OpenTechnical

OT-2026-000029173

Publication integrity record

Four cup vacuum gripper, four outlet manifold, single 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-2026-000029173) never changes.

Identity and time

Publication numberOT-2026-000029173 · never reused
Internal UUID01a0ae73-2aa0-7eaa-af25-1fb4aa3ae99d · 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-2026-000029173
StatusPUBLIC

Content hashes

Canonical text962331e8a91439fb3f2bfa2c6e8c225d728524e2b64984860b26c27018363777
Markdownb138c62771552755b22cfcdc5ef5bce51586a0baaadbc7847d26f5f7503437bb
PDF
Publication paged7767d890e67367590839895a7d1fd4ab6bf5e17f43e50654440844bc7dffddd
Manifest59e36e7832115debe0b3b9c12781d9c6f73a5f780cbc2f766a50a3d20cbeacfc

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
SignaturewpJdZm/thUBP1rpAG3w850lJt+jE8taLS9BvxpvQzy+jy/LF7nqKb/SHkTQcSUOTZ8htrOJuiAkDteayvWtaCw==
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

2026-09-17T11:39:40.436872ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029173
observed d7767d890e67367590839895a7d1fd4a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:40.418087ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029173/manifest.json
observed 59e36e7832115debe0b3b9c12781d9c6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:40.398623ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029173/publication.md
observed b138c62771552755b22cfcdc5ef5bce5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:40.380369ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029173/publication.txt
observed 962331e8a91439fb3f2bfa2c6e8c225d...
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.