OpenTechnical

OT-2026-000062209

Publication integrity record

Single cup vacuum gripper, pump fed, supply line pressure sensor, vented 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-2026-000062209) never changes.

Identity and time

Publication numberOT-2026-000062209 · never reused
Internal UUID01a0ae8c-0abd-7a59-8c54-93954c019963 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:46:48.542263Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000062209
StatusPUBLIC

Content hashes

Canonical text8c7d5c4a0dbb4e0abc202aaab0786f88c9926671c92bcd4f7608c5cb3ad60a00
Markdown82c613ff42d6ad516e69cf411c0fbcd86081ec7edb5be2b2668d91778517e4c8
PDF
Publication page9857eda31acdb7610221d92c592cddf33909e024fb0c76f54c95b33ae4956f47
Manifest491980af01b3866215caecf6b46018fc1bb0fa5d7c346172034cab593b728fdc

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
Signature3/3Cz836hZRyFeEj5Z8D0mEliKqY17mGOZ6pQhctYndkCrThj3jZcsxUQ4i3gr7JVtn/B5W7AV/nSWVdDdfgCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:39:28.592411ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062209
observed 9857eda31acdb7610221d92c592cddf3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:28.574124ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062209/manifest.json
observed 491980af01b3866215caecf6b46018fc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:28.555673ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062209/publication.md
observed 82c613ff42d6ad516e69cf411c0fbcd8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:28.538257ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062209/publication.txt
observed 8c7d5c4a0dbb4e0abc202aaab0786f88...
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.