OpenTechnical

OT-2026-000090581

Publication integrity record

Two cup vacuum gripper, two zone face, per zone isolation, two stage ejector, 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-2026-000090581) never changes.

Identity and time

Publication numberOT-2026-000090581 · never reused
Internal UUID01a0ae9c-7f2f-798b-8158-1533c65353eb · 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-2026-000090581
StatusPUBLIC

Content hashes

Canonical textf5ecaf8a86f9dce3bbaa1ff220190dbed3efc875bff02dc1a2f088604cbea152
Markdown1b2737178ad65f5d9b5643e817bf6d52377834c6f59d542bbc6fac419f2a1060
PDF
Publication page6c3ae563aa8fc3712fe7a9d1bc7b21ce509517397320d4f20f86beda287f93a3
Manifestb87476917dfbe370db18b3b286d754766a61501f79006295b0a56301001b0a4b

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
SignatureHXYh3encGYfLWqk6vR1LL8aC0CjlSFdSDSoMZi9VS23dJMm+I+KEmp9hOXnXPOo5dLXOzWNZEH7VlOz8egdSDw==
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

2026-09-17T09:44:45.657966ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090581
observed 6c3ae563aa8fc3712fe7a9d1bc7b21ce...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:45.640776ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090581/manifest.json
observed b87476917dfbe370db18b3b286d75476...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:45.621379ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090581/publication.md
observed 1b2737178ad65f5d9b5643e817bf6d52...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:45.601333ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090581/publication.txt
observed f5ecaf8a86f9dce3bbaa1ff220190dbe...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent