OpenTechnical

OT-2026-000024537

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, 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-2026-000024537) never changes.

Identity and time

Publication numberOT-2026-000024537 · never reused
Internal UUID01a0ae70-e8cc-75cb-9cd1-f07f1908adec · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:17:10.360874Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000024537
StatusPUBLIC

Content hashes

Canonical text1456f908836893c3e334897d674f141a1a7668dbb67051766752c31de4e5f43f
Markdown6a47b9ba3377f90dbfa13a74ea03bbd4f951058f85b254b1838f3e6517f012ad
PDF
Publication page9b4e460922d077ea666a0ccb32a80b02de537c464038e23ad68768a4834db0e3
Manifest172bf45dd64b907fe79d508234fd9ca4243c0ed08cba78f3d969e2a548e14935

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
SignatureHx5PUli5ZBqVYOQ1XbEYdTCnCaTrnN9gkdOd55IaJna5Qx++AtOuHlRxTOU+A6dySkkD/UTDAg9sMQLMT8wrDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-25T04:41:34.994157ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000024537
observed 9b4e460922d077ea666a0ccb32a80b02...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-25T04:41:34.946058ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000024537/manifest.json
observed 172bf45dd64b907fe79d508234fd9ca4...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-25T04:41:34.885365ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000024537/publication.md
observed 6a47b9ba3377f90dbfa13a74ea03bbd4...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-25T04:41:34.834731ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000024537/publication.txt
observed 1456f908836893c3e334897d674f141a...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T11:50:33.770631ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000024537
observed 9b4e460922d077ea666a0ccb32a80b02...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:50:33.752879ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000024537/manifest.json
observed 172bf45dd64b907fe79d508234fd9ca4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:50:33.733874ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000024537/publication.md
observed 6a47b9ba3377f90dbfa13a74ea03bbd4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:50:33.711122ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000024537/publication.txt
observed 1456f908836893c3e334897d674f141a...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent