OpenTechnical

OT-2026-000055237

Publication integrity record

Four cup vacuum gripper, four 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-2026-000055237) never changes.

Identity and time

Publication numberOT-2026-000055237 · never reused
Internal UUID01a0ae86-a0ff-73ad-a681-ddfc7b9e805a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:40:53.783868Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000055237
StatusPUBLIC

Content hashes

Canonical textb41bc5737b13fd5ea2688c4a9e26e991184ab1887070cc02e4320bdb4b653d70
Markdown3e007e11d6822b6053ffe26c1611b76afe0a1b1f146cc1ba7f65fd279a1b3b44
PDF
Publication pagefcabb5d9af9bf29b20f117fc6bae00247ce7abd5cf340a4b5e2cd524710bed8d
Manifest182e6d041bd5d8ea127c331b42342db2a16a57547fd9a26647d83b84bbc74f79

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
SignaturemOOz5A3mFEJKZxY/3+Gb5Ouc2D71vYSsEXuiGjMeflLqbvnZO44o7CDeGtnzgvKBe7izqUZRU6SKWoO3G4jgBg==
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...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:51:49.214934ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055237
observed fcabb5d9af9bf29b20f117fc6bae0024...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:49.197322ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055237/manifest.json
observed 182e6d041bd5d8ea127c331b42342db2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:49.179400ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055237/publication.md
observed 3e007e11d6822b6053ffe26c1611b76a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:49.161819ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055237/publication.txt
observed b41bc5737b13fd5ea2688c4a9e26e991...
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.