OpenTechnical

OT-2026-000031633

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, pulsed 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-2026-000031633) never changes.

Identity and time

Publication numberOT-2026-000031633 · never reused
Internal UUID01a0ae74-bacf-7eb4-b6a3-babb3816f06f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:20.739935Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031633
StatusPUBLIC

Content hashes

Canonical textcedfb76f4d434b92577217d8c7ce34c669341b8d1fff99014131a5391f51ecd2
Markdown81e54a4c111bd813073a508677a644c84facea746da012d0e4bf66da65865d03
PDF
Publication page4138dfabec4c7582486c9bd3c9a7e2a402e7abeda210634809474c0332d913cb
Manifestdba01141303f7de84258aadcd12e6be73a02ad8d7416c346aa2bd1bb716b6ecc

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
Signature7z4Q/UoChxtgyn+XdLgNif6n4LrTmWBZKSwjiYb3Cvcu3h89iBm4LAw5WQ+3Vz+aUSYM3PCHFgM4OWkjkyo3BA==
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

2026-09-17T11:34:41.139240ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031633
observed 4138dfabec4c7582486c9bd3c9a7e2a4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:41.121370ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031633/manifest.json
observed dba01141303f7de84258aadcd12e6be7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:41.103449ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031633/publication.md
observed 81e54a4c111bd813073a508677a644c8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:41.086445ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031633/publication.txt
observed cedfb76f4d434b92577217d8c7ce34c6...
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.