OpenTechnical

OT-2026-000049443

Publication integrity record

Two cup vacuum gripper, two zone face, three outlet manifold, plant vacuum 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-2026-000049443) never changes.

Identity and time

Publication numberOT-2026-000049443 · never reused
Internal UUID01a0ae81-8f7c-756a-bd05-da50db9bcf6f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049443
StatusPUBLIC

Content hashes

Canonical text28fbf75f93faba162182677aa387f029da5dfb989d70bb043e167e0bbc09ad62
Markdown634a0dc339245b97bd24acde44abb7aa49091271d6d640ec6eb4b837a3022b43
PDF
Publication pagee8e496898f255f793350e3e85dc2dcbca41e880b8b0a2f682b2afdea06831e9e
Manifest4893bbfd54eed85a731208061f4e5740548d8162c95a493fd5d9dccd5863491b

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
SignatureUgbUIm7MFxGT90yVpqwHb/n2oSKIBxrxH1im5uagHTjw2n+fFVD/V174ex8RKqcj1ciAphgfzTlVBWEak+6ZAQ==
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

2026-09-17T11:02:16.595480ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049443
observed e8e496898f255f793350e3e85dc2dcbc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:16.577613ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049443/manifest.json
observed 4893bbfd54eed85a731208061f4e5740...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:16.560828ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049443/publication.md
observed 634a0dc339245b97bd24acde44abb7aa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:16.542034ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049443/publication.txt
observed 28fbf75f93faba162182677aa387f029...
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.