OpenTechnical

OT-2026-000058021

Publication integrity record

Four cup vacuum gripper, four outlet manifold, plant vacuum fed, supply line 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-2026-000058021) never changes.

Identity and time

Publication numberOT-2026-000058021 · never reused
Internal UUID01a0ae88-6ed9-727d-8723-f4c2ee159890 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:42:52.020108Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000058021
StatusPUBLIC

Content hashes

Canonical textc88070cacf56e322ec76bba715b4172d2d5e05a97ade5ebc0e8697c4a21f9faa
Markdown77a5cbd840a2abf8468634f395af875d0f842346411936f3d13ea3699aaf5d0e
PDF
Publication page34645d98a2c0a715d32dbe7fc07a7a69ed0a39dc12c5ce7807c568705dcd37a4
Manifest78447c9d0f836da1542ecc84aea7b9870123a2e08bfe09c5066148780ebd4b65

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
SignatureRas7qMUmzlmJ3vGBrKIRmg1etFdK8HffMvsTnRC535Gd2R2Os6xBX5494bBT0fBVLyAhwlFsgS5ZzdfteyOVAw==
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

2026-09-17T10:47:39.649552ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058021
observed 34645d98a2c0a715d32dbe7fc07a7a69...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:39.631443ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058021/manifest.json
observed 78447c9d0f836da1542ecc84aea7b987...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:39.611022ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058021/publication.md
observed 77a5cbd840a2abf8468634f395af875d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:39.592953ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058021/publication.txt
observed c88070cacf56e322ec76bba715b4172d...
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.