OpenTechnical

OT-2026-000006043

Publication integrity record

Vacuum cup gripper, common isolation valve, pump fed, vented before set down, 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-2026-000006043) never changes.

Identity and time

Publication numberOT-2026-000006043 · never reused
Internal UUID01a0a94d-5529-767c-9dea-ee3026d637e6 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:20:12.717054Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006043
StatusPUBLIC

Content hashes

Canonical texta67ddac7eb4fc7df8b2e1c83d7f2f72d656367ca19c6a87e86bc00d9cb82c827
Markdown96074278de08adb7aa81b6a4402fda42f6f47d188964c61d744150e730f3c7e6
PDF
Publication page2cbcaa691066d850485aa01d18968807d9201be171531eb2ee1cd76dd62734db
Manifestd849cdc831c2413d65ea90a19b15703ae747b32d321c9cb452cbc163f22c2ee7

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
SignatureQA3iwComIl8I3nFVAzD2jsSCfhR+shfU4UwoBdA4nF/wbXVKm7pUi3PJm2hnPOfJSfHclXM6fLcQ6jodx3M0BQ==
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

2026-09-16T08:30:33.987104ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006043
observed 2cbcaa691066d850485aa01d18968807...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:33.975728ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006043/manifest.json
observed d849cdc831c2413d65ea90a19b15703a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:33.963456ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006043/publication.md
observed 96074278de08adb7aa81b6a4402fda42...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:33.950707ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006043/publication.txt
observed a67ddac7eb4fc7df8b2e1c83d7f2f72d...
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.