OpenTechnical

OT-2026-000020496

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, 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-2026-000020496) never changes.

Identity and time

Publication numberOT-2026-000020496 · never reused
Internal UUID01a0ae6f-437c-789e-857a-13244b37bf66 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:22.507199Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020496
StatusPUBLIC

Content hashes

Canonical text94d27c5259e56ea80430522c79d59eaa0fe0631913bdf416691dbb58c48d71ac
Markdown78527e7c929708e1ee0b399e20af4cb4634667e5a0090715c3ce2a67240e1047
PDF
Publication page0ac76ab8af09f54d81af19e028a79b62854f0e3caee905268f901d97958824cf
Manifest065fe9f1b464baaf5502095b478b56b4855b05e036dae96e04a2ca4182895e60

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
Signaturesm80qTyfqUDQ8ZSXtLCE2pSRws8I/EgrDEfyaToGiXBPwLDKiJu7E+Ht7Ecqve8WZvJgVqfj9cg+tG/0cP6VDw==
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

2026-09-17T12:00:27.037882ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020496
observed 0ac76ab8af09f54d81af19e028a79b62...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:27.015380ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020496/manifest.json
observed 065fe9f1b464baaf5502095b478b56b4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:26.995151ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020496/publication.md
observed 78527e7c929708e1ee0b399e20af4cb4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:26.975513ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020496/publication.txt
observed 94d27c5259e56ea80430522c79d59eaa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:30.328088ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020496
observed 0ac76ab8af09f54d81af19e028a79b62...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:30.306965ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020496/manifest.json
observed 065fe9f1b464baaf5502095b478b56b4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:30.288983ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020496/publication.md
observed 78527e7c929708e1ee0b399e20af4cb4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:30.272294ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020496/publication.txt
observed 94d27c5259e56ea80430522c79d59eaa...
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.