OpenTechnical

OT-2026-000043636

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, pump fed, pulsed blow-off 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-2026-000043636) never changes.

Identity and time

Publication numberOT-2026-000043636 · never reused
Internal UUID01a0ae7b-92d0-7edb-89d0-b78c907e5413 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:49.254972Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043636
StatusPUBLIC

Content hashes

Canonical texteaabe01c170fd4071469c01e856bf9cd7b0e82a17923dbbfd37d013248b0ffb2
Markdown342d27e10c27167b2cb85723ddf6d1d08153f48233e6f25cf2a6eb0fb53419f9
PDF
Publication pagee8ab407b400f7a256baa6b2b416704d9b2fb6300ad4fb70c338ef8340ced60ca
Manifest6be5226b55326d973cdd60604c30f71c23812c40c939797b919294c7bbce3da2

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
SignatureGVRGcmQeRXI1MsMGoT74YMQJA09SWAAWpDcdeRmwRNk+FD+5WIUtTqc6bukYmGDGn4SuhzcX0Yo0dE1DQ2/oBg==
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

2026-09-17T11:13:06.674577ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043636
observed e8ab407b400f7a256baa6b2b416704d9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:06.656997ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043636/manifest.json
observed 6be5226b55326d973cdd60604c30f71c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:06.637652ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043636/publication.md
observed 342d27e10c27167b2cb85723ddf6d1d0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:06.619261ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043636/publication.txt
observed eaabe01c170fd4071469c01e856bf9cd...
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.