OpenTechnical

OT-2026-000083595

Publication integrity record

Four bellows cup vacuum gripper, four zone face, plant vacuum 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-2026-000083595) never changes.

Identity and time

Publication numberOT-2026-000083595 · never reused
Internal UUID01a0ae98-0415-7ad9-a792-33b5c1539cd9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:53.320528Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000083595
StatusPUBLIC

Content hashes

Canonical text28f0e5f535868be9fa5582d658a8061329bffb84f9f1967001ad1f76c56f465f
Markdowna1a267e46348c43be9f4599e21455c5061561c14375f3b1744119b6f8d299555
PDF
Publication page4ee500f832f3ebab15656d80de6cd2093e3071877c2785d0622372c19a77191d
Manifest5019bfc1426053ecd9647451e0eb8d094340a18ef88eaf0173c2b54fc7c777e2

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
SignatureePL8bNHTs+nBdRoiBYlpOOlVscYv2UuEOhMO55K4FLn3Dg4rX23s9f2KU5ZyPzrvlKpkuz+ZkjzsPMTo8M/wCw==
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

2026-09-17T09:57:05.319722ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083595
observed 4ee500f832f3ebab15656d80de6cd209...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:05.303668ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083595/manifest.json
observed 5019bfc1426053ecd9647451e0eb8d09...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:05.288087ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083595/publication.md
observed a1a267e46348c43be9f4599e21455c50...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:05.270591ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083595/publication.txt
observed 28f0e5f535868be9fa5582d658a80613...
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.