OpenTechnical

OT-2026-000085542

Publication integrity record

Four bellows cup vacuum gripper, four zone face, six outlet manifold, pump fed, sustained blow-off before 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-2026-000085542) never changes.

Identity and time

Publication numberOT-2026-000085542 · never reused
Internal UUID01a0ae99-aaac-7d86-9d67-636a576e6a44 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:01:41.564662Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000085542
StatusPUBLIC

Content hashes

Canonical text9fc4c4baa07a352eebf9bfb43e61975218e28066bd66588be4a69edfe49053d8
Markdown16da18fe5bc3dc549d1bb3b3abc5321e82c6b1e5892e2bc7490a6e6bce469121
PDF
Publication pageb3b410dfb4cdf2cc07b76b9567e3e2c238b67ba7eae2762ae6bfb718af09deb3
Manifest0ba7061ab8f2f0a1e7a851db54753f70451f2b070319d58867fcb512e9a83df2

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
SignaturedqTDyWV90RKyttBOwsG4rJr78xkcF7Ytyd2Yi2pLOYIwctWAHkEphP/u5RxdTA8K5mugiV/8mucC7lsKm8TSCg==
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

2026-09-17T09:54:21.624306ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085542
observed b3b410dfb4cdf2cc07b76b9567e3e2c2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:54:21.607221ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085542/manifest.json
observed 0ba7061ab8f2f0a1e7a851db54753f70...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:54:21.589580ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085542/publication.md
observed 16da18fe5bc3dc549d1bb3b3abc5321e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:54:21.572520ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085542/publication.txt
observed 9fc4c4baa07a352eebf9bfb43e619752...
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.