OpenTechnical

OT-2026-000091444

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, 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-2026-000091444) never changes.

Identity and time

Publication numberOT-2026-000091444 · never reused
Internal UUID01a0ae9c-f16d-775f-9b56-490a01acd097 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091444
StatusPUBLIC

Content hashes

Canonical text9a513f881409f2500d2281bdfb4fc1c6f4f99cc90e38cea77677c51937494ee3
Markdownbc58262fa98dc3fabaf15af70978dc1ef93acac7e1b2a3dc24747321ffc0270b
PDF
Publication pagee5b05b8187d6d08652f6924e8124ddf826374f9d8c9cb684cb9361b3ca5037f6
Manifest3ab0b908725790775c50f9ec428450d8ffabfa03b349aa151edafaaa79ec3998

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
SignatureB22SANQDeKSN5XnCsw6I8SgfDfKCcNuTbPbBsZ4Y5YUaWb7eFng/vJ1vNhZWTNfrNGb5ETzF3QVxBXNJj2LkBg==
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

2026-09-17T09:43:41.509207ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091444
observed e5b05b8187d6d08652f6924e8124ddf8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:41.491311ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091444/manifest.json
observed 3ab0b908725790775c50f9ec428450d8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:41.473378ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091444/publication.md
observed bc58262fa98dc3fabaf15af70978dc1e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:41.456881ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091444/publication.txt
observed 9a513f881409f2500d2281bdfb4fc1c6...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent