OpenTechnical

OT-2026-000013407

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, two stage ejector, pulsed 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-2026-000013407) never changes.

Identity and time

Publication numberOT-2026-000013407 · never reused
Internal UUID01a0ae6d-6fca-7b55-acc0-2342c43be32c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013407
StatusPUBLIC

Content hashes

Canonical text55e52203dbeb01bf7bde209b50dbe5f2b48916429a027a7b75a33dfa46fda344
Markdown1df97cea02d16c6c0af694d5b69a295c546e5ae0ec83f2d01c92a31c07a62fe2
PDF
Publication page8d136ac3b0a0615b8dbe71bc1eb9907f6a8eea80f786ff1ad38b6548942f1401
Manifestcfb09267019b7e1c3e7ab4319939f5fdbb3daa08da06e45c54e5c4c8b6273c48

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
SignatureJCs2cjHzpyW+s5ja8Uj/WhqvKO7JLn6TH8HIrFyeaTVEozj+595qvmZY1/lO1CIaH3kyq+btqJYiPiIEOa/mCA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:09:53.055593ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013407
observed 8d136ac3b0a0615b8dbe71bc1eb9907f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:53.037473ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013407/manifest.json
observed cfb09267019b7e1c3e7ab4319939f5fd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:53.018726ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013407/publication.md
observed 1df97cea02d16c6c0af694d5b69a295c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:52.998319ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013407/publication.txt
observed 55e52203dbeb01bf7bde209b50dbe5f2...
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.