OpenTechnical

OT-2026-000090227

Publication integrity record

Four cup vacuum gripper, four zone face, six outlet manifold, pump fed, manifold pressure sensor, sustained blow-off before set-down

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-2026-000090227) never changes.

Identity and time

Publication numberOT-2026-000090227 · never reused
Internal UUID01a0ae9c-428f-714e-ba67-0d0c046c22cf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090227
StatusPUBLIC

Content hashes

Canonical textdaa704d19bb708940c7cf70b196ba50de79f629393b94a3b3f2ebcd9c4580dfc
Markdown9d9b3588501ed1a96ac82dd09c5d3649be4ef8cd445c898c5fe58dbd45328131
PDF
Publication page318fdf54bf7d0ff98d7397bcd11930118982404825955d605d78625d4736c5be
Manifest2cbdea9b030e9ee118ff6ce0c29bf289d36230cc088cf8cef8cda85c22448f20

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
Signature0gt0M+up2Zivr3tDM2lYhHejssGzc9o05lYxtYvQV3+NPZqE8roH7rxyQpm6mCFzJfjVCnBQukVRLMgiYBpOAQ==
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

2026-09-17T09:46:18.450178ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090227
observed 318fdf54bf7d0ff98d7397bcd1193011...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:18.433198ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090227/manifest.json
observed 2cbdea9b030e9ee118ff6ce0c29bf289...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:18.415396ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090227/publication.md
observed 9d9b3588501ed1a96ac82dd09c5d3649...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:18.399507ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090227/publication.txt
observed daa704d19bb708940c7cf70b196ba50d...
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.