OpenTechnical

OT-2026-000031628

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, single stage ejector, supply line pressure sensor, sustained blow-off before 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-2026-000031628) never changes.

Identity and time

Publication numberOT-2026-000031628 · never reused
Internal UUID01a0ae74-bacf-7cdc-8253-beb13ae9ded8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:20.739935Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031628
StatusPUBLIC

Content hashes

Canonical text68367da9a2650b41575a256d7184d51d6587dd089b0886b82b7b49088176b937
Markdowndbbb4f5cc76224b217bdcd0cee1b43140b227875411ada5cd15719cca47dd722
PDF
Publication page1db0412eadcc4240f3a721d28f7963497e643505eca65ccc58aad3d04955b460
Manifest7ba8308af0173aaee51018b137da984d59da03baba63a627b4823ac23ed3543b

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
Signature+xe3M7bxaaOoi3EKLYvHcEioGmvcs/nCewh1FwsT/iAhSPAEEg+2JMhVi7clg+jcoyGA9AvA6IBb7m0V7b9VBA==
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

2026-09-17T11:34:40.714859ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031628
observed 1db0412eadcc4240f3a721d28f796349...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:40.694890ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031628/manifest.json
observed 7ba8308af0173aaee51018b137da984d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:40.675734ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031628/publication.md
observed dbbb4f5cc76224b217bdcd0cee1b4314...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:40.659023ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031628/publication.txt
observed 68367da9a2650b41575a256d7184d51d...
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.