OpenTechnical

OT-2026-000026431

Publication integrity record

Four cup vacuum gripper, four zone face, six outlet manifold, three stage ejector, pulsed blow-off before set-down, on a tool changer

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-2026-000026431) never changes.

Identity and time

Publication numberOT-2026-000026431 · never reused
Internal UUID01a0ae71-f4a7-744c-9642-c24e59dfb071 · 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-2026-000026431
StatusPUBLIC

Content hashes

Canonical text525bdeaf18d592804b74d1762133a8ea687fedd1a9bef81413bd39f015cc77b4
Markdown40982f7744b1711b7d9082478dbf03832991fd6625356a80b40706072dcb3c71
PDF
Publication page5a75817e16c37a9e3b66142d4d94c1d8704cba7f9ef9cd2500dff9c81493e047
Manifesteb768535e974fc5ab56e73fd8ab477af1c49851d2396e5645b019ee5473613bf

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
SignatureFkbQRpnZpeS1CLgRNpmnHtodwJN+zY0JiZSFKkgZ9XsskrlI8NJq7lsppCwgf7V0oBUW/HEFpND8Uu5NzLkfBA==
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

2026-09-17T11:44:25.599063ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026431
observed 5a75817e16c37a9e3b66142d4d94c1d8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:25.582875ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026431/manifest.json
observed eb768535e974fc5ab56e73fd8ab477af...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:25.567175ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026431/publication.md
observed 40982f7744b1711b7d9082478dbf0383...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:25.550983ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026431/publication.txt
observed 525bdeaf18d592804b74d1762133a8ea...
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.