OpenTechnical

OT-2026-000043664

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, pump fed, pulsed blow-off after 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-2026-000043664) never changes.

Identity and time

Publication numberOT-2026-000043664 · never reused
Internal UUID01a0ae7b-92d0-758d-aea0-4b7405d03c1a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:49.254972Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043664
StatusPUBLIC

Content hashes

Canonical text2a587c63725b22a2213589be952f3b62dd50d1a84bde327f76c50b8aca86a7e0
Markdown5e010fded4af4a155cc748a2409fdb4a95189df2a411a4edf025eca6e4f853f4
PDF
Publication pagee5897837b05833fc30660b05e2986a79582ae82fe148f467a9ac72bad36731c9
Manifest4ac2d9ef47bd9f2ddb3212a4617ddbbf2533820c481e72d663a4afb8e5ab1136

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
SignatureCrra2EjUY0ItyuPBlxdSSAI6nUYjff/6e4IpcwqPzZrCpki6B20md/gLLn1xPdGPQZafQc03qz/W1pJKLAoSAg==
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

2026-09-17T11:13:08.984178ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043664
observed e5897837b05833fc30660b05e2986a79...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:08.962927ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043664/manifest.json
observed 4ac2d9ef47bd9f2ddb3212a4617ddbbf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:08.940837ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043664/publication.md
observed 5e010fded4af4a155cc748a2409fdb4a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:08.921659ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043664/publication.txt
observed 2a587c63725b22a2213589be952f3b62...
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.