OpenTechnical

OT-2026-000090671

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, two stage ejector, pressure sensor per zone, sustained blow-off 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-2026-000090671) never changes.

Identity and time

Publication numberOT-2026-000090671 · never reused
Internal UUID01a0ae9c-7f30-7c7f-811f-18067d7325c1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090671
StatusPUBLIC

Content hashes

Canonical text0255a0a471dba89d6d63b01d8bf6da40c930b8b51cdd471f49618e8ab87a9a82
Markdown2e833a84cc12a36fa9ef1fe905898795dbf8357e811a35a54422809e9a08a262
PDF
Publication page4bb0fb2d873285dc0b5dcb10c6a76d310cbd30b5afe2c54006189c2409739866
Manifest287a156e3fd32cb13b467ecd18c13bb4ad7d574ae4a6b822da2ae2a8739eb849

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
SignatureDpM468hckYi5+UxbZ7Z3bHHfPEX2m8iCiJo+9fpgnbIhWDjrxi4VXuRg7GmVjniNcOFjo/uuM0J1RZegpSI2Cg==
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

2026-09-17T09:44:51.973571ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090671
observed 4bb0fb2d873285dc0b5dcb10c6a76d31...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:51.957627ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090671/manifest.json
observed 287a156e3fd32cb13b467ecd18c13bb4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:51.939765ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090671/publication.md
observed 2e833a84cc12a36fa9ef1fe905898795...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:51.922889ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090671/publication.txt
observed 0255a0a471dba89d6d63b01d8bf6da40...
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.