OpenTechnical

OT-2026-000003555

Publication integrity record

Porous face vacuum gripper, four outlet manifold, pump fed, pressure verified at each zone

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-2026-000003555) never changes.

Identity and time

Publication numberOT-2026-000003555 · never reused
Internal UUID01a0a90a-5e41-7a4a-b384-3117bb746384 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:07:04.132121Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003555
StatusPUBLIC

Content hashes

Canonical text064d5c757003795124cdc695510d5badb5b82b5532130de8fd0c6eee2a5fa7b4
Markdown07fc360fe6283f4236068363924e10036b3f0de90fe876cda57d4637c0b19122
PDF
Publication page76ccca1acea8d470cb30d61147dfc61cb2fed7bc1f93e04d4ee4ce2ba2f132ce
Manifesta160dd451779d1f81cf24d9b2902054e753ebf9f0534f38fcefbe95789085275

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
SignatureadK6Zdy3WM3/2dUu1BKIAGVjZ1GWwZDWythwQWWYFlqz4jKgYVn0DpC1RWQVnJgIfAiE+6FAPkAUu4yLFskeAg==
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

2026-09-16T08:50:31.887263ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003555
observed 76ccca1acea8d470cb30d61147dfc61c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:31.748187ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003555/manifest.json
observed a160dd451779d1f81cf24d9b2902054e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:31.733697ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003555/publication.md
observed 07fc360fe6283f4236068363924e1003...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:31.717883ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003555/publication.txt
observed 064d5c757003795124cdc695510d5bad...
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.