OpenTechnical

OT-2026-000015475

Publication integrity record

Two cup vacuum gripper, two zone face, two outlet manifold, two stage ejector, pulsed 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-2026-000015475) never changes.

Identity and time

Publication numberOT-2026-000015475 · never reused
Internal UUID01a0ae6d-ef4a-7ea5-be3d-6024593280a2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:55.421510Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015475
StatusPUBLIC

Content hashes

Canonical text78a0f2f7ab3b8c0d52a3ffe508bbd41a292b33b9f2e51621b9f641af8afcd557
Markdown52fe0597ab7f5f88af5d8eff325881ca2a5aefe7281638fdb55f98b6f5363c38
PDF
Publication page2cf51451cef847936c2de0a3a3abeaa5a994b4db864a069a0d45645d6f612ef9
Manifesteedb499b960d0170c49559cebacecb82ba3ae132723aa258b0d82d46be901d50

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
Signaturep1iApcPAWlw83xFHXqPSjHiZFiCtBIbYdDxR2KUcKQv9QpVYGmqfG5hovc4fAaSBbt8Thqch73QraGcxG6hWDA==
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

2026-09-17T12:06:13.933045ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015475
observed 2cf51451cef847936c2de0a3a3abeaa5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:13.913854ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015475/manifest.json
observed eedb499b960d0170c49559cebacecb82...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:13.891723ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015475/publication.md
observed 52fe0597ab7f5f88af5d8eff325881ca...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:13.869773ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015475/publication.txt
observed 78a0f2f7ab3b8c0d52a3ffe508bbd41a...
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.