OpenTechnical

OT-2026-000074040

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, two stage ejector, supply line pressure sensor, vented 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-2026-000074040) never changes.

Identity and time

Publication numberOT-2026-000074040 · never reused
Internal UUID01a0ae93-2b8f-7d68-997c-a6ea5e87f6e5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:35.679268Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074040
StatusPUBLIC

Content hashes

Canonical textce8b461f871ee8afecbbf58fdec64d805cf5984b1b7789cfae6a26d881ec3b14
Markdown7955032df1dea648e6672c9c7c75472f20a3dcd031ab9821d50265040851e746
PDF
Publication page58d48c275ee8ff69b0d4a10a699ecf044bc34b867d0dda0c0d6a7bd82c482416
Manifestb83c8479964a015293bf08b75bbb5b9195554f96efda45578315205beb89f235

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
SignatureNNAippWoxR2Wx0MfHp0Zq+mrPwQETxOBvubTIy1yfe9Kmd+9+ULxa8QVuodAGdVCA48dXBsC6l+Hp2MVv4EhAw==
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

2026-09-17T10:20:21.661343ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074040
observed 58d48c275ee8ff69b0d4a10a699ecf04...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:21.642213ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074040/manifest.json
observed b83c8479964a015293bf08b75bbb5b91...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:21.623507ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074040/publication.md
observed 7955032df1dea648e6672c9c7c75472f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:21.603146ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074040/publication.txt
observed ce8b461f871ee8afecbbf58fdec64d80...
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.