OpenTechnical

OT-2026-000043913

Publication integrity record

Single cup vacuum gripper, plant vacuum fed, supply line pressure sensor, sustained blow-off after 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-2026-000043913) never changes.

Identity and time

Publication numberOT-2026-000043913 · never reused
Internal UUID01a0ae7b-d678-7c4c-a12e-3b4656d42e33 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:29:06.584190Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043913
StatusPUBLIC

Content hashes

Canonical textab40c36b9ca5db008b6f2291d47af61df8406d03e0cdf34046370ab490a85a60
Markdownfa68439effaf682f4370c2a14bd7bdf0c3b0f03729d708068255c76f660aabfd
PDF
Publication page0e675c3ad8c89d7cc4ebc2dda66af827f633519939f93a734d3c7fdc65ce9db9
Manifest8010357baf1cd9d5ed7b9e1ce3fad0578b4a0d1574b265b506a4cbe38534f3fb

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
Signature3XzTCOphHkA5Jtf0ejGkRbkBPwIEZvHhLEYahvincsgMDy+RmX9SH3w7xljbF++b3XMwHa4kXtlsC8Qt2Y0DDg==
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

2026-09-17T11:12:15.341011ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043913
observed 0e675c3ad8c89d7cc4ebc2dda66af827...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:15.318122ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043913/manifest.json
observed 8010357baf1cd9d5ed7b9e1ce3fad057...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:15.296092ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043913/publication.md
observed fa68439effaf682f4370c2a14bd7bdf0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:15.273166ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043913/publication.txt
observed ab40c36b9ca5db008b6f2291d47af61d...
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.