OpenTechnical

OT-2026-000004085

Publication integrity record

Porous face vacuum gripper, two zone face, three outlet manifold, plant vacuum fed

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-2026-000004085) never changes.

Identity and time

Publication numberOT-2026-000004085 · never reused
Internal UUID01a0a90e-7449-7771-b5da-5fa9d3131f82 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:11:31.916200Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004085
StatusPUBLIC

Content hashes

Canonical text607ca619257e207966f223a82283227f5903a11de837edabde7124d4f252e01b
Markdown45efb9095dfd540ad660ffe6f1fc33cc8d38d9d4791c659ea067e0ba14e4b306
PDF
Publication pageb66fcf23f30f6dc76e602cfe6050f3f1f25334ea01b8c9ac9522dce5115c09cf
Manifest0d264b549b8c198d1380c8114b7342d5b252d335ed6e90b6d04e373ab8bba9ac

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
SignatureIN+WqOy5LgfC3GJof5njPSW77BtV1baleqekbaneeDpTJRdEIzR0U59muYcPvICgGr3QbelIKrEJuHuzJV4UBA==
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

2026-09-16T07:30:33.870337ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004085
observed b66fcf23f30f6dc76e602cfe6050f3f1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:33.722480ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004085/manifest.json
observed 0d264b549b8c198d1380c8114b7342d5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:33.708768ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004085/publication.md
observed 45efb9095dfd540ad660ffe6f1fc33cc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:33.695929ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004085/publication.txt
observed 607ca619257e207966f223a82283227f...
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.