OpenTechnical

OT-2026-000048149

Publication integrity record

Single cup vacuum gripper, common isolation valve, three stage ejector, supply line pressure sensor, sustained blow-off after 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-2026-000048149) never changes.

Identity and time

Publication numberOT-2026-000048149 · never reused
Internal UUID01a0ae80-4de1-7932-a121-a8c5c04db9f5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:59.290761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048149
StatusPUBLIC

Content hashes

Canonical text2798a57c298a46fda86438ed0e99203366d3ead90af821dbb26e36ea63f539d6
Markdown21f669b1be6cfa760d9035164078281af58bf11ce75d3932c7b366303bed5b3b
PDF
Publication page719fa0cdca7a10117446fcc2ea9fc651c012f934378451cdff633461b39424ee
Manifest4263005f7a851ad4155146b8ce23991ba9d2eaa2810881dc37a2687e65762289

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
SignatureJ19yx1hM2mtoMWcyUK7PxqhfDyZ2lahG8j29mUiPyHQutFzSbscz7sXBg6Uc2nRisBs64ERcr2hYT/J8zxiwCQ==
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

2026-09-17T11:04:40.480782ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048149
observed 719fa0cdca7a10117446fcc2ea9fc651...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:40.460113ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048149/manifest.json
observed 4263005f7a851ad4155146b8ce23991b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:40.441181ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048149/publication.md
observed 21f669b1be6cfa760d9035164078281a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:40.422374ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048149/publication.txt
observed 2798a57c298a46fda86438ed0e992033...
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.