OpenTechnical

OT-2026-000090225

Publication integrity record

Foam pad vacuum gripper, four zone face, six outlet manifold, pump fed, manifold pressure sensor, 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-2026-000090225) never changes.

Identity and time

Publication numberOT-2026-000090225 · never reused
Internal UUID01a0ae9c-428f-7afa-8148-34553033a235 · 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-2026-000090225
StatusPUBLIC

Content hashes

Canonical textbbedf8c436afaec8430b1d79bbf0b2437754926e8c0e1d548314184d19514398
Markdown0b0629c6e1ff2cdbf7742f144539d3a7cf8c635a5752d9bb1b08b499bbffef84
PDF
Publication page54d417eadc6bc4c372bb77e5841786e9c1fad797765664edea5798ef277c2711
Manifest3310addcbf784707ca393e4bcd3fa809e9297d14a0f27a030d77544967aa4535

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
SignaturezjOApz2qsMrYxg7dm0h0+SOzxXTPk3Pfhk/J9W/uvWZ23HbhvMgzaJv7HwPXfMpDQYMYrvAK0IkcABdZ7cQJAA==
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

2026-09-17T09:46:18.305476ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090225
observed 54d417eadc6bc4c372bb77e5841786e9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:18.286201ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090225/manifest.json
observed 3310addcbf784707ca393e4bcd3fa809...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:18.266949ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090225/publication.md
observed 0b0629c6e1ff2cdbf7742f144539d3a7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:18.248697ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090225/publication.txt
observed bbedf8c436afaec8430b1d79bbf0b243...
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.