OpenTechnical

OT-2026-000019417

Publication integrity record

Single cup vacuum gripper, pump fed, supply line pressure sensor, 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-2026-000019417) never changes.

Identity and time

Publication numberOT-2026-000019417 · never reused
Internal UUID01a0ae6e-f393-7413-9ab2-5f716284d1e9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:02.050431Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019417
StatusPUBLIC

Content hashes

Canonical textd8859c82c0961c2bf0a47bca9da03f1b5469c46decaa5cea00812665cde5dd5d
Markdownfb7f13eab7e5be5b56dbb88cb9aabe2cf64cef0a1c89212aeef28d3c6cb79b9e
PDF
Publication page601847971387ec4c64dbb0e6e1729c8b9ecba61dfc28671b44c2f9ee351e61c5
Manifest1faac612604d664666fb0ab540514ade86546da29dd4c9e39e76c5a84b4262a9

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
Signaturer36QFeZ7Vyv69M3IXPOOGBl7ej1pMtLlqmxynOVf9Xs25pdxytY3LdxI/KhZLu2aMTRVVzts4r/+mQJVOgUGAA==
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

2026-09-17T11:58:48.493567ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019417
observed 601847971387ec4c64dbb0e6e1729c8b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:48.476100ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019417/manifest.json
observed 1faac612604d664666fb0ab540514ade...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:48.457723ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019417/publication.md
observed fb7f13eab7e5be5b56dbb88cb9aabe2c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:48.437515ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019417/publication.txt
observed d8859c82c0961c2bf0a47bca9da03f1b...
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.