OpenTechnical

OT-2026-000005901

Publication integrity record

Bellows cup vacuum gripper, four zone face, ejector fed, contact triggered on the face

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-2026-000005901) never changes.

Identity and time

Publication numberOT-2026-000005901 · never reused
Internal UUID01a0a948-a01f-76ea-8f4a-98612c5815fb · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:15:04.226045Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005901
StatusPUBLIC

Content hashes

Canonical text7e19294ea4f5200bba14c32afb4377860ec28ec635fc55651e3ac8edf4c5bcb4
Markdownb907537dd8daff47cc7fbc4cad6ef128033106e53945bcf8e0dd222070ba9597
PDF
Publication page39bce877c2015ecae90f20e4b96bc85842ab11bdf89c3a7dc5cf434eac038c86
Manifest47852b4cc9c65a8ff582b57a2ed539749fd6a5401b4b371442cd8eaa82f877aa

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
Signature+RESBv9X++ud55N13ZwoU4XZ1s3EH/yfYxzZnixsV1DSSfVPZaNpwyMu+GRv+tOyNtj0V0TOEaftnsHx+fseCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:20:19.667950ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005901
observed 39bce877c2015ecae90f20e4b96bc858...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:19.649351ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005901/manifest.json
observed 47852b4cc9c65a8ff582b57a2ed53974...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:19.633663ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005901/publication.md
observed b907537dd8daff47cc7fbc4cad6ef128...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:19.535674ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005901/publication.txt
observed 7e19294ea4f5200bba14c32afb437786...
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.