OpenTechnical

OT-2026-000029964

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-2026-000029964) never changes.

Identity and time

Publication numberOT-2026-000029964 · never reused
Internal UUID01a0ae73-ac48-7647-a4fa-fd7ae20d25c9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:11.501096Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029964
StatusPUBLIC

Content hashes

Canonical text7f6a0805f87141f893066d6e1f595bc47e3aa946e22e3cd8d895939192d0d423
Markdown4ae8200d36eb15c83135abe538bf38c6bd88de2271563e26b65dc75b92b2b2dc
PDF
Publication page7d47197b76b4d2746a6869751a4d8c92f0f9740d0b66fbc7d1f54c626901faf0
Manifest28a1328f99713fb9e79a6680192e1c12a521283af623eeca07d5939970a02f5d

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
SignatureiAsydYWoPu+YEOxGiBPwiu/3SoSAGQ9rAhhKYdxG19/gZy/tQAqmKUxs2ud4SZDSXJKWYvAWkKVS+6KKCdmrBg==
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

2026-09-17T11:38:40.917205ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029964
observed 7d47197b76b4d2746a6869751a4d8c92...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:40.900657ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029964/manifest.json
observed 28a1328f99713fb9e79a6680192e1c12...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:40.884746ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029964/publication.md
observed 4ae8200d36eb15c83135abe538bf38c6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:40.859614ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029964/publication.txt
observed 7f6a0805f87141f893066d6e1f595bc4...
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.