OpenTechnical

OT-2026-000075845

Publication integrity record

Three cup vacuum gripper, three zone face, single stage ejector, pressure sensor per zone, 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-2026-000075845) never changes.

Identity and time

Publication numberOT-2026-000075845 · never reused
Internal UUID01a0ae94-29fe-7a17-9a1a-dde594707c0a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075845
StatusPUBLIC

Content hashes

Canonical textf2e1e7bb738502ce3125c60eaf957d2e158f36bdf524c81063c4df60c27166e8
Markdownfe88c378822e606ea1ce45e381cc440f91c6a67370543caffe8442c67d6dfbcc
PDF
Publication page6449363c12b5dcce4172f2ace7c961ab7800207cf0fe5ec599ca6549f63303fc
Manifest4d97b07eff5ec52f7ed17813345e97c42a8d35a465924f3edc5534f5c86d4577

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
SignatureKMvptANWgUNEm91yeDbbEAOodEp9C0LsjmVJOLo2OVJVtLK97NUWo3a13DpmZHlkMKgdcNEhO+MLwbOwt+uJAQ==
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

2026-09-17T10:14:31.981914ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075845
observed 6449363c12b5dcce4172f2ace7c961ab...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:31.963965ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075845/manifest.json
observed 4d97b07eff5ec52f7ed17813345e97c4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:31.945580ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075845/publication.md
observed fe88c378822e606ea1ce45e381cc440f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:31.803521ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075845/publication.txt
observed f2e1e7bb738502ce3125c60eaf957d2e...
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.