OpenTechnical

OT-2026-000028930

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, common isolation valve, three stage ejector, manifold 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-2026-000028930) never changes.

Identity and time

Publication numberOT-2026-000028930 · never reused
Internal UUID01a0ae73-2a9d-7f39-a70a-cb7a99585563 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028930
StatusPUBLIC

Content hashes

Canonical textd14e1df24cf4b7c838968f88c79111a84e7bb35f90658031edd0235872e7dbfa
Markdownbbdf4d6c9831e55fc938e87c8e0430c1e7ab29ee04491b129384e2bd2a3492a0
PDF
Publication page859f7e2efc4f51c964eaf71acef7ecccf0302d5e3f8294bbaf1119329e63e2bd
Manifest11ed26bd824731c6c8cfe098fc0a3d84c71982840ec553fcc500eb15785241c5

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
SignatureJSsV1ht7Bnhb5qbc5QqD5iq8YUuiT9kff24R1kGOC23H502BsbXfVcmITj5X2Ah61HoZiZiUZUskUbOAmx/2Bg==
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

2026-09-17T08:20:22.298580ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028930
observed 859f7e2efc4f51c964eaf71acef7eccc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:22.280372ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028930/manifest.json
observed 11ed26bd824731c6c8cfe098fc0a3d84...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:22.263039ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028930/publication.md
observed bbdf4d6c9831e55fc938e87c8e0430c1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:22.242455ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028930/publication.txt
observed d14e1df24cf4b7c838968f88c79111a8...
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.