OpenTechnical

OT-2026-000026652

Publication integrity record

Single bellows cup vacuum gripper, pump 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-2026-000026652) never changes.

Identity and time

Publication numberOT-2026-000026652 · never reused
Internal UUID01a0ae71-f4aa-70e1-8fbb-0f187dcee5d3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:18.960773Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000026652
StatusPUBLIC

Content hashes

Canonical textd3bf600cbfc678dbc1350aaaf2e6b77deae6b620a8751ecd5f177a61794b944c
Markdown7748b90db1958b953f8c8461c91f103b67fac63aa4c009930057e74224feab84
PDF
Publication page16fe3488ceb9e69316d4e23ae4c482e37253935151b703b259c1ea10de762b6b
Manifest13d560432e595e63a1cb8c7b00ddb7d3705d82075a199c8d606f6c448d8226d7

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
SignatureoTM0Gg916OA9BkSZv8gs8WZ5IA0NQyh4vQpoU5rmY/n6KcYL8ZfDMNu/iVg7tPRfI3cFEuzUEjnhgcgh1GvHAQ==
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

2026-09-17T11:45:43.953197ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026652
observed 16fe3488ceb9e69316d4e23ae4c482e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:45:43.932333ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026652/manifest.json
observed 13d560432e595e63a1cb8c7b00ddb7d3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:45:43.913258ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026652/publication.md
observed 7748b90db1958b953f8c8461c91f103b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:45:43.895663ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026652/publication.txt
observed d3bf600cbfc678dbc1350aaaf2e6b77d...
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.