OpenTechnical

OT-2026-000087403

Publication integrity record

Four cup vacuum gripper, four zone face, six outlet manifold, pump fed, sustained 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-2026-000087403) never changes.

Identity and time

Publication numberOT-2026-000087403 · never reused
Internal UUID01a0ae9a-cd50-79d7-8435-2f1c5c73645d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087403
StatusPUBLIC

Content hashes

Canonical texta9cf563229d7e04425bd00cd955eed8e474a9b2ad3a3d6b79590632526ff1bb4
Markdownf5060f175fa636ba57fedae86c1f2cadb67dd73c2a9791976a0774461bf3f361
PDF
Publication page192b8ee49a6cc2ea481d71124cb2ffa41b8d87e7cc47ae070854f0171eed7796
Manifesteb29da5c47a0859b3a3be2838e7379ad3a70114b5bd0f227c3fe0836cd2131dc

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/9vCMcJJiDVcuJgIo5iLLq6NkHdkQbcjYRJBLMkL1vG+5j9D2cSyIY61d09kGYVC9ow4ICWPW46PeDe2AU/pAA==
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

2026-09-17T09:50:43.013562ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087403
observed 192b8ee49a6cc2ea481d71124cb2ffa4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:42.996577ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087403/manifest.json
observed eb29da5c47a0859b3a3be2838e7379ad...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:42.978213ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087403/publication.md
observed f5060f175fa636ba57fedae86c1f2cad...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:42.960680ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087403/publication.txt
observed a9cf563229d7e04425bd00cd955eed8e...
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.