OpenTechnical

OT-2026-000004801

Publication integrity record

Vacuum cup gripper, common isolation valve, three outlet manifold, ejector fed, contact triggered

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-2026-000004801) never changes.

Identity and time

Publication numberOT-2026-000004801 · never reused
Internal UUID01a0a923-c71f-7ef4-a243-62b2883a5db0 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:34:49.378045Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004801
StatusPUBLIC

Content hashes

Canonical textac71a1e777131b6890d9b90ead1e6e8b372f70fea02cd1adb0e300567e38f200
Markdown15797fb14c48e79b6d14df6fd28431d7f4eb95402150cd4d8d1c4ccd817e0073
PDF
Publication page75e6c881d2a66f31d8ef180b328f723f5c4bd77727186a4fc31320dff88cf297
Manifestcc3d2b9e5088109c02b45a73334a029659d8d70c0c7139b02ad2f1faf5045476

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
SignatureA6n1/LoDO3e59gmQfo4bnnS9O4Jr83ekIRf7KoilNSSR7JAorPbW0XRziaStRoKkw/3N8iljSObvUniqqTC2Aw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:47:02Z
batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof
root e1b42dfa4cd0fb1e3e472afd2db961c2...

Independent retrieval

2026-09-16T07:40:17.629898ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004801
observed 75e6c881d2a66f31d8ef180b328f723f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:17.494682ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004801/manifest.json
observed cc3d2b9e5088109c02b45a73334a0296...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:17.481626ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004801/publication.md
observed 15797fb14c48e79b6d14df6fd28431d7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:17.468551ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004801/publication.txt
observed ac71a1e777131b6890d9b90ead1e6e8b...
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.