OpenTechnical

OT-2026-000022953

Publication integrity record

Four cup vacuum gripper, four outlet manifold, two stage ejector, sustained blow-off 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-2026-000022953) never changes.

Identity and time

Publication numberOT-2026-000022953 · never reused
Internal UUID01a0ae70-46ec-7a3d-bdc1-02c1283fef79 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:28.929798Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022953
StatusPUBLIC

Content hashes

Canonical text535fcc0b0c3c56f12d5e2b9c90ff9da9c11e435afd60218cf72109dbc863b471
Markdown04f8a98ecc01b2fc1c9ce4b629c982ee3dc77168be4e1fd385e9ce4863337656
PDF
Publication page37c7ac314dadb43479aaeaa24139aafd50527b21054c4f5eccc51e5d61180940
Manifest22b9151c6759bf66e56708ec7c408fbd42cef2fc139a18fea910aa140809805e

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
SignatureKwx+hAjzkWhRhco0ovXjnlq1WbsJLuh1jqrdG/O52X88qHxbtDojKwIIbPXzuGpPvvK+SK4nqC2G2Q/wjbI+Cw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:52:32.232450ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022953
observed 37c7ac314dadb43479aaeaa24139aafd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:32.217042ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022953/manifest.json
observed 22b9151c6759bf66e56708ec7c408fbd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:32.201679ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022953/publication.md
observed 04f8a98ecc01b2fc1c9ce4b629c982ee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:32.186959ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022953/publication.txt
observed 535fcc0b0c3c56f12d5e2b9c90ff9da9...
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.