OpenTechnical

OT-2026-000042142

Publication integrity record

Foam pad vacuum gripper, common isolation valve, three stage ejector, sustained blow-off after 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-2026-000042142) never changes.

Identity and time

Publication numberOT-2026-000042142 · never reused
Internal UUID01a0ae7a-5d71-71ae-8a67-a60404e23e1a · 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-2026-000042142
StatusPUBLIC

Content hashes

Canonical textb807e329756f5c09498745b6632dedafff529f9ad4a154fd432bafebc34cb956
Markdownb73639fe73ba29acae5023c99755fade49fc6ac09432fe86322c1bd8ecf75ee8
PDF
Publication page26b9c9bc6975329fa8f2386560e1c337edf1b12520fbb18347c8425eb03a2404
Manifest06e5ed30a4672402792b339bbeeb6f4c4269490f56df253132e16223d0c18c1e

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
SignatureR2aWA6k+MtpHC21wt41g92G7DhPTj41VctDInA/A8AjYyJIkre3thJenzHSlnYf24s3xBSPLbX/4mM8KhhoZCQ==
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

2026-09-17T11:15:41.583548ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042142
observed 26b9c9bc6975329fa8f2386560e1c337...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:41.561903ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042142/manifest.json
observed 06e5ed30a4672402792b339bbeeb6f4c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:41.540842ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042142/publication.md
observed b73639fe73ba29acae5023c99755fade...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:41.520153ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042142/publication.txt
observed b807e329756f5c09498745b6632dedaf...
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.