OpenTechnical

OT-2026-000070744

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, vented 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-2026-000070744) never changes.

Identity and time

Publication numberOT-2026-000070744 · never reused
Internal UUID01a0ae91-8c2c-7061-99d4-3ec9d036af59 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:52:49.344646Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000070744
StatusPUBLIC

Content hashes

Canonical text8302e96b35897fed563f36107162fd3ecb67b798f002dc8e0ab35610b31d86af
Markdown7e3d6d71dd31d2c913b826cc83a132a1174d92ae2d3bf2f4ad144e0cc2df292c
PDF
Publication pagea4d1c06e96b7dea70dd7ca242d0b17fb5980a6075ec872f69f4c20763e6c14c3
Manifest859b12ab4c170a5bdff6227106bdd38c93be9deb0dfebb79ff7afe30effc6a87

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
Signaturez5Aafb50vy3ucwVKjxcv5UO10CAuT2qp4yOe25vJrxN3FAuTS9avniNUqCcNwQlgwYr2X4jNBCaLBrTZsXe0Dg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:25:26.362018ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070744
observed a4d1c06e96b7dea70dd7ca242d0b17fb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:26.342133ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070744/manifest.json
observed 859b12ab4c170a5bdff6227106bdd38c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:26.325108ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070744/publication.md
observed 7e3d6d71dd31d2c913b826cc83a132a1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:26.306514ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070744/publication.txt
observed 8302e96b35897fed563f36107162fd3e...
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.