OpenTechnical

OT-2026-000025561

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, supply line pressure sensor, 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-2026-000025561) never changes.

Identity and time

Publication numberOT-2026-000025561 · never reused
Internal UUID01a0ae71-5fa8-7775-8bf9-04dae7181d68 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:17:40.790954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000025561
StatusPUBLIC

Content hashes

Canonical textc9c15f184234d028bdee5cc19aa7fcb77ca981ab003068567dcc3717c8508059
Markdown3d7b0809d29a6e1b205b18a83225401767d2a80a43a9e64b0fbcb3064ebbca50
PDF
Publication page9c7fd45192bbc408eb9a166db129bd7d990fe7df88f9402b3eae48880ea22547
Manifest32584df72e9a3f483e05e1d6ac5296432b2776337cae09fd4d06c9d7e8ad9b84

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
SignatureaHasR0dK/NqPTceWp+f3u13qiSE1nO6BH3eCLoZwOiROHBiNhv9CMFJEijKT2/bTDp2uIN37QOCW5PHUj8gDDA==
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

2026-09-17T11:47:42.890032ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025561
observed 9c7fd45192bbc408eb9a166db129bd7d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:42.872973ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025561/manifest.json
observed 32584df72e9a3f483e05e1d6ac529643...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:42.854727ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025561/publication.md
observed 3d7b0809d29a6e1b205b18a832254017...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:42.837184ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025561/publication.txt
observed c9c15f184234d028bdee5cc19aa7fcb7...
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.