OpenTechnical

OT-2026-000080021

Publication integrity record

Two bellows cup vacuum gripper, two zone face, per zone isolation, pump fed, 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-2026-000080021) never changes.

Identity and time

Publication numberOT-2026-000080021 · never reused
Internal UUID01a0ae96-4377-7a24-b7dc-0890c26bdeec · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:58.480954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000080021
StatusPUBLIC

Content hashes

Canonical text9afa1eaf2eea789dae3c666d0cb7db256e42e796f550d014f77422e35aefbe2d
Markdown215eb44d50c4d9b504e184488d30e213b3450cdd6a85b0a484721fc5323a66f2
PDF
Publication pagebf6aa40267db5b4f1715219fda29ca15526ae16b0855044b02e4f4f24ff864a8
Manifestf02bf3cd3ae8e3dbb21fbbeb01f0a67eade3c3c64e3dc51f4ba6d3a147628b44

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
SignatureiFOTz+PJ5CLkEbLLy5QILKxVQlSOdww4RZ2uE1C/SZk45CL+qot2+IMUoX3EisfZ34uxiJcscbeYdembYB/BBg==
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

2026-09-17T10:03:56.517649ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080021
observed bf6aa40267db5b4f1715219fda29ca15...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:56.501163ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080021/manifest.json
observed f02bf3cd3ae8e3dbb21fbbeb01f0a67e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:56.482332ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080021/publication.md
observed 215eb44d50c4d9b504e184488d30e213...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:56.463659ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080021/publication.txt
observed 9afa1eaf2eea789dae3c666d0cb7db25...
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.