OpenTechnical

OT-2026-000013709

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, 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-2026-000013709) never changes.

Identity and time

Publication numberOT-2026-000013709 · never reused
Internal UUID01a0ae6d-8de8-7b88-b35b-1dde9b162c8d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:30.489074Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013709
StatusPUBLIC

Content hashes

Canonical text3557c90076b5081d3460d9732b0f21e12b3aef6d28edb6385232a40555fe6375
Markdown2ff118099fa7cb2bf4d4ef137a425696ac1c0190f8dea2d46c85b686758b0955
PDF
Publication page2e593e5ede9daf7c7d6e59e4bae2e75f9f2ceb30dc8c79f729321fffe015cb83
Manifest4adf82c11ed585363ddbe09a5a32ba1e22b9671aa94dd09b11653e933f58bde0

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
SignaturemihkF190bAzlSyknx+uk2ySv3iqa0oPQ+aWP+k7Ge4qMmHtNQywUqZxjWqj6b+Z6IVWEQV5CE6f9XV3SKD67Bg==
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

2026-09-17T12:08:40.117462ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013709
observed 2e593e5ede9daf7c7d6e59e4bae2e75f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:40.098520ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013709/manifest.json
observed 4adf82c11ed585363ddbe09a5a32ba1e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:40.080698ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013709/publication.md
observed 2ff118099fa7cb2bf4d4ef137a425696...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:40.062864ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013709/publication.txt
observed 3557c90076b5081d3460d9732b0f21e1...
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.