OpenTechnical

OT-2026-000015468

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, 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-2026-000015468) never changes.

Identity and time

Publication numberOT-2026-000015468 · never reused
Internal UUID01a0ae6d-ef4a-794d-9cb0-f30214ee01ed · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:55.421510Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015468
StatusPUBLIC

Content hashes

Canonical text9b1352c1cc52101748628f51b8a828ae9846ef7e6f18be226a844463d6e9d192
Markdownf88dc0d4189fa95dca9e73adb2ba463278f9a2b8b50033d95efcc07487dd5386
PDF
Publication page8eccb8b4361a55e130fd11fb5831554aefe30d19f300d3c2cc85575d0fb4cd73
Manifestf5e08b876aec82c5faa048465cd1e98c3e95800f00666b8de91006bc208e5475

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
SignatureTyyHlCjCgoOw9uE++0tbfX7Duad/HXIcif/ABGXTgTQFqPM77zRYYE0et/jkM37bbn2LMdnzCCVM3F9e7FJhDA==
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

2026-09-17T12:06:13.342952ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015468
observed 8eccb8b4361a55e130fd11fb5831554a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:13.322563ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015468/manifest.json
observed f5e08b876aec82c5faa048465cd1e98c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:13.304244ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015468/publication.md
observed f88dc0d4189fa95dca9e73adb2ba4632...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:13.286019ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015468/publication.txt
observed 9b1352c1cc52101748628f51b8a828ae...
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.