OpenTechnical

OT-2026-000005551

Publication integrity record

Vacuum cup gripper, three zone face, four outlet manifold, pump fed, contact triggered

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-2026-000005551) never changes.

Identity and time

Publication numberOT-2026-000005551 · never reused
Internal UUID01a0a93c-e345-7fde-adf2-90f6ca9dd528 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:02:14.984901Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005551
StatusPUBLIC

Content hashes

Canonical textd995657978dd15b0a22f7527135f583df02467adcc7caeec70ae197d0d0116db
Markdown4db84d773a6ad0ab9934ae2be1b6f444d859881714d187ab3faba125eada91f9
PDF
Publication page2aeb001b73457421c832ef00e67209e24238f2e69dd00e42e02a36589ed65663
Manifestaf1d21f2862ad860e6eac5c3256d76b646b47cbe9e33868095130801751a69b2

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
SignatureBeIu3eGKnMNHbc4tAuurrNfcyok3nx0TfKQGx7LTthQJrf+mkEXHdI6GHSIcv/tu+XMYkki0dirIgcgBw0pgBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:07:02Z
batch OT-TS-2026-W38-011 · RFC 3161 token · inclusion proof
root 8f13af7374aef42943b7bbe6a279c57a...

Independent retrieval

2026-09-16T08:10:27.693149ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005551
observed 2aeb001b73457421c832ef00e67209e2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:27.678805ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005551/manifest.json
observed af1d21f2862ad860e6eac5c3256d76b6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:27.664358ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005551/publication.md
observed 4db84d773a6ad0ab9934ae2be1b6f444...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:27.647779ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005551/publication.txt
observed d995657978dd15b0a22f7527135f583d...
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.