OpenTechnical

OT-2026-000090028

Publication integrity record

Three bellows cup vacuum gripper, three zone face, six outlet manifold, single stage ejector, manifold pressure sensor, sustained blow-off before set-down

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-2026-000090028) never changes.

Identity and time

Publication numberOT-2026-000090028 · never reused
Internal UUID01a0ae9c-428e-764f-a9e4-7efda93a6956 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090028
StatusPUBLIC

Content hashes

Canonical text56b9b9c5286d85951fc08bd832794e6754f56bb4c938e6fa9b34181f6ae19536
Markdown80218e5411df38cd56f9f7be4a76e508b307d480a54c19415bcd676fbcfedc22
PDF
Publication pageb13d73fd99bcaa567deb5f99b44b101949068f4c95d05f9fffca921eac4867b4
Manifest7d257f6280a2bb195028d45d81a49767e54dc3fb803cd8947b7eba4d9bc91d69

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
SignaturebhLWdUqPImBIy4ZpIs7NMuPZINsYuEHTB5WOufENLOuKidoP56X11B8PgJxqoKGQhN69w8/YVzYyp4kV60bsBw==
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

2026-09-17T09:45:25.702399ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090028
observed b13d73fd99bcaa567deb5f99b44b1019...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:25.683424ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090028/manifest.json
observed 7d257f6280a2bb195028d45d81a49767...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:25.662158ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090028/publication.md
observed 80218e5411df38cd56f9f7be4a76e508...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:25.644348ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090028/publication.txt
observed 56b9b9c5286d85951fc08bd832794e67...
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.