OpenTechnical

OT-2026-000015235

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, plant vacuum fed, 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-2026-000015235) never changes.

Identity and time

Publication numberOT-2026-000015235 · never reused
Internal UUID01a0ae6d-ef48-7158-8770-f66ff8573840 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:55.421510Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015235
StatusPUBLIC

Content hashes

Canonical texteb27f999112e330f63befe57c2ad901f18971fd778d63b9e47b979b7fe2b2bf8
Markdown474b597dae4e60fb7ff3901ddcd198fc4455c62eda504d1525755e29844a44bd
PDF
Publication page5c6b5a1d86abf539882cb8bf048949aad8a3fe621123ca32e8de6bc042196cbf
Manifest5daca0fb51a8504e5b1cf0ad5e71a9ce9b7e481d642e025290e3d164236e91a2

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
SignatureyeKGsCuQDgb4p64WGKzgqgog5dOmLtqhqYSaWdJZOHSqV50KppyAm3NmQ3ko/0LN8gVeSFt1N9iTLI/6QbBaAw==
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

2026-09-17T12:05:52.709278ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015235
observed 5c6b5a1d86abf539882cb8bf048949aa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:52.690923ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015235/manifest.json
observed 5daca0fb51a8504e5b1cf0ad5e71a9ce...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:52.674509ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015235/publication.md
observed 474b597dae4e60fb7ff3901ddcd198fc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:52.654790ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015235/publication.txt
observed eb27f999112e330f63befe57c2ad901f...
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.