OpenTechnical

OT-2026-000028541

Publication integrity record

Six cup vacuum gripper, six outlet manifold, three stage ejector, 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-2026-000028541) never changes.

Identity and time

Publication numberOT-2026-000028541 · never reused
Internal UUID01a0ae72-e2f8-764f-afda-accca3389010 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028541
StatusPUBLIC

Content hashes

Canonical text35136dc093457e265918705bd53999e8d532c9e6c55c135fc7874c058d710bff
Markdownb93a055622f5b5d711176a7587552579afdca3365bc471d540c690362ac53c0f
PDF
Publication pagebeb2a8f30e53e79b7a886fed39a5bd9e5153a3213c28d472fae6a9fbce37122c
Manifest24fb1baa92962bba6f58545c7caf5f3a91e4533b18b52b6d92be10d087029456

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
SignatureM6dXW9Zo1fxUQ4xBSTrkDRaGdqF+hXULOw4HTfcfNe39B4k/3fdKjFqUu0+J16cbYzPf8bVxYPDstjVEp8rRDw==
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

2026-09-17T11:40:49.227012ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028541
observed beb2a8f30e53e79b7a886fed39a5bd9e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:49.209584ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028541/manifest.json
observed 24fb1baa92962bba6f58545c7caf5f3a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:49.190705ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028541/publication.md
observed b93a055622f5b5d711176a7587552579...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:49.169731ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028541/publication.txt
observed 35136dc093457e265918705bd53999e8...
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.