OpenTechnical

OT-2026-000039507

Publication integrity record

Foam pad vacuum gripper, three zone face, four outlet manifold, pump fed, supply line pressure sensor, pulsed 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-2026-000039507) never changes.

Identity and time

Publication numberOT-2026-000039507 · never reused
Internal UUID01a0ae78-d8d2-7e98-8881-d5084469faec · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:25:50.683051Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000039507
StatusPUBLIC

Content hashes

Canonical textb78ac151637a746d311241fa789059dfec91fe945c1c9aff2c3dbaf2dcc432d7
Markdown3326b726e7b4ca820f09993f30c88ebca12d9680cf1354142c599a3ceee0e770
PDF
Publication page1451abef6b9c2459c26804ad11e1a94b4bc810dbe577d8ed3ed1c8de49ce1631
Manifestb5f880378d52e33636a642dba7f87ef27074c11e472e4d51cc02092c8879b14b

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
SignatureXOGmGNo+tcad0Q1ca0j808p5Ev/vncujGLU5nSPaqDnQXAJRvQDS1XVoMDPQMWJ7QI5bGBMHXDzgsGyY2+6eBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-10-02T12:41:50.043488ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000039507
observed 1451abef6b9c2459c26804ad11e1a94b...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-02T12:41:49.946386ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000039507/manifest.json
observed b5f880378d52e33636a642dba7f87ef2...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-02T12:41:49.831287ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000039507/publication.md
observed 3326b726e7b4ca820f09993f30c88ebc...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-02T12:41:49.678942ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000039507/publication.txt
observed b78ac151637a746d311241fa789059df...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T11:19:38.536959ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000039507
observed 1451abef6b9c2459c26804ad11e1a94b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:19:38.518233ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000039507/manifest.json
observed b5f880378d52e33636a642dba7f87ef2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:19:38.496015ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000039507/publication.md
observed 3326b726e7b4ca820f09993f30c88ebc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:19:38.478901ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000039507/publication.txt
observed b78ac151637a746d311241fa789059df...
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