OpenTechnical

OT-2026-000087635

Publication integrity record

Four bellows cup vacuum gripper, four zone face, pump fed, supply line 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-2026-000087635) never changes.

Identity and time

Publication numberOT-2026-000087635 · never reused
Internal UUID01a0ae9a-cd53-79cb-bc3a-b300d0339acc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087635
StatusPUBLIC

Content hashes

Canonical texta9479c76c6c6f2645cb01a88feeedd8d3e06b95da56ad2c8d50b114c967a36f5
Markdownc820039393f1ee8a3488bca3fecac0ae743ba2f702800162c439e98bf68f9273
PDF
Publication page4a9a40cdf5f9844165404e0cf31cc66d4b0389baaf9ac3db9e0e978eed2ab592
Manifest180e639cac78aca7e335b9543988120982ca2f5fb0136af1aecb93055605c0ed

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
Signaturejy1LZ19pnJI8I2w/waI6qk6iQkD0EjJA/TmYaE5caQek5d49SZWpz/gCtXFXv1dmHmNVIT21c+WQNhbRrD3JDA==
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

2026-09-17T09:51:04.813010ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087635
observed 4a9a40cdf5f9844165404e0cf31cc66d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:04.796214ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087635/manifest.json
observed 180e639cac78aca7e335b95439881209...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:04.781021ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087635/publication.md
observed c820039393f1ee8a3488bca3fecac0ae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:04.764813ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087635/publication.txt
observed a9479c76c6c6f2645cb01a88feeedd8d...
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.