OpenTechnical

OT-2026-000016421

Publication integrity record

Two cup vacuum gripper, two outlet manifold, pump fed, manifold 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-2026-000016421) never changes.

Identity and time

Publication numberOT-2026-000016421 · never reused
Internal UUID01a0ae6e-2d13-78b6-a2f9-24260392b7d2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:11.237946Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000016421
StatusPUBLIC

Content hashes

Canonical text3667cff6817504e2eac7af3f5e68b5e8f2ae04f82b0a98f955fa8dd1a062d64e
Markdown4eb9fc33861cde4f4ccff2f0d4c6a802c534dbfea348108a0d4f80f2777be479
PDF
Publication page1ce57f1863376d303d90fd95520798baf3fcc2f0112e25b0d3a98ea6b4b2f832
Manifestd611a466de805eae80b042b5628140cc18895f064f6f4b105867fe1f0bc63c78

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
SignatureCyptajzm4fu4lY6AAgJ5bbEXFKbD7wcLdmYw3tR89aCVpxs+DqOPRQFZTf1nWhIgbKpo8ibBnoiRCWk8OP/AAA==
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

2026-09-17T12:04:30.788082ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000016421
observed 1ce57f1863376d303d90fd95520798ba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:04:30.769619ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000016421/manifest.json
observed d611a466de805eae80b042b5628140cc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:04:30.749971ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000016421/publication.md
observed 4eb9fc33861cde4f4ccff2f0d4c6a802...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:04:30.730918ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000016421/publication.txt
observed 3667cff6817504e2eac7af3f5e68b5e8...
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.