OpenTechnical

OT-2026-000004706

Publication integrity record

Vacuum cup gripper, per zone isolation, ejector fed, vented after set down, rubber cups

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-2026-000004706) never changes.

Identity and time

Publication numberOT-2026-000004706 · never reused
Internal UUID01a0a920-c1f8-7e57-b4c5-a00d4545d89e · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:31:31.451712Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004706
StatusPUBLIC

Content hashes

Canonical text32cc5604f68214aaaa229c609b02d90ae270ab6ea0b449822738cc9f828bc181
Markdown1fde9eea57552fe178646f2bcbb8a2413f3c2e843f3489000bb19aa622330afd
PDF
Publication pagedaeb3cd27057c22f6233648f1df7e3333278972832d06f0ea391bda610ed8031
Manifest80d12092b3b052964cb7369eacc146f67f7c0f73a7e56f57b065653548342972

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
Signature/4YBEfpSC6EcRUOklaKadZCCLVT1b2IkiivNwj45z+ehil8ba1MPkYgNuyREXHiNbzZ+hyz5DiJ65FLZOurvAQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:47:02Z
batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof
root e1b42dfa4cd0fb1e3e472afd2db961c2...

Independent retrieval

2026-09-16T07:40:27.620794ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004706
observed daeb3cd27057c22f6233648f1df7e333...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:27.486933ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004706/manifest.json
observed 80d12092b3b052964cb7369eacc146f6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:27.473690ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004706/publication.md
observed 1fde9eea57552fe178646f2bcbb8a241...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:27.461974ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004706/publication.txt
observed 32cc5604f68214aaaa229c609b02d90a...
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.