OpenTechnical

OT-2026-000090429

Publication integrity record

Foam pad vacuum gripper, three zone face, pump fed, pressure sensor per zone, 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-2026-000090429) never changes.

Identity and time

Publication numberOT-2026-000090429 · never reused
Internal UUID01a0ae9c-7f2e-79f5-9d51-34e3beb152b9 · 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-2026-000090429
StatusPUBLIC

Content hashes

Canonical textd331b4d179fbc8136974fcdd071af6e1d1f875e9ea11020f177039a29dae3809
Markdown873a9a549a78add2ddf55045966616dcb62a2cd6d8b15c4cb1d4fe563d6bde4e
PDF
Publication page79259936de27dc221d15e59b996c5826284145332ca433eb7a721dd0f2156238
Manifest5d16369656ab1130448d53e7b400d33f850b9f0067791678b2db52b0281fb586

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
SignatureFpZpJVMotnUM+AA9gN1cJskW7REIdau/R20YkeFFOS8C8olwmEYfVl9UfYfK20spFQsrZiLAZZvloYGCRtxuBw==
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

2026-09-17T09:44:32.831560ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090429
observed 79259936de27dc221d15e59b996c5826...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:32.812749ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090429/manifest.json
observed 5d16369656ab1130448d53e7b400d33f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:32.792549ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090429/publication.md
observed 873a9a549a78add2ddf55045966616dc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:32.772842ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090429/publication.txt
observed d331b4d179fbc8136974fcdd071af6e1...
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.