OpenTechnical

OT-2026-000028788

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, single stage ejector, 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-2026-000028788) never changes.

Identity and time

Publication numberOT-2026-000028788 · never reused
Internal UUID01a0ae73-2252-71ca-b68e-52db991287b7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:36.158293Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028788
StatusPUBLIC

Content hashes

Canonical text205e851c7e7eb5da8054194c1b0f545aa3f803dd8344a050313ac766c0ed6e3d
Markdown93fd0a1ecfe6341858cdfe9d524482bb460379d9b8c867c1dbb02bf0760dd8e3
PDF
Publication pagec4cc4fb32cce1cd3bc4979a605c3db548f9e707b50a994199708bca5e39de21d
Manifest1e96375a392a8c6ad4fe5e986f76499157f5f653ede8bad830fdee327dbc7e90

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
SignaturexDu4yhQQ+gOK5RZncpmz7Z2tKksY5plZ29KevVrRLnPnUi9Y8E1LiH0khridrwIxSm50SLxPOCPDgrIXLxxuAg==
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

2026-09-17T11:40:02.434919ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028788
observed c4cc4fb32cce1cd3bc4979a605c3db54...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:02.416118ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028788/manifest.json
observed 1e96375a392a8c6ad4fe5e986f764991...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:02.395581ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028788/publication.md
observed 93fd0a1ecfe6341858cdfe9d524482bb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:02.376528ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028788/publication.txt
observed 205e851c7e7eb5da8054194c1b0f545a...
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.