OpenTechnical

OT-2026-000090019

Publication integrity record

Two cup vacuum gripper, two zone face, six outlet manifold, pump fed, manifold pressure sensor, sustained blow-off before set-down

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-2026-000090019) never changes.

Identity and time

Publication numberOT-2026-000090019 · never reused
Internal UUID01a0ae9c-428e-7966-a8ed-49378900bf67 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090019
StatusPUBLIC

Content hashes

Canonical text988cef972f21b59323532fae17e383bf6471f11ed725bd5733e8a1b99a6b60a7
Markdown62faabda87476eccaba076032c5b909c2da5f425b92991537bd914d74bba3f79
PDF
Publication pagee9debbebc95808b9bf53cb9f44ba11e49180df1e40a90e2470d3768629014767
Manifest349e5596c6c77d0599eac4512838e4bde902a6bbf79d83606a70e7aea8237ed8

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
SignatureJKjVJG7S8T9TVDu1w2s10jfABL1C4SMRblbak7/4XZ+d+BXspdPv3fMjBb3bi4gDIiR/iAJppqI3/QSU4/JtCw==
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

2026-09-17T09:45:24.934510ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090019
observed e9debbebc95808b9bf53cb9f44ba11e4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:24.915506ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090019/manifest.json
observed 349e5596c6c77d0599eac4512838e4bd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:24.896558ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090019/publication.md
observed 62faabda87476eccaba076032c5b909c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:24.877335ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090019/publication.txt
observed 988cef972f21b59323532fae17e383bf...
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.