OpenTechnical

OT-2026-000075450

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, two stage ejector, manifold pressure sensor, vented 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-2026-000075450) never changes.

Identity and time

Publication numberOT-2026-000075450 · never reused
Internal UUID01a0ae93-f201-7142-bcb8-68dcc2cd57f7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:26.476108Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075450
StatusPUBLIC

Content hashes

Canonical text51dc1eeb9ed083bf7ef0468587af4134135112ca328cc033c716df51c6bf38be
Markdowne3a650e8595e556b47e790f9fb078425805b81e5f2c76bb5f7bf6c28dd6a89cc
PDF
Publication page2c2f7a92fd86deabc431f77d60c7efdb0816408d962d7a3f729ab32d1a730f8e
Manifest59228f371b9d997909a077a497b79a97d2c4cea4ddf97636f8878a68fb84c9c4

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
SignatureFnfj8Z58aH54tSkoF4dSeEGtffIdxHYSkmD0vFnxk4s2s2p7PjjqtOT2EPsn2iCMP4QiPojivsvk+qYMYTZtCQ==
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

2026-09-17T10:17:41.755626ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075450
observed 2c2f7a92fd86deabc431f77d60c7efdb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:17:41.738599ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075450/manifest.json
observed 59228f371b9d997909a077a497b79a97...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:17:41.719390ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075450/publication.md
observed e3a650e8595e556b47e790f9fb078425...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:17:41.700553ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075450/publication.txt
observed 51dc1eeb9ed083bf7ef0468587af4134...
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.