OpenTechnical

OT-2026-000019839

Publication integrity record

Three bellows cup vacuum gripper, three zone face, pump fed, 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-2026-000019839) never changes.

Identity and time

Publication numberOT-2026-000019839 · never reused
Internal UUID01a0ae6f-1fb5-7b45-aed6-2359c8e884be · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:13.354643Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019839
StatusPUBLIC

Content hashes

Canonical textf7418d1c15e6d833a8626d10e725f1176b2ded30233f4092f322d3de9eae8a18
Markdownc4a980d5b47f6dc06d25bc352c0087de03fb810eba6fca703bacf33f3f5be261
PDF
Publication pagecc827cc880a15a101ebe2736544bbf7f56b3ba9d8b5e3830ef474ab0c8bea384
Manifestd73af039e59073c516df57d08a6fdbbe38ce08efedddcd535a36096c7ffc3a6b

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
SignaturevMZA+CSh3fk6EBN+8POpvhC2DvVD/mVVIrdfUHPWrD0H6E2CX70496vcpB7Tb542cRtBHOKZEOOHFK1ITrlIBw==
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

2026-09-17T11:58:02.033116ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019839
observed cc827cc880a15a101ebe2736544bbf7f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:02.017192ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019839/manifest.json
observed d73af039e59073c516df57d08a6fdbbe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:01.997911ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019839/publication.md
observed c4a980d5b47f6dc06d25bc352c0087de...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:01.980394ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019839/publication.txt
observed f7418d1c15e6d833a8626d10e725f117...
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.