OpenTechnical

OT-2026-000013835

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, three stage ejector, 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-2026-000013835) never changes.

Identity and time

Publication numberOT-2026-000013835 · never reused
Internal UUID01a0ae6d-8de9-7fd8-8073-f5a4a99e149d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:30.489074Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013835
StatusPUBLIC

Content hashes

Canonical texteb4bf65a5901ab385d930a63eafbe5f101707370203967e52690ae191ad0b736
Markdowne7e866ea97edacf717df2de6cad9c93588b089a48fbc38c070041a1a123402b8
PDF
Publication pagec5b6c5239903702cbb30230fe6f978a8b08eeb4344adb36575c77ea32ec92945
Manifestce749d09b02c490a1192155928f6325e75a705a9858b9f89cfeccd0d272b4dc7

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
SignatureW3cGnLbQgyMqy0cKYsxZqfnxdj4YB+qASjDfMA43EwnhKAKhs4JdMT2haih5wXlDn/elugtPg85EDWtIRFaWBw==
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

2026-09-17T12:08:56.318085ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013835
observed c5b6c5239903702cbb30230fe6f978a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:56.300556ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013835/manifest.json
observed ce749d09b02c490a1192155928f6325e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:56.283270ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013835/publication.md
observed e7e866ea97edacf717df2de6cad9c935...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:56.263677ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013835/publication.txt
observed eb4bf65a5901ab385d930a63eafbe5f1...
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.