OpenTechnical

OT-2026-000048351

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, single stage ejector, pressure sensor per zone, pulsed blow-off before set-down

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-2026-000048351) never changes.

Identity and time

Publication numberOT-2026-000048351 · never reused
Internal UUID01a0ae80-4de4-781f-b904-ab0c7459a66a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:59.290761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048351
StatusPUBLIC

Content hashes

Canonical text89782207e22609a868725beaa0df9cbaf460358ac2afc6c9cabaeccf6bcf69b1
Markdown4d645f42567ca7101361c3f07ed5d2bad37c878dac6ac3224f09ebbb10ae1ae7
PDF
Publication pagea65cc0a7b924729f37acf20650124e03498162e13555ac03a1d84c9664143128
Manifest2119d4d7952ed61d9bfc2932f191a3f78dc3d21255d24e8a8526aa1b2d7e699e

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
SignatureULaqJIEyRy2oHsH7JQxsNrHxFZkkvB7jwqJ8rpf+uViNp8NL+eB1CmGH9+BFmkXqLLnCnw44lrVHJBWulhXPAw==
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

2026-09-17T11:04:57.957333ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048351
observed a65cc0a7b924729f37acf20650124e03...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:57.935901ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048351/manifest.json
observed 2119d4d7952ed61d9bfc2932f191a3f7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:57.917351ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048351/publication.md
observed 4d645f42567ca7101361c3f07ed5d2ba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:57.897384ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048351/publication.txt
observed 89782207e22609a868725beaa0df9cba...
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.