OpenTechnical

OT-2026-000049816

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, pulsed blow-off after set-down

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-2026-000049816) never changes.

Identity and time

Publication numberOT-2026-000049816 · never reused
Internal UUID01a0ae81-8ff0-7946-8041-674a14b3e698 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049816
StatusPUBLIC

Content hashes

Canonical text52b80362aea0a456b2b8cfe9aba2e68f4aff4d5b05391da4c54950041e8269cd
Markdownfd578471bb70e41cf461d83dbb4d70fad7ce2f3ef4e6321a16678537e625b882
PDF
Publication page4a800be93717d197827d5e7c4b2d9aaad2407e8901f337593557bc92dc406d71
Manifest4748f10ec7a7d804daafa1e9c6b683e5ffbfd722f9c513c90760a22908ef8026

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
SignaturexBOEaBNUsgMzVK6QCSDmnx/V2mFyDMVWxYzd8deocB3+QrtY87ff+L7U5kxeg5Hq9pKvmb5Bkz7cdrKRzh4QDA==
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

2026-09-17T11:02:56.799811ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049816
observed 4a800be93717d197827d5e7c4b2d9aaa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:56.780497ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049816/manifest.json
observed 4748f10ec7a7d804daafa1e9c6b683e5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:56.762510ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049816/publication.md
observed fd578471bb70e41cf461d83dbb4d70fa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:56.742682ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049816/publication.txt
observed 52b80362aea0a456b2b8cfe9aba2e68f...
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.