OpenTechnical

OT-2026-000031715

Publication integrity record

Three bellows cup vacuum gripper, three zone face, four outlet manifold, 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-2026-000031715) never changes.

Identity and time

Publication numberOT-2026-000031715 · never reused
Internal UUID01a0ae74-bad0-7dd3-aa52-75840efaa08e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:20.739935Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031715
StatusPUBLIC

Content hashes

Canonical textccbff9f588607e4cb223338dd6d6b3c00380d6036d616e3af6006b7f8c4912d6
Markdown07286a6d72a639e7a16e82199071b9c35499f0c5c9294bc7314a87b7812099cd
PDF
Publication page35db5142e6a8181485d82017e1ff3b689b66bdfa78722589e55369dc4dbe768a
Manifest95bd6af6bd9803cca4798ea256c12bcbdd0b7bb69bc7ed9cd91a02246f809433

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
SignatureBRs64xuVktTawIgYy8KuVATsYHKZsUvDtmCa7yapL9X+OH6nMQdywSshVdLzu3XQP5Dtm/yzEkhVV7gEEmLPDw==
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

2026-09-17T11:34:49.533424ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031715
observed 35db5142e6a8181485d82017e1ff3b68...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:49.515242ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031715/manifest.json
observed 95bd6af6bd9803cca4798ea256c12bcb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:49.497945ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031715/publication.md
observed 07286a6d72a639e7a16e82199071b9c3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:49.482148ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031715/publication.txt
observed ccbff9f588607e4cb223338dd6d6b3c0...
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.