OpenTechnical

OT-2026-000026725

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, manifold pressure sensor, sustained 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-2026-000026725) never changes.

Identity and time

Publication numberOT-2026-000026725 · never reused
Internal UUID01a0ae71-f4ab-7ffa-8272-25131b621312 · 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-2026-000026725
StatusPUBLIC

Content hashes

Canonical text78b4824a08292a47079e3a242993e5f0ac3b7953e252561892d61a92ac1199af
Markdown29265156326ee3e9fe9660f10f2f81cacc12ac0e2895758a0d8e09d5c136ec0b
PDF
Publication pagea8bfe6a371c4a4eabcf617eb6be1883f4c9dd2a5b811ceb9f967cb35abf0e174
Manifestd272c54250cc621890083e69e782c498bd6ab884765c59c6bf4ab2ded38f2fb1

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
SignaturedW2GpM9v5Pd4JsCYF1/dUu3C1uMINQ0d4sPFsEgViyeV2AlW0uNyhqNdKbvo9/vSZ7fneu8phUE73TqWGUuRCg==
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

2026-09-17T11:44:10.893016ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026725
observed a8bfe6a371c4a4eabcf617eb6be1883f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:10.875410ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026725/manifest.json
observed d272c54250cc621890083e69e782c498...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:10.857990ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026725/publication.md
observed 29265156326ee3e9fe9660f10f2f81ca...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:10.839843ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026725/publication.txt
observed 78b4824a08292a47079e3a242993e5f0...
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.