OpenTechnical

OT-2026-000090675

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, two stage ejector, pressure sensor per zone, 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-2026-000090675) never changes.

Identity and time

Publication numberOT-2026-000090675 · never reused
Internal UUID01a0ae9c-7f30-7dd3-a43d-357a765c5e4a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090675
StatusPUBLIC

Content hashes

Canonical text8f8a816f439acb8a1763ea51a392de7751286a6930cc832a645011ad1493242a
Markdownf63b359705551eed93705f1adcf96a86dada43dd3acbe317535a01e9a4159890
PDF
Publication page345d9d9087e5ecfebb09f20a56cd0864688adab1604a011c75783a40c51d3113
Manifestbc030b930eab50d9a3214f93bd5c4774d3f87b517a1660ee59737f16194b752f

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
SignatureUdBU+q5knIl1vlyxOZ+x+Wh/2d2w87iv2kG/9KofdkGXEqnHa59hwFq8XCHHHG+W7HOjRFofQdN6FeUo2iJ7DQ==
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

2026-09-17T09:44:52.288436ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090675
observed 345d9d9087e5ecfebb09f20a56cd0864...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:52.271988ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090675/manifest.json
observed bc030b930eab50d9a3214f93bd5c4774...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:52.254462ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090675/publication.md
observed f63b359705551eed93705f1adcf96a86...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:52.235834ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090675/publication.txt
observed 8f8a816f439acb8a1763ea51a392de77...
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.