OpenTechnical

OT-2026-000004912

Publication integrity record

Vacuum cup gripper, common isolation valve, two outlet manifold, three stage ejector

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-2026-000004912) never changes.

Identity and time

Publication numberOT-2026-000004912 · never reused
Internal UUID01a0a927-9326-7d17-a0ca-8e59e02232ca · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:38:58.217756Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004912
StatusPUBLIC

Content hashes

Canonical textf42127df8b73f5621d127a666b9469505cb87b7e7f77dd29346885ee47816626
Markdown19d0221aca3ef921bed701ea77b356810bb65ecdca901e7f09fd3222e7c982ef
PDF
Publication paged7d57c89e3b05280110fc7b32826352a31aa731cfa904d9038ef04021e53d56f
Manifestd532ea7b62df7f8cd46cc9a53c7eaa5a5c61180648d0ab56c89f7c2fe0e7d48a

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/CPHsEa9TMjMWZzRkHEImFDvMGQgEHa85HIlXoMG/Pmw7xmFiXfoX6Z32k8YhHEJgdAu+vWT49+tvMorBX4BAw==
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

2026-09-16T07:40:05.478300ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004912
observed d7d57c89e3b05280110fc7b32826352a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:05.464106ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004912/manifest.json
observed d532ea7b62df7f8cd46cc9a53c7eaa5a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:05.449510ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004912/publication.md
observed 19d0221aca3ef921bed701ea77b35681...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:05.434996ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004912/publication.txt
observed f42127df8b73f5621d127a666b946950...
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.