OpenTechnical

OT-2026-000025281

Publication integrity record

Four cup vacuum gripper, four outlet manifold, three stage ejector, supply line pressure sensor, 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-2026-000025281) never changes.

Identity and time

Publication numberOT-2026-000025281 · never reused
Internal UUID01a0ae71-5fa6-761a-b1a1-34cbaa9e3819 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:17:40.790954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000025281
StatusPUBLIC

Content hashes

Canonical textf0eff6cb33e9556e0ae398eefef8d0a0a613e927e22b0b9ed6eb5d3827ce130d
Markdown8551d88462456ba5ea22595397a2be513fc002a47e2713b593b7d5f6978fc292
PDF
Publication page99a94e9d76c9f85995799ea8534fc382201c170788cf20e5fb9be24c83fc6913
Manifest016dc24e57b4758085256d28c7af841e637db63be1697836cc989b5d4ac2be65

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
SignatureS+Z+oNhRe6F+8hQL+PgBVa93YvvOZ9c8cX/nmmgZcpyjQJ/l/opk/9QGViZisfOYeAe489qEU/MR6E4sq5LwAg==
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

2026-09-17T11:47:17.530524ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025281
observed 99a94e9d76c9f85995799ea8534fc382...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:17.512055ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025281/manifest.json
observed 016dc24e57b4758085256d28c7af841e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:17.494900ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025281/publication.md
observed 8551d88462456ba5ea22595397a2be51...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:17.475057ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025281/publication.txt
observed f0eff6cb33e9556e0ae398eefef8d0a0...
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.