OpenTechnical

OT-2026-000049899

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, pump fed, pressure sensor per zone, 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-2026-000049899) never changes.

Identity and time

Publication numberOT-2026-000049899 · never reused
Internal UUID01a0ae81-fd76-72bb-ac21-b0d3035c41ff · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:49.774136Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049899
StatusPUBLIC

Content hashes

Canonical text2624b235e40d1c13ec31d2b5f4917e79c8aa7c6052ebc89ec40f778566e32e44
Markdown21c1babf384d21172c16126f7bd6c7e7ece37323d491a6391f8a18664c15f4ec
PDF
Publication pagea1689abb7a312b7ec3032fe954fcc7937ee77214d755d6e6e234bac533c5c467
Manifest6e0906668ad1b951d8287aa53badbbb162e23ed945d2bee0fe42e6a2585dd409

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
SignatureBmtq4k/XZD+jhWzu29cX40EP3kE0oN1dlyiagzCFmRNwRTsr+l8Y0HlC5hjuJTDvE/VPBdrieYMaW6NpA1x0Aw==
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

2026-09-17T11:01:49.130673ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049899
observed a1689abb7a312b7ec3032fe954fcc793...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:49.110936ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049899/manifest.json
observed 6e0906668ad1b951d8287aa53badbbb1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:49.092317ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049899/publication.md
observed 21c1babf384d21172c16126f7bd6c7e7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:49.074605ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049899/publication.txt
observed 2624b235e40d1c13ec31d2b5f4917e79...
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.