OpenTechnical

OT-2026-000027916

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, 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-2026-000027916) never changes.

Identity and time

Publication numberOT-2026-000027916 · never reused
Internal UUID01a0ae72-a4a5-7b8c-8482-1f3358919eb0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027916
StatusPUBLIC

Content hashes

Canonical textcfc9f39c2d96559b6a448a84ce4dd3b81589a5675482cef0345f052b18277966
Markdownf5cff5fe6560d0a18fa428dd13627d53d09626bf0d8c15104aecf16c65f15eb2
PDF
Publication page2e6c389998147ccd0e32f210d1caa32dec470658f5586e5bfab00fb5cb480893
Manifestbc28320c0cd697a9eab64936353daa152bafb7ba20816189043ffc3a1b03c021

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
SignatureDM+uZt+rkUX8fTxQo95WpKTHxiuDZvZx7BK+cZQZSk4eIhEmfk5KTJHGVP5kftW2wX1E6YDs6fJRUvfQU4I/CQ==
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

2026-09-17T11:42:05.480657ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027916
observed 2e6c389998147ccd0e32f210d1caa32d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:05.462772ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027916/manifest.json
observed bc28320c0cd697a9eab64936353daa15...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:05.446428ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027916/publication.md
observed f5cff5fe6560d0a18fa428dd13627d53...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:05.427762ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027916/publication.txt
observed cfc9f39c2d96559b6a448a84ce4dd3b8...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent