OpenTechnical

OT-2026-000084591

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, plant vacuum fed, sustained 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-2026-000084591) never changes.

Identity and time

Publication numberOT-2026-000084591 · never reused
Internal UUID01a0ae98-e25b-7cd7-b43c-d73873e19897 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:00:50.163111Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000084591
StatusPUBLIC

Content hashes

Canonical textb91ae90f2c7e932a520a0f93f947d0b7e16fdd5ce87f9a2bc0c648083cf74123
Markdowndf9b17129066922ac520b2d26d5b3e37576dc312595521622cf85c950d4430e1
PDF
Publication page3142995c9a1dec2a2da6a646cc7417b9315134224883a7f325d5ead82426fc1d
Manifest98a77833221a3345285d4eced40a7e87ab986d57e9748fcb72c57644ad6e1d48

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
Signature6VRNRBX8yTro+wvXeq3eVxXPbOyJ2JYUOX+zaZ4L7q3ykZCxW5uhDr63FPwItVE1imHEBKg1CE8tPHbLPAvyCQ==
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

2026-09-17T09:55:29.689182ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084591
observed 3142995c9a1dec2a2da6a646cc7417b9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:29.672846ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084591/manifest.json
observed 98a77833221a3345285d4eced40a7e87...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:29.655315ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084591/publication.md
observed df9b17129066922ac520b2d26d5b3e37...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:29.637420ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084591/publication.txt
observed b91ae90f2c7e932a520a0f93f947d0b7...
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.