OpenTechnical

OT-2026-000030673

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, manifold pressure sensor, sustained 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-2026-000030673) never changes.

Identity and time

Publication numberOT-2026-000030673 · never reused
Internal UUID01a0ae74-3fb3-70c1-9e17-8af51e037d3c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:49.275361Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000030673
StatusPUBLIC

Content hashes

Canonical textbb6530cedf1e4b8632bf505288a7552ecb354b71f5f6a1496b36c16ba60eb7e9
Markdown269a066069031665b39a322892377cd7930d25ec62c0d8fd9df707961332d71f
PDF
Publication page0d8ff6205caa899d4e0f9f6074cd66a885dbb727069fd3a3c9a1449ca2c540b3
Manifest8b6c8b697e7b3e80975af9d21c0a15b47fd2f78982cc74682fecaea933c23155

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
SignatureSJYOjt5p9/QEGe5D9mFzukTaRoxwT/zhZeGMWHWI/RPScMG74pFC2vr6FJl/17fr0XfyjXYZM9hEzl2lYjtSCg==
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

2026-09-17T11:36:33.776804ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030673
observed 0d8ff6205caa899d4e0f9f6074cd66a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:33.760183ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030673/manifest.json
observed 8b6c8b697e7b3e80975af9d21c0a15b4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:33.743050ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030673/publication.md
observed 269a066069031665b39a322892377cd7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:33.725413ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030673/publication.txt
observed bb6530cedf1e4b8632bf505288a7552e...
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.