OpenTechnical

OT-2026-000031650

Publication integrity record

Two pad foam vacuum gripper, two outlet manifold, common isolation valve, pump fed, pulsed blow-off 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-2026-000031650) never changes.

Identity and time

Publication numberOT-2026-000031650 · never reused
Internal UUID01a0ae74-bad0-7761-a3c3-ffb013adfbfb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:20.739935Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031650
StatusPUBLIC

Content hashes

Canonical textfcdbee2d47ccd6324628d170e57fb4a8b82c163379a46d764e16b077ab552575
Markdown240912fd262eac55653df4a8383e4b28de9cadf79452d9d46789f8f285209a75
PDF
Publication page61e719e94f03e3fcf14fc811b6566c25e5f91a9f332155ff1c4daf57c6aeeb01
Manifestfab4918327456b5bf38af14cdf8f4247d11065aba27ba919a5ab92de0550a646

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
SignaturekF2S9TSf76XpBViIa3fclZVQI+iEa+T+t4H41yzpAkhsLwTEaYSmqlz3YT0quVk49DhLXZfLuymAz2P7g/0ECw==
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

2026-09-17T11:34:42.433039ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031650
observed 61e719e94f03e3fcf14fc811b6566c25...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:42.414863ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031650/manifest.json
observed fab4918327456b5bf38af14cdf8f4247...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:42.397410ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031650/publication.md
observed 240912fd262eac55653df4a8383e4b28...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:42.379908ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031650/publication.txt
observed fcdbee2d47ccd6324628d170e57fb4a8...
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.