OpenTechnical

OT-2026-000077890

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, common isolation valve, three stage ejector, vented after 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-2026-000077890) never changes.

Identity and time

Publication numberOT-2026-000077890 · never reused
Internal UUID01a0ae95-2ed1-78da-a011-4cf7b7b19ed9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:47.703064Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077890
StatusPUBLIC

Content hashes

Canonical text35550c8462f819cfa85f3231c0892d28802902f3203f004e3d801fdade3e375b
Markdowndeaf4aeeb7d054eb8759ec4195686a5af0a73e008808994b21e187079f2f63bc
PDF
Publication page2b019f3c9c8d358bbe2692dded2baf8bc80fc67553fca614a7f68d72b5bbd074
Manifestc4c19e821f3a23720de50d716ff82870363fe9a652463040c404b3ae839e5953

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
SignatureXRBsNVzNeDk/Gu8BlHSJZLNPspDAQCZ+3jKNMyIUBvTGTl8QWJ/Wu0oCUcA4B1acm9z+glkk6wp7UO2nOmL0Cg==
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

2026-09-17T10:06:58.615274ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077890
observed 2b019f3c9c8d358bbe2692dded2baf8b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:58.597727ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077890/manifest.json
observed c4c19e821f3a23720de50d716ff82870...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:58.579540ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077890/publication.md
observed deaf4aeeb7d054eb8759ec4195686a5a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:58.562477ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077890/publication.txt
observed 35550c8462f819cfa85f3231c0892d28...
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.