OpenTechnical

OT-2026-000090647

Publication integrity record

Two cup vacuum gripper, two zone face, per zone isolation, pump fed, pressure sensor per zone, 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-2026-000090647) never changes.

Identity and time

Publication numberOT-2026-000090647 · never reused
Internal UUID01a0ae9c-7f30-707c-bfad-ddf9459b8a0c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090647
StatusPUBLIC

Content hashes

Canonical text36a918c713e3ebd8b7d6619fc226925e9c02afa4bb7005920e77bc9c32e0a25c
Markdown3c74e82cca3591a448d65fb1fe6b47d9aa4d4f6a7805e7b7dea56f39307df3f3
PDF
Publication page796d378cf4f832989179964988135108c3fc55fb211c40ef0d958450782e03b2
Manifest0f222749cf76a4ae14e2d2a574e244be56a30db70ef3b65c9dde01364c5c1fec

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
Signaturef5/15MJvURkIN/k0QoFfjQuZ3QIT4WBKbOczZqZLFfw1z0rPRAlQmmsVuRDO1XH09BRwWBgRTqPsJEyrENlZAw==
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

2026-09-17T09:44:50.124126ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090647
observed 796d378cf4f832989179964988135108...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:50.106143ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090647/manifest.json
observed 0f222749cf76a4ae14e2d2a574e244be...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:50.088426ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090647/publication.md
observed 3c74e82cca3591a448d65fb1fe6b47d9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:50.071084ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090647/publication.txt
observed 36a918c713e3ebd8b7d6619fc226925e...
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.