OpenTechnical

OT-2026-000056736

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, plant vacuum fed, 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-2026-000056736) never changes.

Identity and time

Publication numberOT-2026-000056736 · never reused
Internal UUID01a0ae87-7af6-732a-9a0d-9be37cc8869c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:49.577818Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000056736
StatusPUBLIC

Content hashes

Canonical textf521d71c7ae5533e6d9d98d5f50d45ddb4f39a4fc792e08a0a446525d97f1b03
Markdown6207695762bef94eba11b3808553072eb939ef0d40c6b6e8500afa53fa8b7640
PDF
Publication pagecfd425a69f26164f5453c1cc4b131c2153cbd12a7826a8225477aad0ebac0ab7
Manifest317de75a1da7f2a8052654e16727d966138e0d03b5eba260ba5748ac828536f2

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
SignaturezWqvGTcfrw2RA33cEOEJpylWbQ8jG/1iXtoM4e7Sq/2sboY3l+TDMAH67mACOdXM2nVZ/k+px7s1gaiYbnqWDQ==
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

2026-09-17T10:50:10.440743ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056736
observed cfd425a69f26164f5453c1cc4b131c21...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:10.419717ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056736/manifest.json
observed 317de75a1da7f2a8052654e16727d966...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:10.400209ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056736/publication.md
observed 6207695762bef94eba11b3808553072e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:10.381409ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056736/publication.txt
observed f521d71c7ae5533e6d9d98d5f50d45dd...
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.