OpenTechnical

OT-2026-000007380

Publication integrity record

Vacuum cup gripper, plant vacuum fed, pressure verified, contact triggered, vented after 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-2026-000007380) never changes.

Identity and time

Publication numberOT-2026-000007380 · never reused
Internal UUID01a0a97c-b8ee-73f9-8856-ea7333d8c68d · UUIDv7, RFC 9562
Publication timestamp2026-09-16T09:11:58.449514Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007380
StatusPUBLIC

Content hashes

Canonical text8d8a147dbf6ebb9a90884da9cf6d2128923a9d8cd4a23519ff45256c53c27e57
Markdownde65fdea39e1b3a255ea95c433d07e70a158b1dace8e395cdc9161256852615e
PDF
Publication page76d4b77786cbd63a56507766a0a31252e8c94706162d85dbf5af05361ddf7000
Manifest654744b08b6e52c5315cfb57b46dbc7b2e595631300007408813fce32bafb2c2

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
Signaturei0fBM6lDZhbplTyo9gQtpELGY9rhwQI2Yg6cJT86I2J/XgajF8JqeWu+7DUX5Dcmft3dSVM3jaBK8yS2Kx1ACw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:20:33Z
batch OT-TS-2026-W38-015 · RFC 3161 token · inclusion proof
root 07bfbe2fb3517c1c41f239fb2e682fbe...

Independent retrieval

2026-09-16T09:20:08.629811ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007380
observed 76d4b77786cbd63a56507766a0a31252...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:08.617045ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007380/manifest.json
observed 654744b08b6e52c5315cfb57b46dbc7b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:08.602786ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007380/publication.md
observed de65fdea39e1b3a255ea95c433d07e70...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:08.589868ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007380/publication.txt
observed 8d8a147dbf6ebb9a90884da9cf6d2128...
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.