OpenTechnical

OT-2026-000018521

Publication integrity record

Two cup vacuum gripper, two outlet manifold, two stage ejector, manifold pressure sensor, pulsed 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-2026-000018521) never changes.

Identity and time

Publication numberOT-2026-000018521 · never reused
Internal UUID01a0ae6e-b48a-7fa5-8993-0e8a7903e8db · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:45.971508Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000018521
StatusPUBLIC

Content hashes

Canonical texteb382525af0f81a80e6ce00750677af4e0856c19a1aeb5ec526708a196f20e78
Markdown031aba501ce6318dbb9f4c51ca8a3ef4c83188027403b42f3cd158b5a93c263c
PDF
Publication page07a4ba5f42b327bec8bcfb97b0b2eaee36503b830ae6ceef87786774c3e50873
Manifestd37adbd522a572f41271e3bed4b35ee0aa7288166ae6ffe59ecd4ec085296c97

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
Signature8PgNtiK/JGYCzGWACQF2ygjOlEko4Doj14uFRyPFVMrG7KUt0hqZKJNXSQ2X6srWb7wgJSzuERZ7VD/1ruhhDQ==
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

2026-09-17T12:01:17.641722ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018521
observed 07a4ba5f42b327bec8bcfb97b0b2eaee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:17.623492ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018521/manifest.json
observed d37adbd522a572f41271e3bed4b35ee0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:17.608135ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018521/publication.md
observed 031aba501ce6318dbb9f4c51ca8a3ef4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:17.588690ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018521/publication.txt
observed eb382525af0f81a80e6ce00750677af4...
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.