OpenTechnical

OT-2026-000004882

Publication integrity record

Bellows cup vacuum gripper, common isolation valve, four outlet manifold, three stage ejector, contact triggered

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-2026-000004882) never changes.

Identity and time

Publication numberOT-2026-000004882 · never reused
Internal UUID01a0a926-7a97-778f-b02a-328ea8fedb52 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:37:46.394660Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004882
StatusPUBLIC

Content hashes

Canonical textdfd1df3ae2ed35b5cf506a0ab31c34dde6b029088d05ed30cccabbca03b70461
Markdown8464d7630da63d9150dd84105da91d6b4a9f519f03924ae1607dcef8bf65213f
PDF
Publication page0d0aba8f0ac85c5c1607ec21b90f4ebb6f0b945990b38bf2bc94aa02350e4240
Manifestcc03f56dce90677b671ce6d4aff77fe17506406f51775de1ea33b8c9055e28a3

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
SignatureRNbrrkUf6f0LulwfHW0aSU7SnWmjFwHyhq0itVAsrpuq9z/19tB8gphy4oG17HhKH2FxllD4hR1SvMDyPZ3sDA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:47:02Z
batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof
root e1b42dfa4cd0fb1e3e472afd2db961c2...

Independent retrieval

2026-09-16T07:40:08.890719ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004882
observed 0d0aba8f0ac85c5c1607ec21b90f4ebb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:08.877769ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004882/manifest.json
observed cc03f56dce90677b671ce6d4aff77fe1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:08.748994ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004882/publication.md
observed 8464d7630da63d9150dd84105da91d6b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:08.732799ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004882/publication.txt
observed dfd1df3ae2ed35b5cf506a0ab31c34dd...
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.