OpenTechnical

OT-2026-000015230

Publication integrity record

Foam pad vacuum gripper, 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-2026-000015230) never changes.

Identity and time

Publication numberOT-2026-000015230 · never reused
Internal UUID01a0ae6d-ef48-702b-b61a-47daaa600975 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:55.421510Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015230
StatusPUBLIC

Content hashes

Canonical text1a2922b5246b1bea298c8517881b1bed5918501964f8d16853c2abd92e5499d0
Markdown2aea16f4cbea0f2d82b389d8a363d6b2f78d31b591b2a4c74bd0944c07219ccf
PDF
Publication page6b802b822b92f26e29c72953a8af348e533b89074cee05de404ee553d2e38c5d
Manifest4a961c2eba9501b042abf4306d9483431a924fb433064b778c5e0a83e1ff5fc5

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
SignatureMB8J80yEavMoDUgc00CXxC9FAsh7NGr0rO+NyZL5OxDIO9aFhpzPhzvlag6O6w2Le3xjILXsXKeSReAkY+TDBQ==
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

2026-09-17T12:05:52.324404ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015230
observed 6b802b822b92f26e29c72953a8af348e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:52.307991ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015230/manifest.json
observed 4a961c2eba9501b042abf4306d948343...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:52.290308ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015230/publication.md
observed 2aea16f4cbea0f2d82b389d8a363d6b2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:52.271485ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015230/publication.txt
observed 1a2922b5246b1bea298c8517881b1bed...
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.