OpenTechnical

OT-2026-000027687

Publication integrity record

Four bellows cup vacuum gripper, four zone face, plant vacuum fed, 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-2026-000027687) never changes.

Identity and time

Publication numberOT-2026-000027687 · never reused
Internal UUID01a0ae72-699a-7f83-8476-48e0fc910da2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:48.928538Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027687
StatusPUBLIC

Content hashes

Canonical text6b6948f9c02fbccf401329bea28539d2a403b2652ec05ccf3bd51db1ea54f24e
Markdownece99bc3de34f96437285f22296123e422be138129480b19b6a89fa0f0877507
PDF
Publication page7e06826ab660afb171320688960d80b38c83d6026e875c3c30f264cbb56e886f
Manifestb6d960e742d29d79d6b6376801bbd3bc5042ca1bd91b382cf5eecbcc17ca9972

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
SignatureJ3w4aX8ACCPj9y7ivB7+Aqa4xjyCR88zoySW90X8znXOT/TS1Wqbjw4wjOm2tqcKmadltX834mnv1SivoWfUDA==
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

2026-09-17T11:43:13.653910ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027687
observed 7e06826ab660afb171320688960d80b3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:13.635154ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027687/manifest.json
observed b6d960e742d29d79d6b6376801bbd3bc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:13.618070ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027687/publication.md
observed ece99bc3de34f96437285f22296123e4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:13.601108ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027687/publication.txt
observed 6b6948f9c02fbccf401329bea28539d2...
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.