OpenTechnical

OT-2026-000028049

Publication integrity record

Two cup vacuum gripper, two outlet manifold, single stage ejector, manifold pressure sensor, sustained 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-2026-000028049) never changes.

Identity and time

Publication numberOT-2026-000028049 · never reused
Internal UUID01a0ae72-a51f-7245-b70a-b166f966d7d3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028049
StatusPUBLIC

Content hashes

Canonical text39a567a6910a2acd0f77d2c7b1b14f0b952c9952d5ac703e50bafcd6d519c9c9
Markdownffee4ffcd6c37241ec62420085556f5d7be39b11fb03d6cbbea9caaf46be77bb
PDF
Publication pagee97d6a3fcf0472f71ab12fcb14bebdeb0403e6738ffc905f9781630e53f17616
Manifest6b7c4754323c383cd115fe610e6de0ae69733a32b72eeead81d703cfe58b7f65

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
Signaturew16X27eixhMPP0+kGF5P3+CxFpZ8fyzBulnEXYNC/o/nAPe+781DMo7iYW1Em+YaHKD49csUdvbWYZuvxGlVBw==
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

2026-09-17T11:42:22.842805ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028049
observed e97d6a3fcf0472f71ab12fcb14bebdeb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:22.826680ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028049/manifest.json
observed 6b7c4754323c383cd115fe610e6de0ae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:22.809514ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028049/publication.md
observed ffee4ffcd6c37241ec62420085556f5d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:22.792876ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028049/publication.txt
observed 39a567a6910a2acd0f77d2c7b1b14f0b...
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.