OpenTechnical

OT-2026-000043645

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, two stage ejector, sustained blow-off 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-2026-000043645) never changes.

Identity and time

Publication numberOT-2026-000043645 · never reused
Internal UUID01a0ae7b-92d0-707a-9185-989fa043fbce · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:49.254972Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043645
StatusPUBLIC

Content hashes

Canonical text3995d623800c72361c1ccb6f5c4c0e59c50c852c0515ccfdb0bf88ea7de99f15
Markdown38805149c6e265c83f99ad86bc11319e2d413a51fd41c1ad66f8e5485ad88ea9
PDF
Publication page2bec9b3a0e1b5e8310692b813b45f0493168d42478da9d34ec531fa08161a78d
Manifestf7f54bf82d6430b8b2fa40f7fc4988f2cfed04c5f4d09a6124dff8ce6fb533e0

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
SignatureyOrInPbIR4j0hH6tb7y8ROsaVR6bFcAi8cOgaPiYc2umNolxx8pNoqlpH53sFrWO35VP/56GqOTIEt96caEqCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:13:07.510805ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043645
observed 2bec9b3a0e1b5e8310692b813b45f049...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:07.493816ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043645/manifest.json
observed f7f54bf82d6430b8b2fa40f7fc4988f2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:07.474504ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043645/publication.md
observed 38805149c6e265c83f99ad86bc11319e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:07.455785ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043645/publication.txt
observed 3995d623800c72361c1ccb6f5c4c0e59...
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.