OpenTechnical

OT-2026-000005603

Publication integrity record

Bellows cup vacuum gripper, common isolation valve, plant vacuum fed, pressure verified, contact triggered

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-2026-000005603) never changes.

Identity and time

Publication numberOT-2026-000005603 · never reused
Internal UUID01a0a93e-b4c5-7c0a-9f21-4a00cecd1358 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:04:14.151927Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005603
StatusPUBLIC

Content hashes

Canonical textf17eed2bf309b760844c7345e556cae09e7112f37bcbd028f49062871219c7f1
Markdown6a7f7be70d1452538c86318d26014742cecff1cd44209fce96d954f243612826
PDF
Publication pagee3147ba629960ad81340cfbb6048d0c5d7c29c800ae6ead437d3356ecdd691a5
Manifest56959490e74b09186de49ef3ea4079ccae844a0d958bb32dc12c04579703fa90

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
SignatureQh+N1l94wVrANcMUGOrtzEdiA0+wvTNJLQTcPyvg7DjNgK68uRGfH19A6JCgzeP63ejx/G6fNVBs2pJuTin8Bw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:07:02Z
batch OT-TS-2026-W38-011 · RFC 3161 token · inclusion proof
root 8f13af7374aef42943b7bbe6a279c57a...

Independent retrieval

2026-09-16T08:10:21.872995ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005603
observed e3147ba629960ad81340cfbb6048d0c5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:21.737333ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005603/manifest.json
observed 56959490e74b09186de49ef3ea4079cc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:21.720963ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005603/publication.md
observed 6a7f7be70d1452538c86318d26014742...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:21.703747ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005603/publication.txt
observed f17eed2bf309b760844c7345e556cae0...
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.