OpenTechnical

OT-2026-000104307

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, pump fed, pulsed blow-off after 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-2026-000104307) never changes.

Identity and time

Publication numberOT-2026-000104307 · never reused
Internal UUID01a0aea5-3420-7158-8339-1c13c519dc0a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:14:17.519068Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000104307
StatusPUBLIC

Content hashes

Canonical textf07bd530b314715b2becd8195c63dad568e3c8fe8cd95b1b30e27aae9de63bca
Markdown18be47ed5bf09aeb4ab1b392e1648cbc83e9504a5d21a5157a34bb37a5efc25a
PDF
Publication page0a488f49ce360fec288a7c53b0e35ef49e4eb05b5aa296cd506b567a3c6b2dec
Manifestbb60e4c847f06d36dfe250b3a1a1cd1e8889a3c3117c60a13d7cf55b08b3e4cb

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
SignatureCbjrp2zqZPWwS+2ayEphR5AwedEUbcsBLTdtdAywovSe8IhNslmbQRVQPS5WMzwI0wpT9Gu/JaBqPeRlqWhNAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:21:33.259073ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104307
observed 0a488f49ce360fec288a7c53b0e35ef4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:33.242633ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104307/manifest.json
observed bb60e4c847f06d36dfe250b3a1a1cd1e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:33.226053ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104307/publication.md
observed 18be47ed5bf09aeb4ab1b392e1648cbc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:33.208743ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104307/publication.txt
observed f07bd530b314715b2becd8195c63dad5...
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.