OpenTechnical

OT-2026-000071634

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, vented 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-2026-000071634) never changes.

Identity and time

Publication numberOT-2026-000071634 · never reused
Internal UUID01a0ae92-1e90-7862-8c69-92ebe9419a52 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:26.841552Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071634
StatusPUBLIC

Content hashes

Canonical text68e91aaf1dbe0aa7332e2b6270dcd18311f71cd6acdc735504459162d63e89cc
Markdown35813bbd1f498c076c92edaab91b68783de0583ae83942c2fb871794f93d5831
PDF
Publication page0c37ce7a8bde1e34689147774b70f07c1408616e2c5f700b661a183a1351cc88
Manifest96b2e0f9458670376fe42465a971bae59ef28071027adbd6dd7044136669fecd

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
SignaturenUH3vsV5NTzIy6KT/UU5FCl+fvOqtKI7QSgXoRdYK/hWzpZ0uU+LLR9WRiadp1ciAnU6Sh3YZ6Coj9FV+SZPBQ==
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

2026-09-17T10:23:40.076834ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071634
observed 0c37ce7a8bde1e34689147774b70f07c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:40.059718ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071634/manifest.json
observed 96b2e0f9458670376fe42465a971bae5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:40.044324ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071634/publication.md
observed 35813bbd1f498c076c92edaab91b6878...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:40.028580ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071634/publication.txt
observed 68e91aaf1dbe0aa7332e2b6270dcd183...
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.