OpenTechnical

OT-2026-000032693

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, pulsed 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-2026-000032693) never changes.

Identity and time

Publication numberOT-2026-000032693 · never reused
Internal UUID01a0ae75-1070-7b2e-8dec-2ed95d24d233 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:42.658092Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000032693
StatusPUBLIC

Content hashes

Canonical text8a6ae9f26b749493179987a47888c6f54454da0a5972c566a37e6c259a61c533
Markdown22006145f019d7f6ca40064c3a658b20a1709ae54036254da800d4a49624c53c
PDF
Publication pagea2c75650648613bdc87fe2d2d1312c24fa4dbf8509c8e30e5f5d25e469c26a6b
Manifest3e16c40da9e425bb6e6163d2cf77ac8d99b7b7ac3af4d59d1f4c60bbaa0dcc73

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
SignatureTIa6t8e7M19Wcs75UlM4PwwZzuO7cHMIpNFOk9X3ed7Qy/T18Kr/qBtRtD1cf6HuB/FHwtHUgCsfHF76zP45DA==
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

2026-09-17T11:34:18.223017ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000032693
observed a2c75650648613bdc87fe2d2d1312c24...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:18.206775ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000032693/manifest.json
observed 3e16c40da9e425bb6e6163d2cf77ac8d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:18.190335ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000032693/publication.md
observed 22006145f019d7f6ca40064c3a658b20...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:18.174209ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000032693/publication.txt
observed 8a6ae9f26b749493179987a47888c6f5...
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.