OpenTechnical

OT-2026-000042213

Publication integrity record

Six cup vacuum gripper, six outlet manifold, plant vacuum fed, sustained blow-off after 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-2026-000042213) never changes.

Identity and time

Publication numberOT-2026-000042213 · never reused
Internal UUID01a0ae7a-5d72-7df2-b4d5-64201149a39a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042213
StatusPUBLIC

Content hashes

Canonical text053de53784b4ebb1582d66ee972da86c2177924efc9caf326c47c91f8c00ec83
Markdown4912be4deffaa84e5cfbe428a2c41e64e6145e0310a3be6eb66a8d262afa45d8
PDF
Publication page8af1fbd277ff9e84e96ad339a52257c0580575789eb0e1d12a4085dbfb9bdcd6
Manifest0ff70c2a80738e1d3f258b86e2859a90ade7f540eea98f293648ed759f4f4c3f

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
SignaturekRT+4yiaz5lirDgDd+mzDtpaGG7irrFwTqTp4+R+LrHZB9wJLR591x8EfdrBTqF0gn0kVMEsLsX+Yj3BtlnXBw==
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

2026-09-17T11:15:53.026496ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042213
observed 8af1fbd277ff9e84e96ad339a52257c0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:53.008191ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042213/manifest.json
observed 0ff70c2a80738e1d3f258b86e2859a90...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:52.989551ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042213/publication.md
observed 4912be4deffaa84e5cfbe428a2c41e64...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:52.971987ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042213/publication.txt
observed 053de53784b4ebb1582d66ee972da86c...
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.