OpenTechnical

OT-2026-000042049

Publication integrity record

Four cup vacuum gripper, four outlet manifold, two stage ejector, sustained 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-2026-000042049) never changes.

Identity and time

Publication numberOT-2026-000042049 · never reused
Internal UUID01a0ae7a-5d70-7b26-8f04-94ee17416a64 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042049
StatusPUBLIC

Content hashes

Canonical text2f48e7d6fd9f0ad04f355b219d564ca2227270ed46dbd4b013217a0f2f5e68c5
Markdown75441f3da3dd25bf5ddbf0dfa197db4379e509385e7dc9a74248d60e778f5795
PDF
Publication pageb77e764c21310b188115c87dad2cf2fd3d1725637bfc7e859dec9a0455711da5
Manifest79850dba35fc0ec862ea1068ef1cff5a03911ec544ad59a977e3f68f7021eb7d

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
SignatureUepbNlZVq5vL+8c0lG+bAXvOZfLkk8c7QXSKhL1fw4fnetLnRRwkHc5XOEboYll/2fXtGv+x373BWIY06woQCA==
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

2026-09-17T11:15:33.850519ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042049
observed b77e764c21310b188115c87dad2cf2fd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:33.830736ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042049/manifest.json
observed 79850dba35fc0ec862ea1068ef1cff5a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:33.809793ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042049/publication.md
observed 75441f3da3dd25bf5ddbf0dfa197db43...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:33.790193ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042049/publication.txt
observed 2f48e7d6fd9f0ad04f355b219d564ca2...
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.