OpenTechnical

OT-2026-000042885

Publication integrity record

Single cup vacuum gripper, common isolation valve, three stage ejector, sustained blow-off after 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-2026-000042885) never changes.

Identity and time

Publication numberOT-2026-000042885 · never reused
Internal UUID01a0ae7a-c0d1-7c10-9a43-e4370787e068 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:55.489038Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042885
StatusPUBLIC

Content hashes

Canonical text81a196ec26a95693ad1c9c3d2b5ee9c91483b2564d9739ad1c2981f6ebef2e84
Markdown09929f500926e6224e462d9999b4dad7112c23df2f432d9a8a4c94e85788585f
PDF
Publication page36651de5e3e1e247c83a0faad23db50ec61bca5aabae331c2e17346a63a56118
Manifest76bdf36d3ac307ca67712424a668dc3d8ae49bc65bb9c07d164f4293f866e64a

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
SignaturejqNXiIxVjF9YkJaGqIeb2UqzKZ8AUhiZrCIAypqXsMdQvUjVxBabuLC5Bn/N4Zf9rBFb6DM7LdMmpt21fMZqCQ==
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

2026-09-17T11:15:23.188717ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042885
observed 36651de5e3e1e247c83a0faad23db50e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:23.168188ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042885/manifest.json
observed 76bdf36d3ac307ca67712424a668dc3d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:23.147200ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042885/publication.md
observed 09929f500926e6224e462d9999b4dad7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:23.123803ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042885/publication.txt
observed 81a196ec26a95693ad1c9c3d2b5ee9c9...
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.