OpenTechnical

OT-2026-000020241

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, supply line pressure sensor, pulsed 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-2026-000020241) never changes.

Identity and time

Publication numberOT-2026-000020241 · never reused
Internal UUID01a0ae6f-4379-72e3-bcc1-6723beb80c42 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:22.507199Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020241
StatusPUBLIC

Content hashes

Canonical textd1763d53d7a2094aa2b406d54736aa7425c8c957b59f82549d3138b347b855f3
Markdown2b1c2f9337ea68144de9df7cf343ba15218865468835809f9667ebeff2762951
PDF
Publication page2686179e3b6d7de80a9a8c393045ec319a57d123faad468d4dcf3f3f355240d4
Manifest69b9afb8bf1a068fcf361eb10be22f6f459474239582ac1596d65e9616a17c22

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
SignatureM37MNFF/LVGu8BV6/42wlVP3d6qHzIUq73+5Sq4Om4Ey7wT7Fhxb6KVUvZosVXuM78WMWQZMEs74ZWt4f/qOBQ==
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

2026-09-17T11:56:35.065535ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020241
observed 2686179e3b6d7de80a9a8c393045ec31...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:35.047665ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020241/manifest.json
observed 69b9afb8bf1a068fcf361eb10be22f6f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:35.027536ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020241/publication.md
observed 2b1c2f9337ea68144de9df7cf343ba15...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:35.009013ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020241/publication.txt
observed d1763d53d7a2094aa2b406d54736aa74...
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.