OpenTechnical

OT-2026-000019485

Publication integrity record

Single cup vacuum gripper, common isolation valve, three stage ejector, supply line pressure sensor, pulsed 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-2026-000019485) never changes.

Identity and time

Publication numberOT-2026-000019485 · never reused
Internal UUID01a0ae6e-f393-7e6a-b7e3-de25203c8929 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:02.050431Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019485
StatusPUBLIC

Content hashes

Canonical text7d0384571d8bf762e9c97682d58981fbbe5dc2b683a0ecc048541707cfc7fdb5
Markdown75fb0f2133f918996d478dae5a8dafc6a994bf4e3a28358c5a886e8b85c65528
PDF
Publication page26b1120ef05a6dc9916f7ef32b841880a98dbb8946ee8aaa1d9ec425de0dc4e3
Manifest1e2e5836cc9857babb8e5603d40fe781151439abd30131843876239be53c051b

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
Signature5bhK/67zA+56eFx2rMzibZK5BP2Kd/KPnejLrZ2aVj8/dHseCxTxIWr/dIHw6cbeXSrRvg4oqzpiS65VgRPLAQ==
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

2026-09-17T11:58:54.532347ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019485
observed 26b1120ef05a6dc9916f7ef32b841880...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:54.513263ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019485/manifest.json
observed 1e2e5836cc9857babb8e5603d40fe781...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:54.494397ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019485/publication.md
observed 75fb0f2133f918996d478dae5a8dafc6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:54.476543ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019485/publication.txt
observed 7d0384571d8bf762e9c97682d58981fb...
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.