OpenTechnical

OT-2026-000047447

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, pump fed, pressure sensor per zone, 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-2026-000047447) never changes.

Identity and time

Publication numberOT-2026-000047447 · never reused
Internal UUID01a0ae7f-3e58-72a9-9366-1793415ebfb0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:32:49.774666Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000047447
StatusPUBLIC

Content hashes

Canonical textd3289415d23cd91275d1e108a5d356506c6e594612b0249c5927c18fa2d26a17
Markdown39237e6c72b05dfa4fc66263ca76eece72aecd6d8e5890ad3a78c0332b1c8c47
PDF
Publication paged0f4be326b4ff3424d57074cf33b0bce852a9aeba1680058c8e0d48bfe2c1054
Manifest4b80d59f5ef3c266e233a2677c9d22db589f2d99091a4c970c9c243a5a02e39e

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
SignatureRmhXWHNi6P44CIuTCSLEdsPaxH3QbtvbzmuwsMwDRTy+FRZay83nx+r3ZQoB4blO/EDNRb6prQv9hfWF+JusAQ==
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

2026-09-17T11:06:28.555851ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047447
observed d0f4be326b4ff3424d57074cf33b0bce...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:28.538114ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047447/manifest.json
observed 4b80d59f5ef3c266e233a2677c9d22db...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:28.520400ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047447/publication.md
observed 39237e6c72b05dfa4fc66263ca76eece...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:28.502284ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047447/publication.txt
observed d3289415d23cd91275d1e108a5d35650...
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.