OpenTechnical

OT-2026-000031487

Publication integrity record

Two cup vacuum gripper, two zone face, four outlet manifold, three stage ejector, 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-2026-000031487) never changes.

Identity and time

Publication numberOT-2026-000031487 · never reused
Internal UUID01a0ae74-87ae-7d5d-b308-e809ffab75df · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031487
StatusPUBLIC

Content hashes

Canonical text4f42a7d5b3d762921e8128c710c855c9f7644fbecb4188e9c6fec6e4b36d8c66
Markdownc0fd4b8839d2f7c9461b07ee28301c17941a7c0764192ad6cd8fcf7bcd906241
PDF
Publication page3df009f7157a92c3ee3706b935d1d8a23854025756cdb01072539a22ebb3668f
Manifest34f27dfee62dc7f47f1c2d30b0c654a7e36424ccc01b9962bf045cb6d34d37c4

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
Signatured+F9p7QkdAcS8eskEvgVwsKtEecbL8Wvhdv6TBCj4Hs1nQEjgCQw1sBwT/+A+pRn26WnGR4BY1Q9s+ZB1+XCAQ==
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

2026-09-17T11:36:18.790521ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031487
observed 3df009f7157a92c3ee3706b935d1d8a2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:18.770371ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031487/manifest.json
observed 34f27dfee62dc7f47f1c2d30b0c654a7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:18.750886ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031487/publication.md
observed c0fd4b8839d2f7c9461b07ee28301c17...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:18.730428ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031487/publication.txt
observed 4f42a7d5b3d762921e8128c710c855c9...
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.