OpenTechnical

OT-2026-000090571

Publication integrity record

Four bellows cup vacuum gripper, four zone face, plant vacuum fed, 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-2026-000090571) never changes.

Identity and time

Publication numberOT-2026-000090571 · never reused
Internal UUID01a0ae9c-7f2f-7097-af9a-7a626763ca47 · 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-2026-000090571
StatusPUBLIC

Content hashes

Canonical text9737b9c5e2e5fc4258f500c5281fe1799b81533fa52f261fb56f3217b1032aa1
Markdown3de547f0697cc7080185242f08b97478a1e02098f053fed2116ba5a58032a3dc
PDF
Publication pagee96e819139a9d0b102012217f0590407ba5957f9d959d3366bea706f36fc76b0
Manifest5ec8e35200264a5b25df6d1ed648a2b8c2941c50607ae6ef51aa1cc3542f33b2

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
Signaturer6vUMKEnNlfBWvRxUgpf+gtiI7tp9Zydzsjc83VYH8S7rESSvNgh8s8yskhVBS5ZITlbPKyAPX0mCryNtd7OCw==
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

2026-09-17T09:44:44.987474ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090571
observed e96e819139a9d0b102012217f0590407...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:44.970768ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090571/manifest.json
observed 5ec8e35200264a5b25df6d1ed648a2b8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:44.954696ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090571/publication.md
observed 3de547f0697cc7080185242f08b97478...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:44.937373ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090571/publication.txt
observed 9737b9c5e2e5fc4258f500c5281fe179...
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.