OpenTechnical

OT-2026-000049383

Publication integrity record

Two bellows cup vacuum gripper, two zone face, three outlet manifold, plant vacuum fed, pressure sensor per zone, 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-2026-000049383) never changes.

Identity and time

Publication numberOT-2026-000049383 · never reused
Internal UUID01a0ae81-8f7b-7b9d-ae20-db1e840db2e2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049383
StatusPUBLIC

Content hashes

Canonical textef2b457bb539203d12254fa2fe80ded46f1e45d8905702a34e4822c5cc780847
Markdown94eda62cd9ca71a899b2f298f05ed1ee4a26a71b1fee3b7d65dfabb6318a12b7
PDF
Publication page38561285f54f248dc3c126f4b9e815fed2450c70b314f1f898c8275ca64cd964
Manifest755af17369c758461c19840f4498cc26e6aea536f36b6715b6855e3595e42edb

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
SignatureTjhsRgBm3uvgGs2FnW6kU3A7tUIuU3r+JIf2NwWFFMuyHxqDrll2PZlSfGVPjQI03fUWD/8oNZG1lt2VQPCvDw==
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

2026-09-17T11:02:11.585996ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049383
observed 38561285f54f248dc3c126f4b9e815fe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:11.568146ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049383/manifest.json
observed 755af17369c758461c19840f4498cc26...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:11.549815ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049383/publication.md
observed 94eda62cd9ca71a899b2f298f05ed1ee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:11.531534ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049383/publication.txt
observed ef2b457bb539203d12254fa2fe80ded4...
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.