OpenTechnical

OT-2026-000071157

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, plant vacuum 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-2026-000071157) never changes.

Identity and time

Publication numberOT-2026-000071157 · never reused
Internal UUID01a0ae91-e0eb-7d15-a6c1-55de58c4e2d4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:11.039722Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071157
StatusPUBLIC

Content hashes

Canonical textadf3ed00f3fcbc1fe7a6e136f9ff7161983c890ed1b35a42875a35f6ba3f7146
Markdown6650946fc6e5c7d8b5f689c24afbe7d1ccefa2102942100f99c60d6dab9f0d2f
PDF
Publication paged913c9c7aedfc56c859c7d293ee63b59b385553408cfb028e2079d41e6513960
Manifestf811b7f07b4791024db65a84c01502faee13929266e946ee6202ff5a81a94f7b

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
SignatureKleQUCqwKbUf5R61g4mDQFIYrKZYa0Bw9wifQX864VUnADKyoFUKcltMvuIW/7zO9qqU3uFIUyKQPu4GWhO+Aw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:24:39.810282ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071157
observed d913c9c7aedfc56c859c7d293ee63b59...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:39.792222ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071157/manifest.json
observed f811b7f07b4791024db65a84c01502fa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:39.775738ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071157/publication.md
observed 6650946fc6e5c7d8b5f689c24afbe7d1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:39.760042ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071157/publication.txt
observed adf3ed00f3fcbc1fe7a6e136f9ff7161...
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.