OpenTechnical

OT-2026-000049231

Publication integrity record

Two bellows cup vacuum gripper, two zone face, three outlet manifold, two stage ejector, 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-2026-000049231) never changes.

Identity and time

Publication numberOT-2026-000049231 · never reused
Internal UUID01a0ae81-134f-7123-8dc7-da5ea90746c4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:34:49.967260Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049231
StatusPUBLIC

Content hashes

Canonical text5484188d9676c3b0756a664a6fb9bc1ab28267eac6fd74ff0abb68293b86a61b
Markdown07655712a6667c23356ac330128ab093a49fa57a014af3e38d58b8798a9cf119
PDF
Publication page20b6f6838fe4bfb8e4c4b5fadcaa9179f0ed06787a4f507dcf104191d10e7fda
Manifest3f285c1a8b5a2e49b1ef5a800016d41450bcd79e015ee0aca579aa5d19008d33

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
SignaturePTSS5ffWA35z0/V5t+yfacILftMkz+xLs81R2RP9loovl/WP1aIwVPP/IOZQiml/Vn0rP7u7PkR53Zp5ewNOBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:04:03.357946ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049231
observed 20b6f6838fe4bfb8e4c4b5fadcaa9179...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:03.339244ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049231/manifest.json
observed 3f285c1a8b5a2e49b1ef5a800016d414...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:03.309262ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049231/publication.md
observed 07655712a6667c23356ac330128ab093...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:03.279521ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049231/publication.txt
observed 5484188d9676c3b0756a664a6fb9bc1a...
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.