OpenTechnical

OT-2026-000028824

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, two stage ejector, 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-2026-000028824) never changes.

Identity and time

Publication numberOT-2026-000028824 · never reused
Internal UUID01a0ae73-2a9c-7643-b3cc-350c95f61962 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028824
StatusPUBLIC

Content hashes

Canonical text0b43ab631b2a86a99ef3e2ab3f598059cd0ab70dac9264b3c1f584703ec3bcf1
Markdown13b8e205d2f71764db1e43cdacac1e6adc76e97d6a4323f013d84acd5d50c7f7
PDF
Publication pagea45cfe13ed5adbc2bb71772d8b010f789891cfbde4f611434b4be82b76945e24
Manifest4b1e254faee7c4f406ac83df00a95f7d1e229c1b23dedc8464cae2744d63eb17

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
Signatureht2D8h1WRQs8OayWECeTQ70b56lfioSQ5ztC0EetfYfuwS/KgaT8wucjwKBA9kAL9WY6LMoEYJyw/TWCOvtIAw==
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

2026-09-17T08:20:04.200109ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028824
observed a45cfe13ed5adbc2bb71772d8b010f78...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:04.181257ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028824/manifest.json
observed 4b1e254faee7c4f406ac83df00a95f7d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:04.043796ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028824/publication.md
observed 13b8e205d2f71764db1e43cdacac1e6a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:04.026557ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028824/publication.txt
observed 0b43ab631b2a86a99ef3e2ab3f598059...
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.