OpenTechnical

OT-2026-000090274

Publication integrity record

Two bellows cup vacuum gripper, two zone face, three 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-2026-000090274) never changes.

Identity and time

Publication numberOT-2026-000090274 · never reused
Internal UUID01a0ae9c-4290-7493-adab-7235f4b4879d · 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-2026-000090274
StatusPUBLIC

Content hashes

Canonical textfaa46ab225444ccf6ab848a2bee510c21d94bddbe70461920e968f25315dbba8
Markdown29c65fb039e8269862f06f08a98d2d81146762cd738a63c3ebffd57d063d0dfb
PDF
Publication pagec02500d67e4a3c8d9848b168a0c9ee0f145f12c7a067ce389d869b9d3b5dc38c
Manifest506ea3a7f4308e69a622a76eb5087c3c9aa68361b1daa9e2d82cd5ee2819ed55

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
SignaturejR95R1/1mMVKYZj3YoVIBpKuRatG0dfFSwaLFfUf3FxfE2dFTIzsDYVoAUrkdfSNOtDmEUxUtjiS40rfapW/DA==
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

2026-09-17T09:46:21.359346ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090274
observed c02500d67e4a3c8d9848b168a0c9ee0f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:21.343989ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090274/manifest.json
observed 506ea3a7f4308e69a622a76eb5087c3c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:21.320945ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090274/publication.md
observed 29c65fb039e8269862f06f08a98d2d81...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:21.302385ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090274/publication.txt
observed faa46ab225444ccf6ab848a2bee510c2...
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.