OpenTechnical

OT-2026-000029631

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, single stage ejector, pulsed 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-2026-000029631) never changes.

Identity and time

Publication numberOT-2026-000029631 · never reused
Internal UUID01a0ae73-5e22-74b8-9aeb-089f27c977ae · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:51.545382Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029631
StatusPUBLIC

Content hashes

Canonical text9ad3e40d5aa51045bbe38395ac4afb2f253d44e054f13183ddcea950374f5dff
Markdownd28182e87c2a411bdf14d95ea0d42e232a5706c23e5c3b79c560c6ae5cd57119
PDF
Publication page5cb793443de4c1f63bd0b8ede2d31ea10c4821a97172b2fa807c0c8db71ef983
Manifestfc32c5551a822a5d794190f18ee958efae4a0c7998ffef5ad584aee2c155f499

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
Signature1cqhPQ3w4szKwJu9rASVrZbFywLzHlfz0pBzQet4XTlzjRA69zy9/tEn1yOVQf87PaHZf4XTf63f3hWmTPDuDg==
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

2026-09-17T11:39:18.898674ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029631
observed 5cb793443de4c1f63bd0b8ede2d31ea1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:18.881181ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029631/manifest.json
observed fc32c5551a822a5d794190f18ee958ef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:18.846955ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029631/publication.md
observed d28182e87c2a411bdf14d95ea0d42e23...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:18.818402ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029631/publication.txt
observed 9ad3e40d5aa51045bbe38395ac4afb2f...
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.