OpenTechnical

OT-2026-000103807

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, single stage ejector, 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-2026-000103807) never changes.

Identity and time

Publication numberOT-2026-000103807 · never reused
Internal UUID01a0aea4-e463-79fb-a0e2-1be4f65f87af · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:13:57.105586Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000103807
StatusPUBLIC

Content hashes

Canonical text74f3760ab67565b6ca95d9882ac4a7c84801e1f1d6b79ccab43762518348e5a8
Markdownab4e42c50b57d367428623ba2ef394e9979a5993a185d3b7e693d5e0cb11644d
PDF
Publication page917dfd5cc2de16b71ba01d2358a369e56f1f96e551e689e5ac4b1f2f58ec586d
Manifest05e098945325e27652901d5e511d7575e56b01ba9defab6b015bd7318e2a003a

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
SignaturetGS+FCULIqW6WtwTYt5NfE00FoiALeS4OLdGqbK+PoYzSrwCBrPRC40ot1RGnlinGGI+xi2uaYp2GmxluzcKAA==
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

2026-09-17T09:22:45.772084ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103807
observed 917dfd5cc2de16b71ba01d2358a369e5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:45.756743ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103807/manifest.json
observed 05e098945325e27652901d5e511d7575...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:45.740419ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103807/publication.md
observed ab4e42c50b57d367428623ba2ef394e9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:45.724499ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103807/publication.txt
observed 74f3760ab67565b6ca95d9882ac4a7c8...
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.