OpenTechnical

OT-2026-000004102

Publication integrity record

Vacuum cup gripper, two zone face, two stage ejector, pressure verified

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-2026-000004102) never changes.

Identity and time

Publication numberOT-2026-000004102 · never reused
Internal UUID01a0a90e-b987-7b20-af8b-a8732fb083bb · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:11:49.642812Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004102
StatusPUBLIC

Content hashes

Canonical texta0795b1d8124a9319672de9c25e8be62cce7b25e3db4d580f4fb3f69524c67fd
Markdowncb503d1cbda8288b2265aa1b48d16c448c3dafceba18ed6097d0a6d5822bf946
PDF
Publication page8c9fb862e33d94bc7ff442f40c789ce795866d542a9d8654b35b954f0121badc
Manifest1480e5829824e804c7748b2c822e290b8e157c679c38c5b6f3db0659e3d3df9e

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
SignatureoESaCDaFP/2fBfUslmz/etb7WN5bQxtRbqjbshtZeLcIAA1M8VzcJOMvOEmRyx7jyI1a9rAH7+ss2OaeMNPeDQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:27:02Z
batch OT-TS-2026-W38-009 · RFC 3161 token · inclusion proof
root aada101caea153fd76622afa3661a5b8...

Independent retrieval

2026-09-16T07:20:36.241553ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004102
observed 8c9fb862e33d94bc7ff442f40c789ce7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:36.229539ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004102/manifest.json
observed 1480e5829824e804c7748b2c822e290b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:36.217612ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004102/publication.md
observed cb503d1cbda8288b2265aa1b48d16c44...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:36.204053ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004102/publication.txt
observed a0795b1d8124a9319672de9c25e8be62...
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.