OpenTechnical

OT-2026-000012508

Publication integrity record

Four bellows cup vacuum gripper, 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-2026-000012508) never changes.

Identity and time

Publication numberOT-2026-000012508 · never reused
Internal UUID01a0ae6d-39f7-7e94-92f8-f57ac16467b3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:08.998406Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012508
StatusPUBLIC

Content hashes

Canonical text06d2d4db0d011141ac73bcb9b0eaf607cc3bd8f459540c645df61a4637bbed33
Markdown1565ac80c7078fc995d9c6d91764c71ffa0f614192ca8f4afaf5eff0cace68f4
PDF
Publication page66d4d0b6c1402cda2def25e1c2a6de6f3a4744f05e05f6031b1aee197464eb9c
Manifestac3e7a8954909b9b5bd9f188fa356d6cf137f21bb652619eb0dded7f3e86551c

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
SignaturefU9TFxEr5rEhSSWnexSJklJzXGIiB51YOaYynSKYdnVUymg1lI7ckqJV4H+FwVmfjZ27W2SEIZDK/hcqtdwiCA==
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

2026-09-17T12:12:01.739328ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012508
observed 66d4d0b6c1402cda2def25e1c2a6de6f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:01.719715ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012508/manifest.json
observed ac3e7a8954909b9b5bd9f188fa356d6c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:01.699676ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012508/publication.md
observed 1565ac80c7078fc995d9c6d91764c71f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:01.679151ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012508/publication.txt
observed 06d2d4db0d011141ac73bcb9b0eaf607...
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.