OpenTechnical

OT-2026-000091507

Publication integrity record

Two cup vacuum gripper, two zone face, four outlet manifold, single stage ejector, pressure sensor per zone, sustained blow-off before 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-2026-000091507) never changes.

Identity and time

Publication numberOT-2026-000091507 · never reused
Internal UUID01a0ae9c-f16d-70c3-81f6-8214efd328d5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091507
StatusPUBLIC

Content hashes

Canonical text5c3dd866c2f981d34f47adbb5dba9d1b0f3f4c056fafaf0b5ad33b844eeb7cfb
Markdownbb25755e3c90f0c8d53f092d83d93f17c684a87c55f87c63e2f9e35017b11369
PDF
Publication page85c2ba277ae322196a6f031ec489927a4426155129fe5810ef84f2507bc1f311
Manifest6a299f6783130db5c1d700ff842248d101c24c5292500b1055c305be2360ebb5

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
SignatureSB0tErVFmZ+vUfY0Gsvp/LRU3wyLne2deLnjZCzCKNBaIlSjLSpBX4bPYaZ1AjDW8p1AmB1w9QxApeelAExoCw==
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

2026-09-17T09:43:46.127131ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091507
observed 85c2ba277ae322196a6f031ec489927a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:46.109597ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091507/manifest.json
observed 6a299f6783130db5c1d700ff842248d1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:46.092864ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091507/publication.md
observed bb25755e3c90f0c8d53f092d83d93f17...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:46.076442ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091507/publication.txt
observed 5c3dd866c2f981d34f47adbb5dba9d1b...
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.