OpenTechnical

OT-2026-000031801

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, two stage ejector, pulsed blow-off after 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-2026-000031801) never changes.

Identity and time

Publication numberOT-2026-000031801 · never reused
Internal UUID01a0ae74-bad1-7ce4-99b2-d8666c956cf0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:20.739935Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031801
StatusPUBLIC

Content hashes

Canonical text8129b4e02312dc32abbb727cf4a8ec013824e718120cae678a4c4b89d7de8dc4
Markdown9d06961c22162219ba143248376180c0e9afc8b4630be044c72b134fd906fdfb
PDF
Publication pagec81fe931ba289a6de8a3a46d7cd2778e9b1fca535c01f1eb4420f1971473a95b
Manifest940ecaefc8360524846480d32cdb7715d15e909fb9b9b8fa5f34b05d30e69ead

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
SignatureNtjhDx02rtgmsKQtk8mbMZ0ESJipzRUKvbnMG/H89Gi5w+445do0RZv7VdSPAXErFOUvu6fgLQr4UiXo9ziaDQ==
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

2026-09-17T11:34:56.386699ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031801
observed c81fe931ba289a6de8a3a46d7cd2778e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:56.354398ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031801/manifest.json
observed 940ecaefc8360524846480d32cdb7715...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:56.333726ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031801/publication.md
observed 9d06961c22162219ba143248376180c0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:56.307250ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031801/publication.txt
observed 8129b4e02312dc32abbb727cf4a8ec01...
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.