OpenTechnical

OT-2026-000069681

Publication integrity record

Three cup vacuum gripper, three zone face, six outlet manifold, pump fed, pressure sensor per zone, 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-2026-000069681) never changes.

Identity and time

Publication numberOT-2026-000069681 · never reused
Internal UUID01a0ae90-b52c-7241-8f77-9868e9c5db67 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:51:54.310022Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000069681
StatusPUBLIC

Content hashes

Canonical textf22ab6680bb0e3587a01044c17442aed771c674a6ffb5a4d1e1e542f7078603f
Markdownce73bf7d518ef9e51c776ef233f42d5e8a9ef480507afe669abb15c0602ce537
PDF
Publication pagef8f86e77af48fedf61d04e7e43c33d833edb80095638815dd7cebf057aa45be4
Manifest7e60fc1762b24c3bcdb866097fbac4fe22ececf37a591bba381c10fea1588ad8

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
Signature3WHEJ1g8uuJixzfsDwZAg//yl2gNGyyUZoWiv9ea9DJvdt05m3pbBoeBcL1foy9507lG6QlJJGcTGFTP00ZRBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:28:21.349337ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069681
observed f8f86e77af48fedf61d04e7e43c33d83...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:28:21.331005ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069681/manifest.json
observed 7e60fc1762b24c3bcdb866097fbac4fe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:28:21.311470ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069681/publication.md
observed ce73bf7d518ef9e51c776ef233f42d5e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:28:21.291657ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069681/publication.txt
observed f22ab6680bb0e3587a01044c17442aed...
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.