OpenTechnical

OT-2026-000028325

Publication integrity record

Four cup vacuum gripper, four outlet manifold, two 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-2026-000028325) never changes.

Identity and time

Publication numberOT-2026-000028325 · never reused
Internal UUID01a0ae72-e2f5-7aa7-bec8-6defc2a9cd01 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028325
StatusPUBLIC

Content hashes

Canonical text74ae342c6edb3522c335cb7c02f2e59a3442fc267d3fda0094564b6916b7887a
Markdown80a524696752cfd3775620ea047d1a91b048f3295fc985c13ee174ffba59de4b
PDF
Publication page9313bf6a9a5cbf2b724dba13701f156feffaae944158df610d89e5606ffa578b
Manifest6ebcd08a876f4f52ae4a68f808cb9e4002cbce2b8593861f570d43dcd0fd1ccf

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
SignatureTbuvGid4zuttmKH05GeWCv5Tq/adAi3tvWU//h/c8ex1I24TJLIWefBvDkSBRACFaeDqs9FeJ4Ks/djbOOomCQ==
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

2026-09-17T11:40:19.571902ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028325
observed 9313bf6a9a5cbf2b724dba13701f156f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:19.552012ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028325/manifest.json
observed 6ebcd08a876f4f52ae4a68f808cb9e40...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:19.533701ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028325/publication.md
observed 80a524696752cfd3775620ea047d1a91...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:19.514518ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028325/publication.txt
observed 74ae342c6edb3522c335cb7c02f2e59a...
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.