OpenTechnical

OT-2026-000078220

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, two stage ejector, vented after 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-2026-000078220) never changes.

Identity and time

Publication numberOT-2026-000078220 · never reused
Internal UUID01a0ae95-7c26-74b4-8b1b-00ac4a3b8f3c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:07.483031Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078220
StatusPUBLIC

Content hashes

Canonical textf9ce547fc038536bb6961e870bf21dd420e98727af8da856d12468339db4bb23
Markdown2554c518ed59f835a060f127f6ed41aa33fcc8c38a41109cf65bbe9e27aaddaf
PDF
Publication page1c1a6acf4b639ebbf7c0e69f876bfc2d6367a6a08eb2a60da9f1dc6776a2eecd
Manifest6b8cf363847575b676b832bf047c95129f63e8cb7fede5e4ed199687175c7dc4

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
SignatureK9b5T2YTOs3GQOuuGGLs4n+mraZTIOg0bT5MxdvRWTpVdKgE13oDERdc4KlNwQzkAqS8IfR5wVz2aSOmhimeCg==
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

2026-09-17T10:06:10.129871ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078220
observed 1c1a6acf4b639ebbf7c0e69f876bfc2d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:10.109994ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078220/manifest.json
observed 6b8cf363847575b676b832bf047c9512...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:10.089421ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078220/publication.md
observed 2554c518ed59f835a060f127f6ed41aa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:10.037440ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078220/publication.txt
observed f9ce547fc038536bb6961e870bf21dd4...
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.