OpenTechnical

OT-2026-000091130

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, three stage ejector, pressure sensor per zone, 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-2026-000091130) never changes.

Identity and time

Publication numberOT-2026-000091130 · never reused
Internal UUID01a0ae9c-f16b-769d-a22e-8caee70f3ef4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091130
StatusPUBLIC

Content hashes

Canonical text67ba5206459655ba024a1b4531d52c6b80fdcd83229054a41605cb25a266596d
Markdown24c75ad9bb934d41ce6070d0811fc313999866d3a3398f1963d154ae2a31225b
PDF
Publication page6264a45243a9fca8ed4c13cf092cc27c355f2308236865913c9b7f8f5644ddaf
Manifestbc246786d12474a526da2e26980374bbc89ba069ebf13303c3c6d0e6c7c6bab1

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
SignatureAk9wrOOeQhffyKKGO1EVPMilh4jTVnOX7Z5L6MD+Wb6DL/UCXdBZ3z+aZ21ISDM33eL/KHUKtR368fnRRfyvCw==
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

2026-09-17T09:43:17.220624ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091130
observed 6264a45243a9fca8ed4c13cf092cc27c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:17.204026ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091130/manifest.json
observed bc246786d12474a526da2e26980374bb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:17.185310ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091130/publication.md
observed 24c75ad9bb934d41ce6070d0811fc313...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:17.168196ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091130/publication.txt
observed 67ba5206459655ba024a1b4531d52c6b...
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.