OpenTechnical

OT-2026-000005403

Publication integrity record

Vacuum cup gripper, four zone face, pump fed, sustained blow off after 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-2026-000005403) never changes.

Identity and time

Publication numberOT-2026-000005403 · never reused
Internal UUID01a0a937-eb7d-7a6b-b04c-788b8e863a50 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:56:49.408064Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005403
StatusPUBLIC

Content hashes

Canonical text941b10dc9e1cd6cabc4c827b3ccfae3c03297d6d1079b5f320740607fd1ceaa9
Markdownf14a79df568d3344f42b3f164602ffe9c6993208586dce0506a3ef95d95a2293
PDF
Publication pagef7be0784520f73ba61c902430d84ff396f64dcbbe93201649fd33518fa3418f2
Manifest2ec054a3a9998192b6e38bcafe79121faf028bd6f81a268795dbf0f2793e36c5

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
SignatureUB86w11VxCM1NQ0T6YaQot4KMN1Q2TM/Y6QxYFiijbiaTmRYxKSuwNeh6cFHrPqEvNHX/lHs8X5KVMOPRYs0Ag==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:07:02Z
batch OT-TS-2026-W38-011 · RFC 3161 token · inclusion proof
root 8f13af7374aef42943b7bbe6a279c57a...

Independent retrieval

2026-09-16T08:00:13.621904ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005403
observed f7be0784520f73ba61c902430d84ff39...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:13.490885ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005403/manifest.json
observed 2ec054a3a9998192b6e38bcafe79121f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:13.477579ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005403/publication.md
observed f14a79df568d3344f42b3f164602ffe9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:13.461459ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005403/publication.txt
observed 941b10dc9e1cd6cabc4c827b3ccfae3c...
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.