OpenTechnical

OT-2026-000029430

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, two stage ejector, supply line 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-2026-000029430) never changes.

Identity and time

Publication numberOT-2026-000029430 · never reused
Internal UUID01a0ae73-5e20-74ee-ab74-1a7547f3d817 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:51.545382Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029430
StatusPUBLIC

Content hashes

Canonical textc790550fe605ef4a7dc976e4f618b4a66ef1d9c1f37c3d3593e3f1f911668fa3
Markdown0f87882986c91300131c8f99c6afe9c01045ca9dddce8c3e736b4c577b7d9d9b
PDF
Publication page7bd2c3686e9acf752eed6b1786444c5cfea9aafdd6c03ede5a5a1523bf168982
Manifest29cd914c461ef47d3355d1c978fb5e0b1175e61970f4424b7c08666177a1f482

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
Signature+62IQteINbBBJTrBXpuBGl92DKUb4GEECiR9G9gchuqi6oct6/m1YclEgZu0PP0fNtgfmUbJtfikZaYq59c1CA==
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

2026-09-17T11:39:02.499836ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029430
observed 7bd2c3686e9acf752eed6b1786444c5c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:02.483213ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029430/manifest.json
observed 29cd914c461ef47d3355d1c978fb5e0b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:02.466720ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029430/publication.md
observed 0f87882986c91300131c8f99c6afe9c0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:02.445694ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029430/publication.txt
observed c790550fe605ef4a7dc976e4f618b4a6...
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.