OpenTechnical

OT-2026-000029543

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, pump fed, pulsed 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-2026-000029543) never changes.

Identity and time

Publication numberOT-2026-000029543 · never reused
Internal UUID01a0ae73-5e21-7251-9fb7-066b9102f46a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:51.545382Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029543
StatusPUBLIC

Content hashes

Canonical textcac7302d2167c94a5a9fec583a70bee38681e65923c5a3528286fd355dc640c9
Markdowne2a46a73540896282b9e99bc433eab326050ec0aaa5a57baf826417008dcad3d
PDF
Publication page365335e8e4f84ab8f0c4bbb2fdb466d951f4cfb3365184703e9d274d0c40f031
Manifest722bc3bc0af0c17e07848f14b1352e3341c3f8d97dc99f7f0eba9f67063421dd

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
SignatureMWC7wtblLF7YLeyggIRl5kk/UO4DmKaDm5ITMqwTp0/Xsgy058Jt9o29o6RAK/7hUWr3Uj3wbbC8KlkMlicUAw==
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

2026-09-17T11:39:11.839036ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029543
observed 365335e8e4f84ab8f0c4bbb2fdb466d9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:11.819365ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029543/manifest.json
observed 722bc3bc0af0c17e07848f14b1352e33...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:11.796161ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029543/publication.md
observed e2a46a73540896282b9e99bc433eab32...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:11.779624ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029543/publication.txt
observed cac7302d2167c94a5a9fec583a70bee3...
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.