OpenTechnical

OT-2026-000084593

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, 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-2026-000084593) never changes.

Identity and time

Publication numberOT-2026-000084593 · never reused
Internal UUID01a0ae98-e25b-73fc-a0a1-574a8216c22f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:00:50.163111Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000084593
StatusPUBLIC

Content hashes

Canonical text87beedadda9ff478cafe7fb1efe3cb278fd4f96a2978bee83900de2bfcd4efa7
Markdownd695b62dd4c09ded4c224e05660f225f155a66cc4b7d30830a40dd11fbc06dc8
PDF
Publication page3325ed97a96101001ba1908d9d2faad8a3a047bbaa8ba5a519bcf38b4026ab50
Manifest9efb3757e89e454654c9dbc0912e1c5c279d3311c1c6a3b333ad42223ac4a381

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
Signatureriwc06WDmDdHbwcEzQUmgML1t+wjaV416m9GpZGIVQ6BoBjw5XD08d5Ae9yTtV/xU7jVjKyb4+Gl+cAOyRWOAg==
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

2026-09-17T09:55:29.835106ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084593
observed 3325ed97a96101001ba1908d9d2faad8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:29.815019ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084593/manifest.json
observed 9efb3757e89e454654c9dbc0912e1c5c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:29.797782ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084593/publication.md
observed d695b62dd4c09ded4c224e05660f225f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:29.780139ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084593/publication.txt
observed 87beedadda9ff478cafe7fb1efe3cb27...
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.