OpenTechnical

OT-2026-000057473

Publication integrity record

Six cup vacuum gripper, six outlet manifold, common isolation valve, pump fed, manifold pressure sensor, vented 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-2026-000057473) never changes.

Identity and time

Publication numberOT-2026-000057473 · never reused
Internal UUID01a0ae88-2692-7a09-9311-7fbebd0f5d3c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:42:33.513637Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000057473
StatusPUBLIC

Content hashes

Canonical text93db90a7d88f52339f540625c0939c1008af18416f5d3044ed446d337619b87f
Markdown4ab4673f8626ae70edc2b94f8b52dfd631265fd95619d1bb4c509b897c01c304
PDF
Publication page1cd66787de7512c2cb3d67f10e10ef1f1d8a9c2cc11494cf430ce8a687542bd2
Manifestfd98affac7839496a5fd430b0d68dc0075f6d6bc4a019db8bb9e3976747f6196

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
Signature9n5D8tz28CMhOjXD7FDhRU2vWcOFfOdYHvugTikFGDMY1DhXU/7V7V021I3sI0u2FJF72IarWwTDmuiQPRS6CQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:47:59.516198ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057473
observed 1cd66787de7512c2cb3d67f10e10ef1f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:59.497205ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057473/manifest.json
observed fd98affac7839496a5fd430b0d68dc00...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:59.477225ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057473/publication.md
observed 4ab4673f8626ae70edc2b94f8b52dfd6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:59.458981ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057473/publication.txt
observed 93db90a7d88f52339f540625c0939c10...
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.