OpenTechnical

OT-2026-000043428

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, plant vacuum 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-2026-000043428) never changes.

Identity and time

Publication numberOT-2026-000043428 · never reused
Internal UUID01a0ae7b-327f-75d0-b04e-dde2505a235f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:24.717423Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043428
StatusPUBLIC

Content hashes

Canonical text962d6d2fe94c5844d736cfcce57e3573f6e390e4ee0cd38a07c4ed4ed15cf832
Markdown16a90763eff87615897c8504331d09b25199f6feaa8ce61281e4ea0909bccfd6
PDF
Publication page24f71a1b7c101266b30d86f1c248c56c91cc38e17fcf3388ba272d8bb56a01bc
Manifestec4598df5b2277206e32c082a73811dfd6dd5bf7085c2de3cf9f8c16d2c6c8d1

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
SignatureqsJuxudjlvUuNOI901E1//dZPQNZC71YZuGzWYQRu45uR1ltWqpY2+jnI8whYyZaQftqUDJrkXFRalkf+ztyDw==
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

2026-09-17T11:13:58.372257ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043428
observed 24f71a1b7c101266b30d86f1c248c56c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:58.354099ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043428/manifest.json
observed ec4598df5b2277206e32c082a73811df...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:58.336072ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043428/publication.md
observed 16a90763eff87615897c8504331d09b2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:58.316678ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043428/publication.txt
observed 962d6d2fe94c5844d736cfcce57e3573...
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.