OpenTechnical

OT-2026-000042852

Publication integrity record

Single bellows cup vacuum gripper, three stage ejector, pulsed 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-2026-000042852) never changes.

Identity and time

Publication numberOT-2026-000042852 · never reused
Internal UUID01a0ae7a-c0d0-747f-836b-1099912f5473 · 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-2026-000042852
StatusPUBLIC

Content hashes

Canonical text447d2dfc9754b65c1907b9c877c8d59164e69ae168d36dfacb882f938b7d9c1c
Markdownca123f6f96070588da625c22ca204a33e532cb9d41ae2c1c80a63ea98ef8b7ad
PDF
Publication page936da04cff3e1a5a033a2939dae44c509516225dbf2623151cb071d073446461
Manifestcd10e8625f1cbe62e95dd7b94bbe7cc9bb90460aa1ce56c072eec7fb006973b9

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
Signature21BVR/dWG5Gp5dNz3NbsZ6Se4XUNfVey9nyGJGrGxcSWqkZwGciiWriuKSsAiOrE9QJvXF+r87MFO2Eu41EuBg==
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

2026-09-17T11:15:20.535859ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042852
observed 936da04cff3e1a5a033a2939dae44c50...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:20.516763ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042852/manifest.json
observed cd10e8625f1cbe62e95dd7b94bbe7cc9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:20.497148ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042852/publication.md
observed ca123f6f96070588da625c22ca204a33...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:20.480428ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042852/publication.txt
observed 447d2dfc9754b65c1907b9c877c8d591...
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.