OpenTechnical

OT-2026-000055249

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, manifold pressure sensor, vented 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-2026-000055249) never changes.

Identity and time

Publication numberOT-2026-000055249 · never reused
Internal UUID01a0ae86-a0ff-7685-b521-4e76ea6a2d89 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:40:53.783868Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000055249
StatusPUBLIC

Content hashes

Canonical text5ce57e3bfc0d5725a22abbad4b97ab24b74ed3afae060828b6e94e1659e27297
Markdown67c4e8261515399a733d523752cb40593c98def1676cc7cb699eb151cddf7f8b
PDF
Publication page3c428108118dae3680e9df571b77a1747b5148935216d1c7c9a79fd438fd9f1c
Manifest2ad6cd58122b7c776c6ae1b0fbfc8857ababf4f569f09d311cd22795aa2b2c53

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
Signaturek28xTU8X8UVMitgyNL6+UaHHH7jFphop5xSM0YEzl/jRffIb66BAhye6qEEr6LwmF+pL5GuD+RLkkznqSpyYAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:51:50.138998ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055249
observed 3c428108118dae3680e9df571b77a174...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:50.121561ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055249/manifest.json
observed 2ad6cd58122b7c776c6ae1b0fbfc8857...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:50.103492ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055249/publication.md
observed 67c4e8261515399a733d523752cb4059...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:50.085823ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055249/publication.txt
observed 5ce57e3bfc0d5725a22abbad4b97ab24...
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.