OpenTechnical

OT-2026-000068408

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, plant vacuum fed, pressure sensor per zone, 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-2026-000068408) never changes.

Identity and time

Publication numberOT-2026-000068408 · never reused
Internal UUID01a0ae90-2481-7874-9eb4-55d5da5a1098 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:51:17.262143Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000068408
StatusPUBLIC

Content hashes

Canonical textf9d87fb83a8dc36222ab0117156bd25e771214a41b9ad8f8e52572f55ad169f3
Markdownf1db0ac599332a536e2faac9974de4899d73dd6719c97dfd776a6588ee64753f
PDF
Publication page6963a7d2d643ee72ee421bff4f16d641fa87e7901efe17fc965a3d926f4a0943
Manifest8427806e03b6e5b5e9af631faa7cba91cd26ec91841ab8aeeed99f5c7384b33f

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
SignatureJzYMtV+0fOfzjyKjiGqPOlKn/mjr7GELlbJmaoamJnH/sEi5VZGchE1JHcPksSZ+6+2/X3h+i5wa8i4Fg/wOAg==
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

2026-09-17T10:29:32.410031ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068408
observed 6963a7d2d643ee72ee421bff4f16d641...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:32.392188ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068408/manifest.json
observed 8427806e03b6e5b5e9af631faa7cba91...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:32.374288ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068408/publication.md
observed f1db0ac599332a536e2faac9974de489...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:32.356304ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068408/publication.txt
observed f9d87fb83a8dc36222ab0117156bd25e...
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.