OpenTechnical

OT-2026-000012831

Publication integrity record

Two bellows cup vacuum gripper, two zone face, per zone isolation, single stage ejector, pulsed blow-off before set-down

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-2026-000012831) never changes.

Identity and time

Publication numberOT-2026-000012831 · never reused
Internal UUID01a0ae6d-5563-7740-83ff-49912bd6823b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:16.019734Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012831
StatusPUBLIC

Content hashes

Canonical textfd58f668f1d9cb0d5d5154d8fe2479c9a8dc58be3a496bdf336b1ac930cf88c6
Markdown160bc4799001686ff7a235630188668375928b24079af1f3d80dd5a6ab954e03
PDF
Publication pagefe3f9c5cac2074e1e07a4a39e8d64a46b6285b709e95ca17006d9c7c721cc99e
Manifest5e0fac30eb6c4bd4267dcb8072092b92ecba519f3544ebee22b9bd5300a5ca29

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
Signaturedwo3c/H+lzxpNLFLZ9tdZ4U3SYqbcrOzgBg47ys+++CtHDt+XN5lfkh7VaTyyCsaAlutsOBGnusC8ygrXYfbBw==
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

2026-09-17T12:10:35.176027ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012831
observed fe3f9c5cac2074e1e07a4a39e8d64a46...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:35.154588ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012831/manifest.json
observed 5e0fac30eb6c4bd4267dcb8072092b92...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:35.129740ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012831/publication.md
observed 160bc4799001686ff7a2356301886683...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:34.854225ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012831/publication.txt
observed fd58f668f1d9cb0d5d5154d8fe2479c9...
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.