OpenTechnical

OT-2026-000102303

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, plant vacuum fed, pulsed blow-off 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-2026-000102303) never changes.

Identity and time

Publication numberOT-2026-000102303 · never reused
Internal UUID01a0aea4-50f3-71ca-9980-0df8b46ee6bf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:13:19.361569Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000102303
StatusPUBLIC

Content hashes

Canonical text99f1be5d97dd862c889ed9f87dc60251a5f73a99cfd549d20370af5da1add461
Markdown5e4db37af68a8d6d28a191d8ac86a35c1a08ee223e402f80ae02563a28a1a34f
PDF
Publication page02af129a77d0b95b7cde541e1f640664d726b120754bec2dbccb553bb0025a76
Manifestdf3f3cfa520ae4d367c5736e45668aa1c7b4be53f538a8660c99f6c18f086349

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
Signature20evF8Ygb1gl6KSrKs6j2f4IV+xG1M76SzdINvRTjOpaqYyc512umXu0KS+gHfGQsS6gxazOZ7mwvKuNCnBBAw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:25:29.879353ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102303
observed 02af129a77d0b95b7cde541e1f640664...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:25:29.860977ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102303/manifest.json
observed df3f3cfa520ae4d367c5736e45668aa1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:25:29.839802ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102303/publication.md
observed 5e4db37af68a8d6d28a191d8ac86a35c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:25:29.805489ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102303/publication.txt
observed 99f1be5d97dd862c889ed9f87dc60251...
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.