OpenTechnical

OT-2026-000087863

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, pump fed, supply line pressure sensor, 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-2026-000087863) never changes.

Identity and time

Publication numberOT-2026-000087863 · never reused
Internal UUID01a0ae9b-1aa5-7948-b828-264c58a5fa1d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:03:15.638297Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087863
StatusPUBLIC

Content hashes

Canonical textc3fd276f8ad1e240ccc2778d2c53195d200d47a59f9572d49c8b3fb000025e80
Markdown2f46fbc7d13f56161e3e0eaadb700afdd717958fc4d98358b42c5db464c9d1e1
PDF
Publication page5dff98846630e8c3b2e26966f22809dc5befd42b6572b861d9f4afffaeb5d1d0
Manifest145790539b9445a34a9216819cd9fd49e3891c1ff8d9b7b71d325c4588d8b3a8

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
SignaturecYUNhpCg/EQWlFTopRVIvvdWAmCMH1MT1OlvOcIc8FEiuWCyxq1GHARbwlSRQMniS79b7mN6dAaoFoOk4u1aBA==
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

2026-09-17T09:49:07.083581ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087863
observed 5dff98846630e8c3b2e26966f22809dc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:07.066145ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087863/manifest.json
observed 145790539b9445a34a9216819cd9fd49...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:07.047747ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087863/publication.md
observed 2f46fbc7d13f56161e3e0eaadb700afd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:07.029120ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087863/publication.txt
observed c3fd276f8ad1e240ccc2778d2c53195d...
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.