ece28cc42f4b07bb3378d21523594...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:45:46.593945ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026689/publication.txt
observed 30977187121d927e8411f8072e9e7e09...
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.