OpenTechnical

OT-2026-000047827

Publication integrity record

Foam pad vacuum gripper, two zone face, common isolation valve, pump fed, 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-2026-000047827) never changes.

Identity and time

Publication numberOT-2026-000047827 · never reused
Internal UUID01a0ae7f-c421-7e17-9b34-d498f3530546 · 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-2026-000047827
StatusPUBLIC

Content hashes

Canonical text3d23aa63094c433323dd7a7fe748816483bf99daeaed78d394eaa9791e1e662a
Markdown3234427b1833dd1fa73a1aad4bc0b729ec9e18202787cc62e5588f06c6415775
PDF
Publication page5e9ab85db9dea3515efa40fb1e7f2f1df4c154a1ff47f21219886416587c74e4
Manifeste4cb5dcaba34879c67b45e13ae66ba8ac43307741cb2956b442520a22f38cfd0

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
Signaturelq98u6xacHoQEsu9Y53vAXCpgQI0xemdAxh1TU3LBratceMO0Zrn+XbwU5nWyPAHjmXAMSPM/N/YcT0aSmVXCA==
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

2026-09-17T11:05:44.319011ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047827
observed 5e9ab85db9dea3515efa40fb1e7f2f1d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:44.302410ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047827/manifest.json
observed e4cb5dcaba34879c67b45e13ae66ba8a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:44.286627ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047827/publication.md
observed 3234427b1833dd1fa73a1aad4bc0b729...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:44.269861ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047827/publication.txt
observed 3d23aa63094c433323dd7a7fe7488164...
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.