OpenTechnical

OT-2026-000031583

Publication integrity record

Two bellows cup vacuum gripper, two zone face, four outlet manifold, pump fed, 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-2026-000031583) never changes.

Identity and time

Publication numberOT-2026-000031583 · never reused
Internal UUID01a0ae74-87af-72ab-af6d-9cf3232dca0a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031583
StatusPUBLIC

Content hashes

Canonical text9d4920cad7ce49b9cdb32d22ece2461fa8de39133930b94524348d213e0ded29
Markdown3882568820859f53f52fd066ff652a20b23a392e4e69616b3ad7840202273e1d
PDF
Publication page1e8690567605e6a0be38515057cd517762bd8468baa9d0e4209409736f194a58
Manifest6f6a2b9620d5589b360970294d6988d908200dd2063f1be508a2d47bb5a8105f

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
Signature+TZUexUqite6xAwPN3jn5SK+ISHqfRzbhvqsuWthHfrjpot4qLenzBwwuGddmhVKGNl+WoEBLqXMJzTk8tUZCA==
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

2026-09-17T11:36:26.180230ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031583
observed 1e8690567605e6a0be38515057cd5177...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:26.164815ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031583/manifest.json
observed 6f6a2b9620d5589b360970294d6988d9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:26.147309ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031583/publication.md
observed 3882568820859f53f52fd066ff652a20...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:26.129523ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031583/publication.txt
observed 9d4920cad7ce49b9cdb32d22ece2461f...
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.