OpenTechnical

OT-2026-000090653

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, single stage ejector, 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-2026-000090653) never changes.

Identity and time

Publication numberOT-2026-000090653 · never reused
Internal UUID01a0ae9c-7f30-762e-9082-727fd2f0962c · 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-2026-000090653
StatusPUBLIC

Content hashes

Canonical text2d2911214721461980bf5ce4c31f6fe97455a6663f95497a865cfb7375cee0bc
Markdown8d9873844e77904f8e7e6e301b79b377f2e88bb8123f321fbcb1384e694acd75
PDF
Publication pagead107fa00255954161c5e8e1244e1896f8813e88fb2475e86b6adde6b4ddf093
Manifest2c907ea4a33fe790833a5a0441d64c0e04db8bf56aaa13bd2529da17e12313ff

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
SignatureHyT1OIU613jB0cz1xPQ2AMdnWH9GKmC/mbpCGXL+VxEd10mnj3+vRNpVcdiy984yu1ohTCF1p2F2qJi4fi8PCQ==
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

2026-09-17T09:44:50.561125ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090653
observed ad107fa00255954161c5e8e1244e1896...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:50.541955ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090653/manifest.json
observed 2c907ea4a33fe790833a5a0441d64c0e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:50.519269ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090653/publication.md
observed 8d9873844e77904f8e7e6e301b79b377...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:50.501407ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090653/publication.txt
observed 2d2911214721461980bf5ce4c31f6fe9...
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.