OpenTechnical

OT-2026-000027012

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, sustained blow-off before set-down

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-2026-000027012) never changes.

Identity and time

Publication numberOT-2026-000027012 · never reused
Internal UUID01a0ae72-3453-77df-aabd-5327b7cd566c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:35.358864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027012
StatusPUBLIC

Content hashes

Canonical text60eef533d0dfa3bc5962ca7360a1618d1aa9608ff6a00204473e2ab2ded2ae29
Markdownb0fb72eb4f5ccd559f58fc1e7192921b705e50c76dac5ddf6db0891797c37f14
PDF
Publication paged59b49a2d6ef26f32857eb023b890d6e224800758313c576955a74ea6a41f885
Manifest917f9c3954eb41842428deab476008a2b607ab2f2884e73950a650b3e8c8ed6a

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
SignatureL6qjO0pRTCJ7RRhlF/7Pwvyhp5KBS4qilddzKaJlu1njZq2Ivg5vozldr0J1p5CPQ+hraR/MLeMS5ql6kpVeCA==
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

2026-09-17T11:43:45.633224ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027012
observed d59b49a2d6ef26f32857eb023b890d6e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:45.613395ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027012/manifest.json
observed 917f9c3954eb41842428deab476008a2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:45.593484ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027012/publication.md
observed b0fb72eb4f5ccd559f58fc1e7192921b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:45.576689ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027012/publication.txt
observed 60eef533d0dfa3bc5962ca7360a1618d...
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.