OpenTechnical

OT-2026-000022243

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, three stage ejector, 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-2026-000022243) never changes.

Identity and time

Publication numberOT-2026-000022243 · never reused
Internal UUID01a0ae6f-f4fc-7a68-86c1-fe1507264d5e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:07.953226Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022243
StatusPUBLIC

Content hashes

Canonical text7e9a7ecbc7a33871ed6a2a0cfd1825114f0209092531c32148308d6773b2ba1f
Markdownceaa3c5b5b3b8344c84d015b6c2bfdbbfe925ff49cabbdb035dd40a8d945c2cc
PDF
Publication page6487b9c8d5f284086edbccf5a65228afc79dbdc39e58ac937d2454cae87bb9a6
Manifestd028b910d15973558a19d574dd20b2ae193c95fd866d997649924dbe5cfdcd82

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
SignaturewXjyMFT4Wt60CxVENEL2nye3lS1jNOQlAWWNyrr2pJ/z5n0R+4FlCCfV40kBtp+mVKXDtfI6SgWRHEgN4s5vDA==
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

2026-09-17T11:52:56.317991ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022243
observed 6487b9c8d5f284086edbccf5a65228af...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:56.300191ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022243/manifest.json
observed d028b910d15973558a19d574dd20b2ae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:56.282580ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022243/publication.md
observed ceaa3c5b5b3b8344c84d015b6c2bfdbb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:56.263917ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022243/publication.txt
observed 7e9a7ecbc7a33871ed6a2a0cfd182511...
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.