OpenTechnical

OT-2026-000048103

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, two stage ejector, 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-2026-000048103) never changes.

Identity and time

Publication numberOT-2026-000048103 · never reused
Internal UUID01a0ae7f-c424-732a-9a65-aae90aad1184 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:24.028554Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048103
StatusPUBLIC

Content hashes

Canonical text46ad246859d3830b6ab284d4809d33f4229c47b54c16214b1898a03974ae3096
Markdownff7354903addbb06d8a73e161b6539bc5bd62f5c78ace5c8808b803f1976c879
PDF
Publication page4dd918a070faf0fa3e8dd0d47bcacfe47ea3750ae00379ab899bd45d24164593
Manifestc3d0f242022019f1655c327865bd678909f56a50a4dc59cef202aafb7b55399d

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
SignatureSGeaADiZYKwMjQwg+d8HyR9bb4wqeWHPBD0Zy58zmgzDCKw9WOdXiKqRhGE3ycC5rXM/hcE0dBOeNHxU99WMDw==
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

2026-09-17T11:06:07.757276ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048103
observed 4dd918a070faf0fa3e8dd0d47bcacfe4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:07.738896ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048103/manifest.json
observed c3d0f242022019f1655c327865bd6789...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:07.720204ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048103/publication.md
observed ff7354903addbb06d8a73e161b6539bc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:07.701869ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048103/publication.txt
observed 46ad246859d3830b6ab284d4809d33f4...
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.