OpenTechnical

OT-2026-000047215

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, three stage ejector, pressure sensor per zone, pulsed blow-off before set-down

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-2026-000047215) never changes.

Identity and time

Publication numberOT-2026-000047215 · never reused
Internal UUID01a0ae7e-d0f9-732b-be21-82ceaf222b53 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:32:21.770727Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000047215
StatusPUBLIC

Content hashes

Canonical text2683fcb38a6b937c07d3daad2124c175234137f9291fbefea1bc08a1e2a45fc0
Markdowne669e8219777f63f3eea46a342173e0b5e6db497cf6bb304ae1bc92e637ba314
PDF
Publication page4e67de55797bc4df6d4d9e7d461eeb8687e3f37e86c6b27f056b9ffa60579e23
Manifestc76ead02e1ab31fbcd982716d2ad59acb44720223713b300fa71263819b100ff

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
SignatureZbE51G3WKDSWbtdBn6vBYWMj1jAgF/iucadPCszg3O1GK92AGv1pz5rLGTZwDru1nb7oI9qTpw4CZ6T0koWoAQ==
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

2026-09-17T11:08:03.054950ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047215
observed 4e67de55797bc4df6d4d9e7d461eeb86...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:08:03.035562ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047215/manifest.json
observed c76ead02e1ab31fbcd982716d2ad59ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:08:03.014501ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047215/publication.md
observed e669e8219777f63f3eea46a342173e0b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:08:02.994077ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047215/publication.txt
observed 2683fcb38a6b937c07d3daad2124c175...
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.