OpenTechnical

OT-2026-000006042

Publication integrity record

Vacuum cup gripper, two zone face, common isolation valve, ejector fed, pressure verified, polyurethane cups

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-2026-000006042) never changes.

Identity and time

Publication numberOT-2026-000006042 · never reused
Internal UUID01a0a94d-4796-72a7-9269-ad7f7515c18d · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:20:09.241876Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006042
StatusPUBLIC

Content hashes

Canonical textb53fe71138fd423fb476760b80f5148fcbaef7ee80d18c55d3c3fb7b91b767ba
Markdown19f1a788766dfe6cc1e4e8fa2968c8b48fc889d7296deaf22bff8dfb0490e6eb
PDF
Publication pageb265e37f29159d8aaf6386b271c38016442a5a2e757b793472a39fbe43c320ca
Manifest8a34365ca0c923b3f8c0bbcc3d6138d723546a7ab8f46f6ad0bd5bb7758a3803

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
SignatureFARupRZ0j87awenN/TYBCovOpy4uY0GWBMPqMvibWk7BDBjcqNoq+Fb7gD6fgA3bjVpiEEPQdq+eT1R276ZvAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:30:34.164937ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006042
observed b265e37f29159d8aaf6386b271c38016...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:34.152171ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006042/manifest.json
observed 8a34365ca0c923b3f8c0bbcc3d6138d7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:34.140045ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006042/publication.md
observed 19f1a788766dfe6cc1e4e8fa2968c8b4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:34.125287ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006042/publication.txt
observed b53fe71138fd423fb476760b80f5148f...
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.