OpenTechnical

OT-2026-000102550

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, two stage ejector, pulsed blow-off 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-2026-000102550) never changes.

Identity and time

Publication numberOT-2026-000102550 · never reused
Internal UUID01a0aea4-858a-77f0-933c-1a0bbe1a43ed · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:13:32.827355Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000102550
StatusPUBLIC

Content hashes

Canonical textbf647239e9333a8d90c63ebcff1c88b964d427ef8ee0f083581af398f2806aa6
Markdown1bbf4574e39b70e0328047c155ffca9ee8113719f47c749eae8e66367becbbb4
PDF
Publication page01d9d668802a2aaea1337c3319f63e3173ed67d43ef584b8751dcbabdaa63a00
Manifest01cb8fed50737c2653e254f275b85b5b19784d479e5c0935ff114ca55f32a473

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
SignaturehEHzT0PtvavH8In1aVTMfQgH8xrNqm14i1xsVs7G9mqaSNc48k7f05lQaMSKYf7x9S2bu9TB041/FhjGG+kuCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:24:01.693858ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102550
observed 01d9d668802a2aaea1337c3319f63e31...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:24:01.675363ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102550/manifest.json
observed 01cb8fed50737c2653e254f275b85b5b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:24:01.655678ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102550/publication.md
observed 1bbf4574e39b70e0328047c155ffca9e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:24:01.635858ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102550/publication.txt
observed bf647239e9333a8d90c63ebcff1c88b9...
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.