OpenTechnical

OT-2026-000077259

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, 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-2026-000077259) never changes.

Identity and time

Publication numberOT-2026-000077259 · never reused
Internal UUID01a0ae94-f508-7d28-bf03-3bf4b4ae44a3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077259
StatusPUBLIC

Content hashes

Canonical text091fac9c1c15305a048923f50ff1fff5e675a56bc62a8c60438b34db1beefbd9
Markdownb4ce0a47a94b62adfec6af2388ee258c17b2b3e35568421b9689da62d92c9848
PDF
Publication paged543b8b239fe739a78062870904665e14b8b1a333330fedbb3f36024c0a3a2de
Manifest1d9528738c04486c9d9bea9856f3d0c0a321d005d3ced3283c323d092e4481ba

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
Signaturee2fEOtmqrMjk2JdyBjaS69ZZIYW1MtJ/Pu+jyDcIPLMMDG/4G9VCytz0oAvo9iOZOXWU/mk1N4LFV8lcTxUZAA==
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

2026-09-17T10:08:52.970179ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077259
observed d543b8b239fe739a78062870904665e1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:52.950217ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077259/manifest.json
observed 1d9528738c04486c9d9bea9856f3d0c0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:52.930825ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077259/publication.md
observed b4ce0a47a94b62adfec6af2388ee258c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:52.908354ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077259/publication.txt
observed 091fac9c1c15305a048923f50ff1fff5...
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.