OpenTechnical

OT-2026-000025158

Publication integrity record

Foam pad vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, sustained 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-2026-000025158) never changes.

Identity and time

Publication numberOT-2026-000025158 · never reused
Internal UUID01a0ae71-5fa5-75d0-b36d-47eba9115601 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:17:40.790954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000025158
StatusPUBLIC

Content hashes

Canonical textd54b854b247bb78b9d3dc02089dcbf70e2ea5e5247272faf158f7e81fd9cf54e
Markdown43cab9ac3f84a775099cef80b34c160cb12503024fc58f7316896c1c2cd7c6a1
PDF
Publication page0de27d1423edaa646127e5dd57b59c656161404839e1d7963554e97763d1ee19
Manifestfb37c153c62472e3179447760e0145b44a1d478391306b743f1a879676832c83

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
SignatureCkV6k8fEMNCHk4yRE1Z7nMU4cq1/LDvwF1nQvAVGBCDYOrzvY17fs+AhF3o6b2pJB6QIsxVjyqGtsKibA0ywDw==
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

2026-09-17T11:47:02.800707ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025158
observed 0de27d1423edaa646127e5dd57b59c65...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:02.781693ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025158/manifest.json
observed fb37c153c62472e3179447760e0145b4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:02.760967ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025158/publication.md
observed 43cab9ac3f84a775099cef80b34c160c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:02.743168ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025158/publication.txt
observed d54b854b247bb78b9d3dc02089dcbf70...
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.