OpenTechnical

OT-2026-000075438

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, 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-2026-000075438) never changes.

Identity and time

Publication numberOT-2026-000075438 · never reused
Internal UUID01a0ae93-f201-7c2f-89d5-6a317c60fc6e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:26.476108Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075438
StatusPUBLIC

Content hashes

Canonical text79eed04918ce12cf54b363e7bda2b5cb0348da1d02e6a240b41ca05d98572cde
Markdown029373c52e9aa462f7df36e3c470e25e942fad03fac471f51671fd651908a89a
PDF
Publication pagea178f2531c7d1053b3de31680ca5e1eacb20598b144e0f58a6b62cfb1346868d
Manifestc9e9bedbb1f15a5185d2cd999b7632c36aba240ff8d33a926e6fc007920d8169

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
SignatureBLkaUqe1sPxrz6/Wyg3AkmMjXtANGW/t2gMMVxjv32ILAbu/pXB2SPQE+LCAMtVyr1f+Sanyou1cZjF5n4wyCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:17:38.037554ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075438
observed a178f2531c7d1053b3de31680ca5e1ea...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:17:38.020367ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075438/manifest.json
observed c9e9bedbb1f15a5185d2cd999b7632c3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:17:38.003387ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075438/publication.md
observed 029373c52e9aa462f7df36e3c470e25e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:17:37.983151ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075438/publication.txt
observed 79eed04918ce12cf54b363e7bda2b5cb...
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.