OpenTechnical

OT-2026-000081539

Publication integrity record

Two cup vacuum gripper, two zone face, three 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-2026-000081539) never changes.

Identity and time

Publication numberOT-2026-000081539 · never reused
Internal UUID01a0ae97-0f71-726c-a8db-cddf4bdbaf79 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081539
StatusPUBLIC

Content hashes

Canonical text3a70e6e205c9eecaf4e614f36d2296ed64942aa42a36fa752728b868408ddff9
Markdown12c8338bdaea6af2ef0e3ca3f4e1dd01a3bbe67ef13a69de196d9b06f8cc2ee1
PDF
Publication page5f37916e125cdc1a2caff7d07e47f376bec6f4c59b2f4cc87943e10e896e245b
Manifest73daab231b12f491db5de31323689c1426006a2e87dc80e0325f2dccd37642d0

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
SignatureWBCwWd6Mr0ZjF2IEG7qGuaV4qutP+VndvcVqoxYJDvw9q15+rfmGArfU8EN9WxYXuOPgkXUXBFYiOow6scBLAw==
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

2026-09-17T09:59:33.699621ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081539
observed 5f37916e125cdc1a2caff7d07e47f376...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:33.679470ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081539/manifest.json
observed 73daab231b12f491db5de31323689c14...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:33.661866ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081539/publication.md
observed 12c8338bdaea6af2ef0e3ca3f4e1dd01...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:33.643815ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081539/publication.txt
observed 3a70e6e205c9eecaf4e614f36d2296ed...
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.