OpenTechnical

OT-2026-000029159

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, two stage ejector, pulsed 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-2026-000029159) never changes.

Identity and time

Publication numberOT-2026-000029159 · never reused
Internal UUID01a0ae73-2aa0-7a47-bced-3f0453bca9ad · 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-2026-000029159
StatusPUBLIC

Content hashes

Canonical text028e11815b5f96cd5038cebee24b3d954c25c925dc30a4d9acf385ca70f32ed6
Markdownc2f4c9de09a92fd0263ea4f77640141ad180472785515e31a354615d7b5191fe
PDF
Publication pagec307c31366d6123c774fd93cab539361857e9914eea6ca443e534773e67be5e4
Manifest509b55ad67a696a66242b0d9732aa7d073c4e70422e28945e1427ca1c63193be

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
Signaturet1a1S3TXOUMwzvghkmyjKSCiz8eOXfSOj9ZxQmiT8FRIBaPrWq1KK2bN03qV50khLsx9vsG0VMJb4QrpyOLFDA==
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

2026-09-17T11:39:39.136856ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029159
observed c307c31366d6123c774fd93cab539361...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:39.118509ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029159/manifest.json
observed 509b55ad67a696a66242b0d9732aa7d0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:39.100592ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029159/publication.md
observed c2f4c9de09a92fd0263ea4f77640141a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:39.080807ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029159/publication.txt
observed 028e11815b5f96cd5038cebee24b3d95...
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.