OpenTechnical

OT-2026-000023991

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, plant vacuum fed, 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-2026-000023991) never changes.

Identity and time

Publication numberOT-2026-000023991 · never reused
Internal UUID01a0ae70-aed7-785e-a7f2-a1a9e66ea471 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:55.528856Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000023991
StatusPUBLIC

Content hashes

Canonical textfef51c1a9dccab9b1b72bbbf4b41eee17dc1cb0b8e6243ddcad0e60b1f43ecfa
Markdown832abb1b81422420d96ffd1cf14e6812d755ed6bb75fd66a8394411c69399891
PDF
Publication page727dfcb84739718c5c37c63c06c8b5c38da38e812fd2b663debf7d12b9e216d6
Manifestb809b12cdba2be0381425e84b41134b225bcffcd39c656f856069902c82c67f4

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
SignaturecJ/jibf9C+RuCRq3ZT7KEfmFFsIfNJTABxd/7Mh9mzugL6TGCebtbzz+ppiHXVKqlLelYFaKSyp4/VysaPVuAQ==
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

2026-09-17T11:50:45.793763ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023991
observed 727dfcb84739718c5c37c63c06c8b5c3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:50:45.773707ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023991/manifest.json
observed b809b12cdba2be0381425e84b41134b2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:50:45.755698ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023991/publication.md
observed 832abb1b81422420d96ffd1cf14e6812...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:50:45.738054ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023991/publication.txt
observed fef51c1a9dccab9b1b72bbbf4b41eee1...
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.