OpenTechnical

OT-2026-000061390

Publication integrity record

Foam pad vacuum gripper, common isolation valve, pump fed, vented after set-down

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-2026-000061390) never changes.

Identity and time

Publication numberOT-2026-000061390 · never reused
Internal UUID01a0ae8b-7b42-7f6f-9b26-8292f62454b4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:46:11.808334Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000061390
StatusPUBLIC

Content hashes

Canonical text35c8049a3433cd4bad07d7c69cd8ccbf849cbc348fc9427985d592613a043db5
Markdown5e652749220a7b69a470ce18ac7c74a27a39a29963563ab2ea613a30fb5cee78
PDF
Publication page75c28edd04d9b59baa221a2d541b1787e1366b52457fc152bf991696914bd23d
Manifest210f47223b7a1c9497289ab091699cfbf0e0cedea5a23622b370cef994299573

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
Signaturey1+AzO6UOoHM9EoYCJO0PUOZLCBnLQ9CX3z8EUJ0A1ifT7d47lF0W7mHFWC3Xs2fY/fV53uNscX/ubYdQq/PDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:41:15.039867ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061390
observed 75c28edd04d9b59baa221a2d541b1787...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:41:15.016703ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061390/manifest.json
observed 210f47223b7a1c9497289ab091699cfb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:41:15.000729ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061390/publication.md
observed 5e652749220a7b69a470ce18ac7c74a2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:41:14.983717ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061390/publication.txt
observed 35c8049a3433cd4bad07d7c69cd8ccbf...
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.