OpenTechnical

OT-2026-000015081

Publication integrity record

Single cup vacuum gripper, single stage ejector, 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-2026-000015081) never changes.

Identity and time

Publication numberOT-2026-000015081 · never reused
Internal UUID01a0ae6d-d096-7bea-ba12-f6100b5575d4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:47.560717Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015081
StatusPUBLIC

Content hashes

Canonical text7c50d1bd0d94049dd8fc702637c665c6401172a6758fc0c5138f816908286a31
Markdownd2e3a9115d408a9ac708ae11af05c0d7509aa641b6e48be703f9b29d221e2f42
PDF
Publication page184878a2cc6a4da066106148ef969a52093ac51cc75a0beeccdda2c99ce49beb
Manifest029f45aecc4582a6ba39163fed7eb5af96bf7f893a6a7f7cf622d3528bf7e32a

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
Signature0N+sg4VsHK0N4Ri9N5BimoX/VPHdKlv4bnDBCA89drzO3OqE9L+4Tn0eSsKe/Lw7twtiki14wUJM3ic8umMFBw==
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

2026-09-17T12:07:07.941783ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015081
observed 184878a2cc6a4da066106148ef969a52...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:07:07.920643ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015081/manifest.json
observed 029f45aecc4582a6ba39163fed7eb5af...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:07:07.902499ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015081/publication.md
observed d2e3a9115d408a9ac708ae11af05c0d7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:07:07.883694ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015081/publication.txt
observed 7c50d1bd0d94049dd8fc702637c665c6...
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.