OpenTechnical

OT-2026-000007037

Publication integrity record

Vacuum cup gripper, common isolation valve, pump fed, pressure verified, contact triggered, rubber 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-2026-000007037) never changes.

Identity and time

Publication numberOT-2026-000007037 · never reused
Internal UUID01a0a970-665e-7990-8d08-85ba7497e2fc · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:58:30.881312Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007037
StatusPUBLIC

Content hashes

Canonical text118189c1f27dc96c708b90ed746551e5d2af72353f76ab5a297dd69839294460
Markdownbbf71a5ed2c12c0a12aa729c6f6edb302e6201c61884efea2a9f51ee565746c0
PDF
Publication pageea068050e4578fda89df05da1840da58342dc6e3da038a5424ed0ec0c7cd8ad0
Manifest2a52edac25278e4d0417a828ee3630e275f0d272bbd9a07602ab7ced4015b487

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
SignatureuU3wqL04JJSm1cWRvinC/s8ns5YRhk0LlJNzW227zkaqisaB1qXtRhegROxjjLyosO5O64ItQbesCIadh/NwAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:07:03Z
batch OT-TS-2026-W38-014 · RFC 3161 token · inclusion proof
root 2354c19da800f8df297acf3cddd64d4d...

Independent retrieval

2026-09-16T09:00:09.173757ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007037
observed ea068050e4578fda89df05da1840da58...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:09.159538ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007037/manifest.json
observed 2a52edac25278e4d0417a828ee3630e2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:09.145947ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007037/publication.md
observed bbf71a5ed2c12c0a12aa729c6f6edb30...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:09.131138ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007037/publication.txt
observed 118189c1f27dc96c708b90ed746551e5...
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.