OpenTechnical

OT-2026-000079748

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, vented after 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-2026-000079748) never changes.

Identity and time

Publication numberOT-2026-000079748 · never reused
Internal UUID01a0ae96-4375-78b6-a0a8-767f2ddcd97a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:58.480954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000079748
StatusPUBLIC

Content hashes

Canonical text8cb56d31a3d68de2c4c775a6c3459952c543c5b8d2cbee7fa6582142eee21253
Markdown1740d741f85c9cf69afc29ebb039baf47f8854dca77530589ab672fa68ec7542
PDF
Publication pagef64224fc3d3d93c76d7c0ea55aa32896b9ef958a66bc7da0978d23e187d653db
Manifest73e7c25868e8762fc296fb33bf2c4c4aeda80d1952421000d73c3de6c96c8ae8

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
SignatureMValg6oP9sifnhB4pNNsB1QCB+IV6uRMVumSaYmNmZKXpiY+eqeAp3p4vPPFc7mUPi26mYHh1FVFpbiyENKlDg==
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

2026-09-17T10:03:36.886104ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079748
observed f64224fc3d3d93c76d7c0ea55aa32896...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:36.870014ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079748/manifest.json
observed 73e7c25868e8762fc296fb33bf2c4c4a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:36.850344ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079748/publication.md
observed 1740d741f85c9cf69afc29ebb039baf4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:36.833217ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079748/publication.txt
observed 8cb56d31a3d68de2c4c775a6c3459952...
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.