OpenTechnical

OT-2026-000006430

Publication integrity record

Porous face vacuum gripper, common isolation valve, three outlet manifold, plant vacuum fed, closed cell

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-2026-000006430) never changes.

Identity and time

Publication numberOT-2026-000006430 · never reused
Internal UUID01a0a95a-f769-7c05-a35d-e7a26721010d · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:35:06.220231Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006430
StatusPUBLIC

Content hashes

Canonical text9f6cafd597876beb5b2f3b1a4f0a7f7e8bc52c0e76a44fde9b033f2cce5deb68
Markdownf569aa5a3d8f40855e6db43080c0572d90738af2ba764d5fe9726a7b884c6474
PDF
Publication page7eecf68b97191b54709bbcbff22b224fdba2bf5c223424d4270805e0303eb798
Manifestfeb133e732a378c06271edf63737a6aecd52eb23851a08f14e7a731ec900521e

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
SignatureyO/5AZ0lELuzmx/Wa3mu7PD4mM8kZnX3/d6aHxboSXPdQEWr1Cjzrh5shN/5vjK9EQZy2Hqpqd5eZBXO9TPaCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:40:18.481431ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006430
observed 7eecf68b97191b54709bbcbff22b224f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:18.468567ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006430/manifest.json
observed feb133e732a378c06271edf63737a6ae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:18.456174ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006430/publication.md
observed f569aa5a3d8f40855e6db43080c0572d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:18.443875ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006430/publication.txt
observed 9f6cafd597876beb5b2f3b1a4f0a7f7e...
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.