OpenTechnical

OT-2026-000028797

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, two stage ejector, manifold 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-2026-000028797) never changes.

Identity and time

Publication numberOT-2026-000028797 · never reused
Internal UUID01a0ae73-2252-7de5-98e3-9779f1847276 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:36.158293Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028797
StatusPUBLIC

Content hashes

Canonical text6bc9a7701a58fe32d2615757749910dccfdbe9a54f64ca0b915e00e69b62d988
Markdownb040fe004e224537793e1995da2a1823c646669cc35d8d4e7a4c6d185371958a
PDF
Publication pageef8f225d2a0abd4f85875dd3ed1f0edc27b46a5b12a01a7c649ade90ff8a1711
Manifest2090bf1374bfdbf8e8244bc8f535865dde141c87055f6022cde455f05b8c32fc

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
SignatureXF/nUJHozSmzJ64yOqBVied5ukoW0fLY3u8UT9cK2hi2mkC3jycO5aTNT1BXZxL1t90s30BCexeSWSJZPDGpCg==
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

2026-09-17T11:40:03.192504ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028797
observed ef8f225d2a0abd4f85875dd3ed1f0edc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:03.172679ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028797/manifest.json
observed 2090bf1374bfdbf8e8244bc8f535865d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:03.151225ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028797/publication.md
observed b040fe004e224537793e1995da2a1823...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:03.130450ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028797/publication.txt
observed 6bc9a7701a58fe32d2615757749910dc...
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.