OpenTechnical

OT-2026-000047719

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, plant vacuum 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-2026-000047719) never changes.

Identity and time

Publication numberOT-2026-000047719 · never reused
Internal UUID01a0ae7f-c41f-7298-ad06-1ef8674f5082 · 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-2026-000047719
StatusPUBLIC

Content hashes

Canonical text19a2e53042242d52bc22d803f2954ce12f0ed0e5f0949f86dfe98376e53a763c
Markdown17f363956b1a025145dabaf1802ef1b0fc36d9bd9265e59bff16e6822b29c643
PDF
Publication pagedfda641ec8648c39479f2bd527f01fae15489e4847c9c630c7e630b1dcca9a1b
Manifestcf6a7a53985eba344eb420c26ceb65559fd70f1b6b2c20dd9d2dcc64abd15af2

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
SignatureL1BFUI3oP9w2QWSbNHD+mvrKOkw6X1A7nYWy5TNITb+H+xUpNT1PkDiqAk47IrVe4quXep6efVg461BfMwyHDQ==
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

2026-09-17T11:05:35.193924ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047719
observed dfda641ec8648c39479f2bd527f01fae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:35.175168ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047719/manifest.json
observed cf6a7a53985eba344eb420c26ceb6555...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:35.153742ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047719/publication.md
observed 17f363956b1a025145dabaf1802ef1b0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:35.131913ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047719/publication.txt
observed 19a2e53042242d52bc22d803f2954ce1...
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.