OpenTechnical

OT-2026-000065815

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, 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-2026-000065815) never changes.

Identity and time

Publication numberOT-2026-000065815 · never reused
Internal UUID01a0ae8e-46fb-70f3-8b6e-d22865e37e9c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:49:15.018480Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000065815
StatusPUBLIC

Content hashes

Canonical text13d80e7d4be15dd161001fdd31ee8784ff53cf1c0222ea252f25bc4067f52f55
Markdowna5bad2769b6a084990d86218db9e3170415a9927abaaa72709298e4b324d622c
PDF
Publication pagee5ba3ecb9cb47e5cd3e366aec0d522a3ebfc31c6c30d885fec42e2ac1f7d4047
Manifestd73def14300b04b193bdbec96c98999492c230342b5c6d134a2a0cdc54844877

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
SignatureXnepSLjzV8EPzUzI0loUvcEz0PnbA/IZR6YZLC7w0E/hK55iT3XOwX6mAPEV/i36T2inpfaF4pgYaLP6WSs4Bg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:34:15.603997ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000065815
observed e5ba3ecb9cb47e5cd3e366aec0d522a3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:34:15.587068ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000065815/manifest.json
observed d73def14300b04b193bdbec96c989994...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:34:15.571192ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000065815/publication.md
observed a5bad2769b6a084990d86218db9e3170...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:34:15.554978ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000065815/publication.txt
observed 13d80e7d4be15dd161001fdd31ee8784...
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.