OpenTechnical

OT-2026-000020871

Publication integrity record

Foam pad vacuum gripper, three zone face, per zone isolation, two stage ejector, pulsed blow-off before set-down

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-2026-000020871) never changes.

Identity and time

Publication numberOT-2026-000020871 · never reused
Internal UUID01a0ae6f-65e3-7132-87b4-9df58d72a091 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:31.316024Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020871
StatusPUBLIC

Content hashes

Canonical text463b52cf42e2cb8fc3851c9516aa283072d239903c6f207b9f42db82fbccc6dc
Markdown535552fbb5f61c2e2b3a756e2a1fb500bf012a9b3109b82acdd9dd4992bd4191
PDF
Publication pageaa24a28b8fa1549e92b64c7599cc694e79db3d142d6ecd2f65c29b1341681cc8
Manifest63dc8c8a1e6ed0bb08c2402a3bceef71b655750c82e39f386674b873e31b335c

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
SignatureDzOQqLHnlHN/UUUtRiuTmMJXwH32sHV4pQFrlAHwkTnJ8Zz6r5VPhgLHwNPIXz+wFIi8Km2iBrNjzajxIkOhDw==
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

2026-09-17T11:55:58.549138ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020871
observed aa24a28b8fa1549e92b64c7599cc694e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:58.531311ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020871/manifest.json
observed 63dc8c8a1e6ed0bb08c2402a3bceef71...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:58.514284ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020871/publication.md
observed 535552fbb5f61c2e2b3a756e2a1fb500...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:58.495585ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020871/publication.txt
observed 463b52cf42e2cb8fc3851c9516aa2830...
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.