OpenTechnical

OT-2026-000056203

Publication integrity record

Four cup vacuum gripper, four zone face, 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-2026-000056203) never changes.

Identity and time

Publication numberOT-2026-000056203 · never reused
Internal UUID01a0ae87-4bd1-7382-a63d-692e9d9b9806 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:37.517586Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000056203
StatusPUBLIC

Content hashes

Canonical text8a6dc932d6b30e24a2bd38e434856d94bd645081bfb94e22506b9489054f5cdb
Markdown88908c07d29b36fe418fa22e14396ae0cf05a9f1f7db7334b01d2ff9f8481ce6
PDF
Publication page7f7af7fb85d271a5c68ab08c0852a2964192b89a36cb6d344333dfdb232b6899
Manifest9f1dd7a9c746fe4b92bcb0fb350e14ec1204b9e0a3b731c7f8a13336f856597c

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
SignaturegBztrnn8iztYYr6kyHm7LWte6flvxg+k4uFBXK/wN9C5TsLX9m59+E7J7FR0vmU+SUwXsLw8S8Zm+ajz+3ZuBw==
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

2026-09-17T10:50:40.471153ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056203
observed 7f7af7fb85d271a5c68ab08c0852a296...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:40.451966ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056203/manifest.json
observed 9f1dd7a9c746fe4b92bcb0fb350e14ec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:40.433178ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056203/publication.md
observed 88908c07d29b36fe418fa22e14396ae0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:40.414595ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056203/publication.txt
observed 8a6dc932d6b30e24a2bd38e434856d94...
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.