OpenTechnical

OT-2026-000029823

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, three 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-2026-000029823) never changes.

Identity and time

Publication numberOT-2026-000029823 · never reused
Internal UUID01a0ae73-ac47-715e-af0c-a7d8cedffd2c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:11.501096Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029823
StatusPUBLIC

Content hashes

Canonical texta0b5495a5609ded589c9da24d4bcfa86933a29870ae2732badb450dfe33d5987
Markdown51a3e20f823082095bfff1b013de577eeffe3f559de0530e7b32d83500f1851a
PDF
Publication page226ac494bbd349eb4d4ab501dae60419557579d6963e48b8d20a013c92fb7546
Manifest7a33a64c160601b0b3dd34d35c09c0cb36d71a6970f4d86ffc16f852ce48bb87

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
SignatureMQBdik7mR/6JJfhafCuxtZMfxVvbj5CBzzzdJH7j8hVmU9Iadk5991yAWTdMgb9jyJWXWhsSXwhysWbdbTP6DQ==
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

2026-09-17T11:38:29.944931ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029823
observed 226ac494bbd349eb4d4ab501dae60419...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:29.928655ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029823/manifest.json
observed 7a33a64c160601b0b3dd34d35c09c0cb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:29.909400ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029823/publication.md
observed 51a3e20f823082095bfff1b013de577e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:29.891848ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029823/publication.txt
observed a0b5495a5609ded589c9da24d4bcfa86...
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.