OpenTechnical

OT-2026-000020296

Publication integrity record

Single bellows cup vacuum gripper, pump fed, 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-2026-000020296) never changes.

Identity and time

Publication numberOT-2026-000020296 · never reused
Internal UUID01a0ae6f-437a-7fb3-b88b-caf5ce421370 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:22.507199Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020296
StatusPUBLIC

Content hashes

Canonical texta779f2e3abf4c8de6daf3e2e4cc75c8e8d77a8ca9609bd236737f836a397eec4
Markdowne3c1fb33768b27c3352624cbe173e74881d718205c86e48ade9639e8d1e3e76e
PDF
Publication page960a635608908423adbd5cbb089b4131987e180078587d3df168cf2aceb556a8
Manifest1081671b5f25df564d384ad0884c782551ecd5f5fe3912f317ff78f19e36ab09

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
Signaturek0YYy2ieYlFikcWXtcW+dGhTPKgWJbI1tvB7aVvrQsra2DQW3oYndIY/62vRuJflBbBPUJYNKYuxI6RuEAWqCw==
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

2026-09-17T11:56:39.581103ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020296
observed 960a635608908423adbd5cbb089b4131...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:39.562783ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020296/manifest.json
observed 1081671b5f25df564d384ad0884c7825...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:39.542580ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020296/publication.md
observed e3c1fb33768b27c3352624cbe173e748...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:39.524166ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020296/publication.txt
observed a779f2e3abf4c8de6daf3e2e4cc75c8e...
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.