OpenTechnical

OT-2026-000028383

Publication integrity record

Foam pad vacuum gripper, three zone face, per zone isolation, two 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-2026-000028383) never changes.

Identity and time

Publication numberOT-2026-000028383 · never reused
Internal UUID01a0ae72-e2f5-7a2a-a44c-a84db334e824 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028383
StatusPUBLIC

Content hashes

Canonical text89378c9cd0df911ea8c9f0c6792832052501a56d45150778fa802cb733ff79b2
Markdown27b3fbe74092937cf680e6d342aadbb84b832c6915e3b6d023a55f5fd1b51a87
PDF
Publication page8b8f976e2ad0f0eeaedb8ad66233193d4ff0f55ae19424fa1f689f1843a5ef73
Manifest1d9cf4851c6b6ef78beae265fcf515e635ac13a8a4e62839ea5027b1bcf4a266

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
SignaturedDKxmhBrGNCuF63o5K8MK0sJ2RQEicix5+lc4r9YZ74Eao8xekvwHZ1NNrwDVOqhyf50Wifdi5o9imDjQZvRBA==
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

2026-09-17T11:40:23.944155ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028383
observed 8b8f976e2ad0f0eeaedb8ad66233193d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:23.922408ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028383/manifest.json
observed 1d9cf4851c6b6ef78beae265fcf515e6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:23.906297ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028383/publication.md
observed 27b3fbe74092937cf680e6d342aadbb8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:23.889443ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028383/publication.txt
observed 89378c9cd0df911ea8c9f0c679283205...
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.