OpenTechnical

OT-2026-000028742

Publication integrity record

Six pad foam vacuum gripper, six outlet manifold, pump fed, manifold pressure sensor, 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-2026-000028742) never changes.

Identity and time

Publication numberOT-2026-000028742 · never reused
Internal UUID01a0ae72-e2fa-7676-b0dd-184304b3ba25 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028742
StatusPUBLIC

Content hashes

Canonical textea59304b94d02b6ad816ff7639800196596bb4f01ca208e51e7d28e60ddde9ea
Markdown886c7f7430e6bd5c64b50e76703fbf8b56db1952e9948e29e78f603c8f625c6e
PDF
Publication pagecaa12a8c48797d7161fc17c1a61f9f7f591e2daa2f0d4fadfa9dd5e162fd3b1d
Manifest5541b2e49028e0456269004958d65c79214a6779c5f961de61533cdde3f819b0

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
SignaturemVXegr96lWisnA8B8gqmrnL7PuazEK5mZNAm1r/C670/6UDgNjIlrUwRY+R+C97AKhR64w7V794WDgKXYiAXCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:41:45.548633ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028742
observed caa12a8c48797d7161fc17c1a61f9f7f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:45.529812ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028742/manifest.json
observed 5541b2e49028e0456269004958d65c79...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:45.511729ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028742/publication.md
observed 886c7f7430e6bd5c64b50e76703fbf8b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:45.492671ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028742/publication.txt
observed ea59304b94d02b6ad816ff7639800196...
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.