OpenTechnical

OT-2026-000076051

Publication integrity record

Four cup vacuum gripper, four zone face, single 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-2026-000076051) never changes.

Identity and time

Publication numberOT-2026-000076051 · never reused
Internal UUID01a0ae94-6a6e-7a6f-a965-8966ffed812f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:57.307071Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000076051
StatusPUBLIC

Content hashes

Canonical text438789410e12bf8b01406cb0ea123cee66728bfeb4ade22693ff5784312fadee
Markdown5414b55ee8ab5b284e0ef9604da4a4d658b25975df2f6ff61d9ba447c685801a
PDF
Publication page8600040dfd30ec966da680170ca54335e1e567da3317d333178e64a66ece8e5c
Manifest0d32cdfb69808c1824a61f88630308630a141cc1b8d3106766005a8a901a062b

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
SignaturesdImeEhctMOBYTty/r/H2ryvzktSunwNCc6JFnQV2MYEeZxnMovACixKhUtVmldEF2YApZVA1YmdA/A2fvdjAg==
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

2026-09-17T10:10:33.230389ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076051
observed 8600040dfd30ec966da680170ca54335...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:33.212994ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076051/manifest.json
observed 0d32cdfb69808c1824a61f8863030863...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:33.193622ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076051/publication.md
observed 5414b55ee8ab5b284e0ef9604da4a4d6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:33.055589ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076051/publication.txt
observed 438789410e12bf8b01406cb0ea123cee...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent