OpenTechnical

OT-2026-000029193

Publication integrity record

Four cup vacuum gripper, four outlet manifold, two stage ejector, supply line pressure sensor, sustained blow-off 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-2026-000029193) never changes.

Identity and time

Publication numberOT-2026-000029193 · never reused
Internal UUID01a0ae73-2aa0-7ac1-b141-92d6623fbe18 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029193
StatusPUBLIC

Content hashes

Canonical textc934b99d3c71fe341aa81bb4b0cba4d6b438d72394193632aa4ce6a5d8a4044b
Markdown2bdca514870aa9d988ca1187f6115a68e81e92968084b0ed250773eebdd86c53
PDF
Publication page4417b60dba7eea0f5811336bc1e78a03e12f75ea35c0e89b8735778fc7250295
Manifest2fc155a67ab3310a436e6dbb94f8bce0eb9fe6325cbd369fbd9e6781a5dfd8e3

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
SignaturehpqfcuIbSk8RH89RrGqyxbKhTbhe5Ymrdzn5Q0cHuPMuMSvB3LkgE7qhaH2kacb/zoz7auIDG2eXJg7enqOlAA==
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

2026-09-17T11:39:48.196177ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029193
observed 4417b60dba7eea0f5811336bc1e78a03...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:48.176950ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029193/manifest.json
observed 2fc155a67ab3310a436e6dbb94f8bce0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:48.155940ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029193/publication.md
observed 2bdca514870aa9d988ca1187f6115a68...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:48.126467ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029193/publication.txt
observed c934b99d3c71fe341aa81bb4b0cba4d6...
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.