OpenTechnical

OT-2026-000056397

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, supply line pressure sensor, vented 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-2026-000056397) never changes.

Identity and time

Publication numberOT-2026-000056397 · never reused
Internal UUID01a0ae87-4bd2-7827-9995-5a1ed1d8bbe6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:37.517586Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000056397
StatusPUBLIC

Content hashes

Canonical text84b921285d3bb1fc1d48e551516b52f55ea453779d4c809ce2145b4433333102
Markdownad6353e77ebf10d080ccfb08a9b298746c612291287b3e1addd10a04dd67e5d5
PDF
Publication page5cfc10e3e1b4afde3edde99eb1db98e11e1516822cc1a8fe3b99c32672afe212
Manifestab84011be722921ec5806bcb236ac70da3714a0b8d0b8d531dc777e7a14fc5b9

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
SignaturetcMzJoPMIn45Q0QOkXEwYbbcvLKPS1jOYm7QqAu6tvW/1OxrlHBGKzbkRiYSBtJovTjVwpDKKQL0ps532R4iDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:50:55.515509ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056397
observed 5cfc10e3e1b4afde3edde99eb1db98e1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:55.498340ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056397/manifest.json
observed ab84011be722921ec5806bcb236ac70d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:55.480799ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056397/publication.md
observed ad6353e77ebf10d080ccfb08a9b29874...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:55.463515ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056397/publication.txt
observed 84b921285d3bb1fc1d48e551516b52f5...
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.