OpenTechnical

OT-2026-000072210

Publication integrity record

Single bellows cup vacuum gripper, pump fed, supply line pressure sensor, vented before 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-2026-000072210) never changes.

Identity and time

Publication numberOT-2026-000072210 · never reused
Internal UUID01a0ae92-47c2-7030-9530-dde244281620 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:37.365346Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072210
StatusPUBLIC

Content hashes

Canonical textc5210bc01d34ec7879b955d3ffafd48b69b6b74def515940abb620cbc5265da7
Markdown77c26f8ddf22db9dce132a491bc5f25b125054a07a28f4573273b9869cc1c313
PDF
Publication page91991d457dfa5a2290f4f54cf321d7760c9e3583adf8df6d96591386d7946998
Manifest30142164edbbeed3557de141a022f4cbe9c55ae4c524d54c69f2abdb47377bfe

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
Signature4kh3HGR8JSZS02bB2s0REJsRzoRClCMOb3CsxtbGEHEjlkUMQNcOWQA+v8qIpmeZEzwy3vqkDGuqHOJRlzPfBw==
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

2026-09-17T10:23:18.717410ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072210
observed 91991d457dfa5a2290f4f54cf321d776...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:18.702380ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072210/manifest.json
observed 30142164edbbeed3557de141a022f4cb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:18.685858ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072210/publication.md
observed 77c26f8ddf22db9dce132a491bc5f25b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:18.671082ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072210/publication.txt
observed c5210bc01d34ec7879b955d3ffafd48b...
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.