OpenTechnical

OT-2026-000006700

Publication integrity record

Porous face vacuum gripper, common isolation valve, pump fed, vented after set down, closed cell

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-2026-000006700) never changes.

Identity and time

Publication numberOT-2026-000006700 · never reused
Internal UUID01a0a964-6560-79d6-8cb4-292e58a2022b · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:45:24.194851Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006700
StatusPUBLIC

Content hashes

Canonical texta9118b7a18e798e30f7a7f6af99536025cf3442329792d8526be7c035a6074a7
Markdown7203a932349a4f5dc5648fd5814d964f2b69532261c112d7cef834f4db844836
PDF
Publication pagec82d58276ffb1fdba842dee8ddc6795c7de219501201e2370f1140172ae1a61b
Manifest649cf12c7bf945de107e9fa3935036873f86dd91de30a2a0b6c0bc408ce4c327

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
Signature1HiM2BKLwKx+lzInGf8pmYQ3nvSD4A047eH0RLOngyP/YSpZPped9nj/y4VBWlFLevd+ixyOLQLxBYSS96DsDQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:50:15.877929ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006700
observed c82d58276ffb1fdba842dee8ddc6795c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:15.754085ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006700/manifest.json
observed 649cf12c7bf945de107e9fa393503687...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:15.739751ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006700/publication.md
observed 7203a932349a4f5dc5648fd5814d964f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:15.726271ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006700/publication.txt
observed a9118b7a18e798e30f7a7f6af9953602...
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.