OpenTechnical

OT-2026-000004931

Publication integrity record

Vacuum cup gripper, common isolation valve, four outlet manifold, ejector fed, vented 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-2026-000004931) never changes.

Identity and time

Publication numberOT-2026-000004931 · never reused
Internal UUID01a0a928-3458-7260-bba2-006362af26d1 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:39:39.483825Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004931
StatusPUBLIC

Content hashes

Canonical text59c785610a563c7292d762b269f543cfffbb66db5396446615ffc790db38ef51
Markdownc182d1ece650640a2eb7759a93d67c3abae04117b5153be0da954471c4e0a362
PDF
Publication page5281ef9f590a169af4f02eed9da95e8148e6a98112d70b00334660e1947b8ee8
Manifest9029b685aaaa75f92b3a3effe09109e08bc4913a753757bd4d4283e399f9dba5

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
SignatureFNdERCwhrIu04XRBYSitDXXSUmtql8i/XytdaUtGauOqKmldUtH4d5NHbOnKHBfcm2KBPDZQwxDwxD/erAZ4CQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:47:02Z
batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof
root e1b42dfa4cd0fb1e3e472afd2db961c2...

Independent retrieval

2026-09-16T07:40:03.457009ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004931
observed 5281ef9f590a169af4f02eed9da95e81...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:03.444214ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004931/manifest.json
observed 9029b685aaaa75f92b3a3effe09109e0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:03.433460ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004931/publication.md
observed c182d1ece650640a2eb7759a93d67c3a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:03.420593ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004931/publication.txt
observed 59c785610a563c7292d762b269f543cf...
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.