OpenTechnical

OT-2026-000090545

Publication integrity record

Four cup vacuum gripper, four zone face, two stage ejector, pressure sensor per zone, 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-2026-000090545) never changes.

Identity and time

Publication numberOT-2026-000090545 · never reused
Internal UUID01a0ae9c-7f2f-79d0-9a1a-b5e617b00d34 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090545
StatusPUBLIC

Content hashes

Canonical text459552939e67af3d4cd0257bd3f6e1ec6198aef815c12dc467b525eaf32ee243
Markdown1ebe401394c6dadcb6ab03a6efaa89a99005f43cac7d65aceec01240146fa069
PDF
Publication pagea6a713b26f2a87c2dc0be164f5940675f5efbd2277b9e38cb90f4124e882e85c
Manifest0abab2b2d7d88c212f61105ab81cffb15867ff90c4dae17d7a855fad37e753f9

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
SignatureuPorUDdAH4CVoyYw/EtQmC+hvPiNcYjgXiUL6ULBC1JUwuDANzTYLBGbYQAY9gJNAh4E+083RInxDhcuywWqCA==
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

2026-09-17T09:44:43.029449ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090545
observed a6a713b26f2a87c2dc0be164f5940675...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:43.009703ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090545/manifest.json
observed 0abab2b2d7d88c212f61105ab81cffb1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:42.993369ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090545/publication.md
observed 1ebe401394c6dadcb6ab03a6efaa89a9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:42.975401ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090545/publication.txt
observed 459552939e67af3d4cd0257bd3f6e1ec...
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.