OpenTechnical

OT-2026-000056175

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, pump fed, supply line pressure sensor, pulsed 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-2026-000056175) never changes.

Identity and time

Publication numberOT-2026-000056175 · never reused
Internal UUID01a0ae87-0a4c-7d3d-b159-604e3e0aec42 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:20.734835Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000056175
StatusPUBLIC

Content hashes

Canonical text1c98f0022498582ec97b2dc9ce9d1e895e96779f01765c76eecbd626687228ff
Markdown34e08b95aa5840f5d319b84ae6870425ca4f6a28d32bdc76fd20ce46bb60c569
PDF
Publication page3b521c2e147297ca146744c51715149fc7cfcbb547139a1d0c878b95cf59dcb3
Manifest9799ee125a92e80a6df0b5c5d9abaa0095f561175f0425ebf488a8dd2c1cf955

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
SignatureHUG//FpmXwVfHnMhGyW7HBdkzUR33EM0MxUpF5w/D0zLCM+LMLw/HRbOrlSvkWRtOcFBfCOkJFNMj+Xf1Dp2Dg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:51:44.165029ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056175
observed 3b521c2e147297ca146744c51715149f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:44.146105ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056175/manifest.json
observed 9799ee125a92e80a6df0b5c5d9abaa00...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:44.127936ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056175/publication.md
observed 34e08b95aa5840f5d319b84ae6870425...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:44.110649ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056175/publication.txt
observed 1c98f0022498582ec97b2dc9ce9d1e89...
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.