OpenTechnical

OT-2026-000090375

Publication integrity record

Three cup vacuum gripper, three zone face, two 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-2026-000090375) never changes.

Identity and time

Publication numberOT-2026-000090375 · never reused
Internal UUID01a0ae9c-7f2d-72db-9755-785276607225 · 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-2026-000090375
StatusPUBLIC

Content hashes

Canonical texteb566daf3c5294a5bdea9064446da0d365d4e9b1b916e2e25ab0c930b4c50517
Markdownd674213bb9868c4fb84fc3f6468c7adaa5e62be29e274480d758a8f2400b69af
PDF
Publication page44c56df7edcf72f2de9a6c83ac40d151deed61c0b8940c0fa7ee7a9d1192d51a
Manifest0b21d1d17fc9d0881e0eb9aea7b28f0031318ee7568d55ec7173edde4e30c6f7

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
SignatureM0GDBI4caJG3EzpPj/ycjEZ4dcWBu2EgIj1EatPsafcb9ErEDivtEMYKBXZwdYnblPfLAS9GtFJnqUdRl0aYDA==
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

2026-09-17T09:44:28.744958ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090375
observed 44c56df7edcf72f2de9a6c83ac40d151...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:28.726779ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090375/manifest.json
observed 0b21d1d17fc9d0881e0eb9aea7b28f00...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:28.707374ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090375/publication.md
observed d674213bb9868c4fb84fc3f6468c7ada...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:28.689204ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090375/publication.txt
observed eb566daf3c5294a5bdea9064446da0d3...
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.