OpenTechnical

OT-2026-000077530

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, pump fed, vented 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-2026-000077530) never changes.

Identity and time

Publication numberOT-2026-000077530 · never reused
Internal UUID01a0ae94-f50a-7e02-8609-91f23b2e1442 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077530
StatusPUBLIC

Content hashes

Canonical text0142cc28859f536ca06a7c6725637fdcfb65ccc8c4f6a55e331ff9f67e7598c8
Markdownd6b63a0eca02dd1885b6dc547da35e3776fdfd089eae1695b21d013570d872ca
PDF
Publication page81faa29c181883dccf2cf226b0a485880da7da98c93b82a2672826c16ec94aec
Manifest0fb1159386bbada66eb5412899ff15c5cce3af4310424966e658570d6d155253

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
SignatureAQXIWozrRPeJSyJPh74iRT+KLRvmy3I+qMKL6/fKMfmvpRbTxxBx/vOaABHGXoo1Nh9MuspqubMsFCzFfWnLCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:09:13.329623ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077530
observed 81faa29c181883dccf2cf226b0a48588...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:13.310678ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077530/manifest.json
observed 0fb1159386bbada66eb5412899ff15c5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:13.291377ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077530/publication.md
observed d6b63a0eca02dd1885b6dc547da35e37...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:13.272294ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077530/publication.txt
observed 0142cc28859f536ca06a7c6725637fdc...
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.