OpenTechnical

OT-2026-000090917

Publication integrity record

Two cup vacuum gripper, two zone face, common isolation valve, three 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-2026-000090917) never changes.

Identity and time

Publication numberOT-2026-000090917 · never reused
Internal UUID01a0ae9c-c011-742e-b4f0-4a1a54da542f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:03.518217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090917
StatusPUBLIC

Content hashes

Canonical text868657195d27edcd1a8064c9bc15adc9e7eaa6b678520609931e6235c325aae7
Markdown2592efcd78168f08e778f978e709268b6086553a722085647442f108a4096d92
PDF
Publication page74b9279419a2dd8f21cd376c63d9a88fd8aa84d6cc6512894da2fdbe61e8d25b
Manifest380676900bba9bf4be53a92a606ce5da3e8f54db0c29cca71906b4457654135e

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
SignaturewkS5f/rrvgM1gQCKKF+tnTGlMbkQ3K8MAO4Y+A4DrW4GXjgqppmH/eSrAOvizMSx8ZsUm/TvFCXuVwheBuP0Bg==
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

2026-09-17T09:44:07.880453ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090917
observed 74b9279419a2dd8f21cd376c63d9a88f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:07.862318ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090917/manifest.json
observed 380676900bba9bf4be53a92a606ce5da...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:07.843635ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090917/publication.md
observed 2592efcd78168f08e778f978e709268b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:07.824919ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090917/publication.txt
observed 868657195d27edcd1a8064c9bc15adc9...
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.