OpenTechnical

OT-2026-000030289

Publication integrity record

Six cup vacuum gripper, six outlet manifold, plant vacuum fed, manifold pressure sensor, 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-2026-000030289) never changes.

Identity and time

Publication numberOT-2026-000030289 · never reused
Internal UUID01a0ae73-e501-7757-bc16-950dd23bc5be · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:26.007257Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000030289
StatusPUBLIC

Content hashes

Canonical texteb293cce4264c359b03adb819b4130e4361a4885981d45eef03e8f2e0366b378
Markdownf6978a258c3ccd495ac8c5513129b108c1259757d8b0a0ad7ba13cb4f5567603
PDF
Publication page3f46e43322ca8b9579a56815e2e7c8fb617651a438265259d6ec3dbf2e45313f
Manifest696825a0f14a8e6cc6b6d62d9934e9c7d6dbb9ede7c58cbc767e82af5a95ef92

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
SignaturelXpQ2keke+G9Wxq3VQ+6YjHkpg/jjKi5bmtcbnRLfhRqbOxv/psm97reSg+0Lwdoq6rhkHWXsFLy/197Jp9CAQ==
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

2026-09-17T11:37:57.506267ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030289
observed 3f46e43322ca8b9579a56815e2e7c8fb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:37:57.489665ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030289/manifest.json
observed 696825a0f14a8e6cc6b6d62d9934e9c7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:37:57.471874ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030289/publication.md
observed f6978a258c3ccd495ac8c5513129b108...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:37:57.454351ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030289/publication.txt
observed eb293cce4264c359b03adb819b4130e4...
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.