OpenTechnical

OT-2026-000031837

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, three stage ejector, pulsed blow-off after set-down

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-2026-000031837) never changes.

Identity and time

Publication numberOT-2026-000031837 · never reused
Internal UUID01a0ae74-bad1-77e3-8a32-da4cd8524d1a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:20.739935Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031837
StatusPUBLIC

Content hashes

Canonical texta84e32c2eecadbcc5874539d9349af736f0d859473a61288807e16138f76d3d6
Markdown461ec029000648ad4bb2f1f86fc72ebb0eef8de41fcc7ba41b416d480ba5f914
PDF
Publication page1e8038535b6cd6e77ba86640dacbbdf31f4559114f38ed064d90f51a9a955607
Manifest9f6ea7643d48ea51057477bd3e2cb048df99a5bced1d4f009b9318a0acf6c20b

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
Signature33cJAc5yaarl79usKtEMpbcRlUNIXXsuoEjOG11DEo1+34oKWisoaogni6P6K0EJ6ZeVrWFCW4TS9/ZZXIuXBg==
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

2026-09-17T11:35:05.105615ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031837
observed 1e8038535b6cd6e77ba86640dacbbdf3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:05.082101ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031837/manifest.json
observed 9f6ea7643d48ea51057477bd3e2cb048...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:05.062631ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031837/publication.md
observed 461ec029000648ad4bb2f1f86fc72ebb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:05.045153ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031837/publication.txt
observed a84e32c2eecadbcc5874539d9349af73...
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.