OpenTechnical

OT-2026-000029803

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, three stage ejector, 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-2026-000029803) never changes.

Identity and time

Publication numberOT-2026-000029803 · never reused
Internal UUID01a0ae73-5e24-7a38-8662-69c57cb31e52 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:51.545382Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029803
StatusPUBLIC

Content hashes

Canonical text3513cfcf794d095ad835b4b35b9a468125ca321a897071e31931dc8ee50a17ce
Markdownfe033bb648941a05e38adbbe34cb7541e3797f6fa2ace8898b431753b0f7009c
PDF
Publication page114d942e9e4f181fffd9bdf6f349a422a0f22a7bb1a16d13660b9b74cc06a37d
Manifest2647248fab9ca4cfef8bcb94e2a82f90c3122701b2c81ad94945cf7c84241490

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
SignatureBknrrTtU1bEWBqaQ5QQ/fRJBibvs9HlK1Mv0ZL5QZB+mVdYzUz8htwrvGdbBJpKiAyM1dTEi0OZiI+c6BhsABw==
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

2026-09-17T11:39:34.385015ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029803
observed 114d942e9e4f181fffd9bdf6f349a422...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:34.363867ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029803/manifest.json
observed 2647248fab9ca4cfef8bcb94e2a82f90...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:34.347141ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029803/publication.md
observed fe033bb648941a05e38adbbe34cb7541...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:34.329003ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029803/publication.txt
observed 3513cfcf794d095ad835b4b35b9a4681...
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.