OpenTechnical

OT-2026-000028335

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, single 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-2026-000028335) never changes.

Identity and time

Publication numberOT-2026-000028335 · never reused
Internal UUID01a0ae72-e2f5-75d2-83af-cee0de9d74fe · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028335
StatusPUBLIC

Content hashes

Canonical textefc350a3550fe9072c5b34f2bc03a2e46e9ad0b4d86f436fe4bcbd6be12dc32e
Markdown0601fcd3362f70e087c64b9334206f394802d50abe085109ae51ca6c67625450
PDF
Publication pageb5d3e1eb535e093d311c6885487d0f9638cb6afbb99fa14ddc3f69b305833240
Manifest0560a7c30b45996cc4d4754548010cb8b7ea1c9bd291162f6ed9c008f7cc7fb4

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
SignaturewUFGlg9WrXAtnsgTM5dyHZP+x+g2gjp0znpgg+s1iG2xTEwWE+udySGpZu6qsrJJTEz7YmtkBZfCgWmHwI7sBQ==
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

2026-09-17T11:40:20.411670ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028335
observed b5d3e1eb535e093d311c6885487d0f96...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:20.393495ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028335/manifest.json
observed 0560a7c30b45996cc4d4754548010cb8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:20.370986ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028335/publication.md
observed 0601fcd3362f70e087c64b9334206f39...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:20.355123ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028335/publication.txt
observed efc350a3550fe9072c5b34f2bc03a2e4...
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.