OpenTechnical

OT-2026-000013436

Publication integrity record

Single bellows cup vacuum gripper, single stage ejector, 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-2026-000013436) never changes.

Identity and time

Publication numberOT-2026-000013436 · never reused
Internal UUID01a0ae6d-6fca-7e65-8fa6-00b543fdbe87 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013436
StatusPUBLIC

Content hashes

Canonical text444122707b2d61a83821bcd79d6a6f3c766ad0334907c476890ea81699d9587c
Markdowndbff3d24b340771002b7c7723a3b76df25a230fb3dbf3ed218fe5f376fe69c20
PDF
Publication page90ec2f2aa5b7702345be314196a1287897a73e8b0ca8cf896a7dfaafb2b34623
Manifest4cbf06e9a808eb1b67b1ee36a63e955ea2155cc7bab9aa0f54f6a01f00caf135

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
Signature9bCJ5krs5396i1HcsaHHJPIbatlr5W06Ucecm254BtJVnHkydprfhKakqhxidfzOBS3BrStid+2Qc9ntSodLBw==
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

2026-09-17T12:09:55.415272ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013436
observed 90ec2f2aa5b7702345be314196a12878...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:55.396379ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013436/manifest.json
observed 4cbf06e9a808eb1b67b1ee36a63e955e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:55.379366ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013436/publication.md
observed dbff3d24b340771002b7c7723a3b76df...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:55.360499ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013436/publication.txt
observed 444122707b2d61a83821bcd79d6a6f3c...
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.