OpenTechnical

OT-2026-000043713

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, pump 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-2026-000043713) never changes.

Identity and time

Publication numberOT-2026-000043713 · never reused
Internal UUID01a0ae7b-92d1-743e-94ae-db7eb5f51cba · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:49.254972Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043713
StatusPUBLIC

Content hashes

Canonical text5eec41715e9b5c5f1cfcc7b130bd983c528193830a3023df1bada124afae6958
Markdowne474eea1014cc0d11fab460fd59ef888a68505dd2c12b3bac4861e932199c866
PDF
Publication paged31fcdf3e3642e112d8430d21c0e74f28429dbfbe0f4edd7de2a304f495bc231
Manifestb255e86ac1fb2058337610a6a7c14612a38aea198fee31ee63f9b1188b629fdb

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
Signaturel48F8ZTHSkwYTjwH3cXsjS4hB3k2jXvP+f7j22boLZLRovpbYKyAk4+xjk9zOoINvpbYAE6ToiiuLyRbq+03Dw==
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

2026-09-17T11:13:12.753627ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043713
observed d31fcdf3e3642e112d8430d21c0e74f2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:12.735387ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043713/manifest.json
observed b255e86ac1fb2058337610a6a7c14612...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:12.715795ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043713/publication.md
observed e474eea1014cc0d11fab460fd59ef888...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:12.696282ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043713/publication.txt
observed 5eec41715e9b5c5f1cfcc7b130bd983c...
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.