OpenTechnical

OT-2026-000028816

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, two stage ejector, 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-2026-000028816) never changes.

Identity and time

Publication numberOT-2026-000028816 · never reused
Internal UUID01a0ae73-2252-78c0-a688-1135149f6014 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:36.158293Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028816
StatusPUBLIC

Content hashes

Canonical text017c61ff2a87de4cf184eb34d136e5af79573be7656119998d958c97a814b676
Markdownd603af70c9a8ae12687bbbf65390fbe109b757993de751d8337e72003f3a84e8
PDF
Publication page876134b91512398552c85e415470fbd4167b94b8b4f1b2d4e82f5bea16a894de
Manifestf0cc4e2b9d891e986d23f731c1571f6b5e4cc5cdac074a4f977c08cee63e5cc2

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
Signature2NF27BVHf3KHn+8f7wZLQ9w13hOI3cLhKkxS2LziMwgD7iudK5Z1aLAqEOKuxTwzY766L2cXx32eyuOs+OQRAA==
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

2026-09-17T11:40:04.797450ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028816
observed 876134b91512398552c85e415470fbd4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:04.779332ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028816/manifest.json
observed f0cc4e2b9d891e986d23f731c1571f6b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:04.761323ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028816/publication.md
observed d603af70c9a8ae12687bbbf65390fbe1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:04.743953ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028816/publication.txt
observed 017c61ff2a87de4cf184eb34d136e5af...
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.