OpenTechnical

OT-2026-000075600

Publication integrity record

Single bellows cup vacuum gripper, plant vacuum fed, 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-2026-000075600) never changes.

Identity and time

Publication numberOT-2026-000075600 · never reused
Internal UUID01a0ae94-29fd-7c67-91c7-19d8107a5376 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075600
StatusPUBLIC

Content hashes

Canonical text3ae05cf190572c0b1827702a183552eb4216399ee35b550156853281bd83eba5
Markdown70e872e973fc98485941f68b190cc0795272d2d142f08b990e76c807db8ed124
PDF
Publication page80baa3706f2d7d44e93f8fc7800190d91b3490828efe3abac09186fa57e897f2
Manifesta48e094aa4a60e0f77b1d7a6430335912b64ca903924c3deeaae1acef00a4f93

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
SignatureLSPtOsZZlTF59pd6QUKBODPTF64pNKJCVo647bf3HtbxKU+pUGuRJGF+oOGLfBUDp6M88USiv9heaNv5+P5kAA==
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

2026-09-17T10:13:15.967762ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075600
observed 80baa3706f2d7d44e93f8fc7800190d9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:15.945909ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075600/manifest.json
observed a48e094aa4a60e0f77b1d7a643033591...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:15.801674ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075600/publication.md
observed 70e872e973fc98485941f68b190cc079...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:15.779703ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075600/publication.txt
observed 3ae05cf190572c0b1827702a183552eb...
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.