OpenTechnical

OT-2026-000042187

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, two stage ejector, manifold pressure sensor, pulsed blow-off before 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-2026-000042187) never changes.

Identity and time

Publication numberOT-2026-000042187 · never reused
Internal UUID01a0ae7a-5d72-7be2-a57e-0e4a783f51dc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042187
StatusPUBLIC

Content hashes

Canonical text19d1803d3f489b64204f6972df141f5f03d08c38c45264b6a52f5d18feacf953
Markdownbb8c484b060622fd665ed6982fc20411aa0ce98b3a63bbae978a28cf0db0aa1b
PDF
Publication page3a444497142d2378d3f7c574da49129934e7648a5f18ca39395971679ee22f63
Manifestefba7cb4212853db159be7871668ac1bfc12ae36150e220f42c5aac8d613f44b

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
SignaturegRTD6e8OKtJir6hkMi6pf8gUyCv6VvHd627km0tIhFTI68ZeUMiKI/vqcRvC08EscbRv5099FprEyvGVud3BCQ==
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

2026-09-17T11:15:50.979419ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042187
observed 3a444497142d2378d3f7c574da491299...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:50.960305ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042187/manifest.json
observed efba7cb4212853db159be7871668ac1b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:50.940731ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042187/publication.md
observed bb8c484b060622fd665ed6982fc20411...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:50.919715ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042187/publication.txt
observed 19d1803d3f489b64204f6972df141f5f...
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.