OpenTechnical

OT-2026-000072298

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, 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-2026-000072298) never changes.

Identity and time

Publication numberOT-2026-000072298 · never reused
Internal UUID01a0ae92-47c3-7ef6-8fa7-96805c799602 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:37.365346Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072298
StatusPUBLIC

Content hashes

Canonical text4f9fa228036428915990f27923145005a47668765db0231e674116d788ac3a47
Markdowne051df158f83873cff8850cd91dee8ddab66626703cfcafab2a5566182c50f11
PDF
Publication pagecb3b8927532b24a9fda36da59aeae8b21c3dac3aaae09b689c5d60ed20e1afaf
Manifestfb3bbb3671d093f92061c2539b5758568afe5bf379f2523dd0e938f778821cbf

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
SignatureAWeZF1yy2J6rE3uw0WNOtzefFiXdz9ddUYc/6izf/gmR4Wtl3YBD7KVG58MIOPbeMpiQhtSRroKc7naOeRMoAg==
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

2026-09-17T10:23:31.028102ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072298
observed cb3b8927532b24a9fda36da59aeae8b2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:31.011016ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072298/manifest.json
observed fb3bbb3671d093f92061c2539b575856...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:30.992949ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072298/publication.md
observed e051df158f83873cff8850cd91dee8dd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:30.975876ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072298/publication.txt
observed 4f9fa228036428915990f27923145005...
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.