OpenTechnical

OT-2026-000047884

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, supply line pressure sensor, pulsed blow-off after 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-2026-000047884) never changes.

Identity and time

Publication numberOT-2026-000047884 · never reused
Internal UUID01a0ae7f-c421-7194-8903-a20be5d08c39 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:24.028554Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000047884
StatusPUBLIC

Content hashes

Canonical text3587683c98083ec623a8e44ae51db3fb58af750b2ba2fca3c22e1e0618b07867
Markdownba7bd43283172e4ae6061b5d24cff2526aa71237baab0d23afdd04d18c731c97
PDF
Publication page53e1855072d1c9752507b11453a79c923e90ca4fd8019716a38a2dacace7c058
Manifesta1c7bd8f50e374780f7c1e15d6bd4b65a491a95843935794b4919225f67d6cb8

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
SignaturefWTvFxWrfBSnEo0+30OoaWz83aa9KtZEu8XUsASPsQ+3px3NhNoFpk/0dawfwdKnIGcKFrCuTL/lDFsv8HRsBQ==
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

2026-09-17T11:05:49.015912ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047884
observed 53e1855072d1c9752507b11453a79c92...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:48.996679ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047884/manifest.json
observed a1c7bd8f50e374780f7c1e15d6bd4b65...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:48.975041ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047884/publication.md
observed ba7bd43283172e4ae6061b5d24cff252...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:48.955929ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047884/publication.txt
observed 3587683c98083ec623a8e44ae51db3fb...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent