OpenTechnical

OT-2026-000078530

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, vented after 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-2026-000078530) never changes.

Identity and time

Publication numberOT-2026-000078530 · never reused
Internal UUID01a0ae95-7c29-79ae-a716-1088caa9ca51 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:07.483031Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078530
StatusPUBLIC

Content hashes

Canonical text0e5b821835309a2caea86226bf909af12aeb6afad01a66f5661a2f4b091f1b2f
Markdown1a26cd9263cb96c24c579d5f248c217e0d726659f3328021cdc98541fbbfa353
PDF
Publication page7fb8e4ac0cce85254b9bee46bc091963caeb6c319de75187751cd01588222927
Manifest041e9bfc7921184826e5b47b208b837834e88385bdec824cbcdb8d2d5a7eddb6

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
SignaturecpxE66DS5jf2BqKHOywmBN/vA1zWFZwYlXIH3IH2xTX7bOZZ4AKC0/AagZtshe5WYMvU2LRsKKm4eXMODNAoDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:06:33.003041ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078530
observed 7fb8e4ac0cce85254b9bee46bc091963...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:32.986462ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078530/manifest.json
observed 041e9bfc7921184826e5b47b208b8378...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:32.969240ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078530/publication.md
observed 1a26cd9263cb96c24c579d5f248c217e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:32.951899ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078530/publication.txt
observed 0e5b821835309a2caea86226bf909af1...
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.