OpenTechnical

OT-2026-000033113

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, pulsed blow-off after 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-2026-000033113) never changes.

Identity and time

Publication numberOT-2026-000033113 · never reused
Internal UUID01a0ae75-4844-7435-bf21-cacb2cbb596e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:57.065765Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000033113
StatusPUBLIC

Content hashes

Canonical text422b0d4189af6c65628b0e4d575679acc3cdadfff529bcc088fe7a13db69b885
Markdown31ea25055350d43b59a3b78485ff94c16f0c167d2d9f81232301bd1df184f294
PDF
Publication pagefc938490e809883f393c1859146aa6a2d0b83195060f808c66afff928ba8054e
Manifestef9d745df54b9531dc3947b281b7de87e927e771de75a08fd31a94bed9def72d

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
SignatureDCIs0aEELRsWALtxOzcebTnxRP6LDNAdFanCEYFcfxIUWw/qBGV835qXlNt674zjit0HIbyNZoBANsfsUPkWDw==
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

2026-09-17T11:32:46.151749ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033113
observed fc938490e809883f393c1859146aa6a2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:46.133248ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033113/manifest.json
observed ef9d745df54b9531dc3947b281b7de87...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:46.107827ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033113/publication.md
observed 31ea25055350d43b59a3b78485ff94c1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:46.090062ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033113/publication.txt
observed 422b0d4189af6c65628b0e4d575679ac...
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.