OpenTechnical

OT-2026-000007838

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, vented 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-2026-000007838) never changes.

Identity and time

Publication numberOT-2026-000007838 · never reused
Internal UUID01a0ae6a-908a-701e-9dc2-70f1f76fd2b5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:10:14.564317Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007838
StatusPUBLIC

Content hashes

Canonical texte54dc8aa979740b82655e110b2a493abd448fd87c1a64940f0f05c3ef377b613
Markdown3124e4e69aa06e6ac20ef845612ad684795580413f5bc1be4ab8a7e9b962d494
PDF
Publication page6ad7f953cc81f14beb46b43ee06dc7f0b54f8f022775cebf6a83b6137dbf8d93
Manifestc011a4261f9fc273e5ec5fb19e8a191ccd80f9e265abe7b7d925cc8b9c8c3e43

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
SignatureAz72Wk78CEh2bPCYMAq7tczjfw274UGIk+w9SHJkW3w9tG7rGsTHoVdN5xM+c8Fv+PwQNCKjm+r+agq0Ems3AQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:27:08Z
batch OT-TS-2026-W38-017 · RFC 3161 token · inclusion proof
root 20fdfaa98ae3657e4211fd7783095876...

Independent retrieval

2026-09-17T12:20:17.434461ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007838
observed 6ad7f953cc81f14beb46b43ee06dc7f0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:20:17.414077ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007838/manifest.json
observed c011a4261f9fc273e5ec5fb19e8a191c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:20:17.393207ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007838/publication.md
observed 3124e4e69aa06e6ac20ef845612ad684...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:20:17.371988ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007838/publication.txt
observed e54dc8aa979740b82655e110b2a493ab...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:19:50.510289ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007838
observed 6ad7f953cc81f14beb46b43ee06dc7f0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:19:50.487062ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007838/manifest.json
observed c011a4261f9fc273e5ec5fb19e8a191c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:19:50.469456ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007838/publication.md
observed 3124e4e69aa06e6ac20ef845612ad684...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:19:50.451038ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007838/publication.txt
observed e54dc8aa979740b82655e110b2a493ab...
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.