OpenTechnical

OT-2026-000090884

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, two stage ejector, pressure sensor per zone, 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-2026-000090884) never changes.

Identity and time

Publication numberOT-2026-000090884 · never reused
Internal UUID01a0ae9c-c011-7fae-80e7-77e456b0aca7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:03.518217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090884
StatusPUBLIC

Content hashes

Canonical text111d27c6253a3fef3c2c2880ac653064cf7d89d4c44ed17eee386fd2fc60c0b0
Markdown96f3142890016cbd31458d679773fe80da83f6f9e50fb794030ac40434b58b96
PDF
Publication page8ad9a284b79dff521e558b99b6635847dacf24b50c960d426fb14c176bd6cd74
Manifest0cbd1a50dbcac699f152b3700b360803c8ceb4586fc65af39ebaf1cfea901707

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
SignatureemQF/qfN7P5vseXlPRi9BMUaARYI5jbC0TxdvD6z7d3EyaZQTbucR0ywZh+ajSDIqEaKtKGO00Z84sbweYXRDw==
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

2026-09-17T09:44:04.980458ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090884
observed 8ad9a284b79dff521e558b99b6635847...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:04.962601ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090884/manifest.json
observed 0cbd1a50dbcac699f152b3700b360803...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:04.947179ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090884/publication.md
observed 96f3142890016cbd31458d679773fe80...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:04.930188ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090884/publication.txt
observed 111d27c6253a3fef3c2c2880ac653064...
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.