OpenTechnical

OT-2026-000028578

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, three stage ejector, manifold pressure sensor, sustained 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-2026-000028578) never changes.

Identity and time

Publication numberOT-2026-000028578 · never reused
Internal UUID01a0ae72-e2f8-7610-a3d1-38db5e735cc4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028578
StatusPUBLIC

Content hashes

Canonical text6e0d77bc5a00510d7ab6d95abd37852d44a4256108b5384bb4de00b11cbce304
Markdown36e7cadb05d9a5829ee3bb8e39fb77d7761752e9c14ae9b413d4387f9c895b20
PDF
Publication page47309ae493626b85ad7e66e00a4adbfeea8d1a37fcbf8103add5e295af12642c
Manifest51e4d3739f89796c2946d0403bc9521aaa1c7541873dae2d3d67bfb117231afe

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
SignatureiWOYIXriZ0zA6WOv3TaWCnI9KvBWFi1rQvBrQDzvHJw6S3L9wt1A0NFIVyko3OSXVBydieKnyEyznXGxn5OzCQ==
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

2026-09-17T11:40:52.121892ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028578
observed 47309ae493626b85ad7e66e00a4adbfe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:52.095798ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028578/manifest.json
observed 51e4d3739f89796c2946d0403bc9521a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:52.079963ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028578/publication.md
observed 36e7cadb05d9a5829ee3bb8e39fb77d7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:52.062599ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028578/publication.txt
observed 6e0d77bc5a00510d7ab6d95abd37852d...
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.