OpenTechnical

OT-2026-000018645

Publication integrity record

Four cup vacuum gripper, four outlet manifold, three stage ejector, manifold pressure sensor, 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-2026-000018645) never changes.

Identity and time

Publication numberOT-2026-000018645 · never reused
Internal UUID01a0ae6e-d520-73c2-9ab6-94f3d0e4807e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:54.261386Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000018645
StatusPUBLIC

Content hashes

Canonical text5eda3a07d85dad558f481231fbff62eea9523f2cc9bc408d2dd96b487690a5ca
Markdown01ffffb07cfee0e4d1f10b7c664b1b17d8c67fb48e5d38835ffb209d310df38c
PDF
Publication page5e5ebc177c0ec1df899b03eb5511730763fa504bf368420963147bb13a8bd526
Manifestcb1a891dc0a2802a50bef7cc68486cedb1f013aac1296bc516fda1533ff8549f

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
SignaturehlEdljOx16Qbhpu4aONsANEBfB7cNqUmCEiOa0dqfnUQjD2noC1dhsz2A5jy401g1jZ47UR64XmUy/bbBswbDw==
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

2026-09-17T11:59:08.694659ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018645
observed 5e5ebc177c0ec1df899b03eb55117307...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:08.677541ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018645/manifest.json
observed cb1a891dc0a2802a50bef7cc68486ced...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:08.660645ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018645/publication.md
observed 01ffffb07cfee0e4d1f10b7c664b1b17...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:08.643579ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018645/publication.txt
observed 5eda3a07d85dad558f481231fbff62ee...
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.