OpenTechnical

OT-2026-000017405

Publication integrity record

Single cup vacuum gripper, common isolation valve, 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-2026-000017405) never changes.

Identity and time

Publication numberOT-2026-000017405 · never reused
Internal UUID01a0ae6e-76c9-7dfa-9c85-de5ed6d01e39 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:30.105855Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000017405
StatusPUBLIC

Content hashes

Canonical text3101e4168a80c7834b046e61ffb12164943e5f7785f1f804ce6c49e16f6b4fbd
Markdown5d920bedfa6845d58d0116874e140fdf08ef468a3fe91af813f7298baf14111a
PDF
Publication page51e90d14c879e73ead35151c2b08d46b326eee333f700a1a29f184d27ed0633a
Manifest5015e49207fe72740b0405f1c5c4e2474c049fb9e6ad940e2a9fc5a91cd8c68f

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
SignatureWp6c1S7v3LpxomNIl9w6mvd3aOU/2f5TpGetGMslCmGjeodUQ0mIMRqUHzzigAvaDbKyquDbMfqBgZIBv5iQCA==
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

2026-09-17T12:02:31.961567ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017405
observed 51e90d14c879e73ead35151c2b08d46b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:31.944584ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017405/manifest.json
observed 5015e49207fe72740b0405f1c5c4e247...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:31.927955ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017405/publication.md
observed 5d920bedfa6845d58d0116874e140fdf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:31.911400ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017405/publication.txt
observed 3101e4168a80c7834b046e61ffb12164...
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.