OpenTechnical

OT-2026-000023933

Publication integrity record

Single cup vacuum gripper, common isolation valve, plant vacuum 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-2026-000023933) never changes.

Identity and time

Publication numberOT-2026-000023933 · never reused
Internal UUID01a0ae70-aed6-7952-8a0a-87df2e009381 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:55.528856Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000023933
StatusPUBLIC

Content hashes

Canonical text9ad2cf67c4d1584668bdf779d45ed309ba9f7a4f24cb29138ad0a4498a88f74d
Markdownd83682483af99434db19ab4b95d147ac499d97e5b1d2a68360ec21b6b97a28cc
PDF
Publication page6c2ffe902e6bfb3ac248aebffbb4e1615b099f5f9d05d4717094919fbe61d87b
Manifest1b75757330f2a09b6d6d0af896eb1ce97da3957ea7dfd753027a6623fc943845

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
SignatureF/YZ7C5IM0Koe+j9l3OsD9UHvCkkdNBlQPUatBxWwtNruLqK8jvkIlDYMe/DGHwDjf8DxdAKP3eoTnRgJh9xBw==
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

2026-09-17T11:50:33.554613ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023933
observed 6c2ffe902e6bfb3ac248aebffbb4e161...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:50:33.538090ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023933/manifest.json
observed 1b75757330f2a09b6d6d0af896eb1ce9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:50:33.520698ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023933/publication.md
observed d83682483af99434db19ab4b95d147ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:50:33.503921ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023933/publication.txt
observed 9ad2cf67c4d1584668bdf779d45ed309...
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.