OpenTechnical

OT-2026-000068429

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, plant vacuum fed, pressure sensor per zone, pulsed blow-off 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-2026-000068429) never changes.

Identity and time

Publication numberOT-2026-000068429 · never reused
Internal UUID01a0ae90-2481-7cfa-9d79-e77514a0d9ed · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:51:17.262143Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000068429
StatusPUBLIC

Content hashes

Canonical textc4b4d6e260e5a9ae98ef6ca417abc3dd292755e7324af68c5edfa7d2862a3591
Markdownbe89f51a8ac6365d84b43f720fc22be1ab7dc28292560b8406ea53aa98d40893
PDF
Publication pagec17772ec4abf5af6fa24ed4a81e4ea24b3c9711ed325c132efc2d251024acafb
Manifestc94f3f12353663525727918c3487994efb9915606ca86181d8362325a4a85a62

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
SignaturepIUw7MNqlRimfxjdHGDeN3Q245iysS/9nV51q0ns/xjYRjURb7IqwtMR2EdRQAIUfXSSwhMKTpR9jSlzwBAmCg==
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

2026-09-17T10:29:34.251168ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068429
observed c17772ec4abf5af6fa24ed4a81e4ea24...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:34.233574ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068429/manifest.json
observed c94f3f12353663525727918c3487994e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:34.216489ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068429/publication.md
observed be89f51a8ac6365d84b43f720fc22be1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:34.200589ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068429/publication.txt
observed c4b4d6e260e5a9ae98ef6ca417abc3dd...
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.