OpenTechnical

OT-2026-000026478

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, plant vacuum fed, manifold 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-2026-000026478) never changes.

Identity and time

Publication numberOT-2026-000026478 · never reused
Internal UUID01a0ae71-f4a8-7d47-91c4-3ad56c445359 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:18.960773Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000026478
StatusPUBLIC

Content hashes

Canonical textf2312d42a90657d164d98f257ad8f9c4407b74b52af240e407dab552bff8d168
Markdown91b5a9116eed5e913a8f1dddab83346f8ad56727a1789cb28c55928167bdf8c6
PDF
Publication page49e58fcb46438a7229f5704269cb3a6c55393ec0683c7694111a2eb90c48a2d8
Manifestc984ea735dd9f057a66c400484aa0b8f8471ebd7c217b5c1c0f75758cf2c8316

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
SignatureOQNrMf/bPKFaMOZxhVEN80QlDenwlp+9n9Pl6UCHd9M3CaLvb7//0EfkR3dLDynoqMnscX+O+LxxsyoId9QLBA==
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

2026-09-17T11:44:29.073736ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026478
observed 49e58fcb46438a7229f5704269cb3a6c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:29.054650ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026478/manifest.json
observed c984ea735dd9f057a66c400484aa0b8f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:29.026117ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026478/publication.md
observed 91b5a9116eed5e913a8f1dddab83346f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:29.002786ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026478/publication.txt
observed f2312d42a90657d164d98f257ad8f9c4...
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.