OpenTechnical

OT-2026-000030700

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, plant vacuum fed, sustained 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-2026-000030700) never changes.

Identity and time

Publication numberOT-2026-000030700 · never reused
Internal UUID01a0ae74-3fb3-76b0-b522-d03bb94371a3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:49.275361Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000030700
StatusPUBLIC

Content hashes

Canonical text72c91c8aaf822e0544d1a9d2c17b39aef17b0e5fc28ea93edf1ff50314a87c4d
Markdownbf796f40d91e6d8c5de5bfc429df0754bb7bd7023fd7a9d222b17cc400e4897c
PDF
Publication page5aa4bca749df309e124a37334aff6fc06fb2a0b1f7c6b74ad9c86306ae22d28b
Manifest2ef357ccc0c9a70a5e52bf80849875a710081b21947b4c8d68e823e7207261ac

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
SignatureslbOhpv9w3AvbVd9rJW1bC9YF9GSMVea7bDCGU86nC1FjEyzez6KVad4Slz9aH02wZg72dqJiq44oqMbICVhDg==
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

2026-09-17T11:36:37.129732ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030700
observed 5aa4bca749df309e124a37334aff6fc0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:37.112364ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030700/manifest.json
observed 2ef357ccc0c9a70a5e52bf80849875a7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:37.094857ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030700/publication.md
observed bf796f40d91e6d8c5de5bfc429df0754...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:37.076058ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030700/publication.txt
observed 72c91c8aaf822e0544d1a9d2c17b39ae...
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.