OpenTechnical

OT-2026-000090107

Publication integrity record

Three cup vacuum gripper, three zone face, six outlet manifold, plant vacuum fed, manifold pressure sensor, 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-2026-000090107) never changes.

Identity and time

Publication numberOT-2026-000090107 · never reused
Internal UUID01a0ae9c-428e-7f51-90fa-232df8bc53b0 · 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-2026-000090107
StatusPUBLIC

Content hashes

Canonical text7f351a4e7d3e4c1968d1b35e779e335f6e6a2f887d1dc7239edee954d85191a9
Markdownb2d32f0a5a0b5cfc8938564c52b0ff103bd578baa460e61428a4d3725ca2fc6b
PDF
Publication page8bcd58e60917e3b041359652ff9b803b74c66c473412d83fdf308383826d43f3
Manifest10b45422c082a3e68a23c3c52802e56d9328113a8774641e66cf2023e43e16ee

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
SignatureVMv188b79oNuVPx4Ww4ChyzegBHsiHDufoXSkCk+kU0NM0n+q5s4BDX0iNaXzoWH8YHL7JK58fSuOWmRTYOwAA==
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

2026-09-17T09:45:06.807696ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090107
observed 8bcd58e60917e3b041359652ff9b803b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:06.788540ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090107/manifest.json
observed 10b45422c082a3e68a23c3c52802e56d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:06.770157ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090107/publication.md
observed b2d32f0a5a0b5cfc8938564c52b0ff10...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:06.752477ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090107/publication.txt
observed 7f351a4e7d3e4c1968d1b35e779e335f...
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.