OpenTechnical

OT-2026-000017731

Publication integrity record

Four cup vacuum gripper, four zone face, four outlet manifold, 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-2026-000017731) never changes.

Identity and time

Publication numberOT-2026-000017731 · never reused
Internal UUID01a0ae6e-96fa-7f89-87f5-f3545b6286b0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:38.350302Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000017731
StatusPUBLIC

Content hashes

Canonical text0318955210a2f93e39a6b8b755cc7a5aee71033beb7604512f1b0abc094156a3
Markdown9ec837b6b929bfc6245d42c2141c699ac8e1c681b9d29313aba8f34461d750fa
PDF
Publication page8e2ce5671e9a6a2bad059c19adde281b92973c06eae96dc243a055bb86dcb291
Manifest043ea015802974f1fc234c4b7e59eff4d6627d59c4559a6a7cbeba9715a474ef

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
Signature81TKNYOhKsBFa7LUzkhFoVyJowHxa/mrmkmKzktwul9WGJLLIbsI/3wYWYgae88GrDJbHVC0lIa5tyFFgSsyBw==
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

2026-09-17T12:01:40.929134ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017731
observed 8e2ce5671e9a6a2bad059c19adde281b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:40.911990ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017731/manifest.json
observed 043ea015802974f1fc234c4b7e59eff4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:40.896154ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017731/publication.md
observed 9ec837b6b929bfc6245d42c2141c699a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:40.879848ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017731/publication.txt
observed 0318955210a2f93e39a6b8b755cc7a5a...
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.