OpenTechnical

OT-2026-000004947

Publication integrity record

Bellows cup vacuum gripper, two outlet manifold, three stage ejector, pressure verified, 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-2026-000004947) never changes.

Identity and time

Publication numberOT-2026-000004947 · never reused
Internal UUID01a0a928-c3f9-7594-90c3-b0dee1d4fec6 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:40:16.371415Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004947
StatusPUBLIC

Content hashes

Canonical texte4b9071497dff18d067d8f7840f53e65b96515a2d5738e472d55ca84cec9f5c4
Markdown94886f3ce008bd647631f88982cab361a622ca838eea3c2f9f1a8aee2fca823a
PDF
Publication pageaec470ea428e1e83680b1ebd235edb6706a042543500171ffd0e6b9a544258d9
Manifest974583cfce0f725bd263e6343f6536f0046d1ddd35b3e8d67c49a8d194eb4ceb

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
SignatureaekCkbIlJ0B8tcZlW5W//3FUK0VbIWoWVGi2paARD4ik9d5Yvq5CIaXkIRw3CUuUoUDnuoYgYsRFH7Y6Z6SIDg==
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

2026-09-16T07:50:32.164749ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004947
observed aec470ea428e1e83680b1ebd235edb67...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:32.153099ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004947/manifest.json
observed 974583cfce0f725bd263e6343f6536f0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:32.141480ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004947/publication.md
observed 94886f3ce008bd647631f88982cab361...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:32.129479ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004947/publication.txt
observed e4b9071497dff18d067d8f7840f53e65...
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.