OpenTechnical

OT-2026-000028225

Publication integrity record

Three cup vacuum gripper, three outlet manifold, three stage ejector, manifold pressure sensor, 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-2026-000028225) never changes.

Identity and time

Publication numberOT-2026-000028225 · never reused
Internal UUID01a0ae72-a521-7336-9340-ce9cd95d6988 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028225
StatusPUBLIC

Content hashes

Canonical text82f06eec3b84d179e38f449f4b3dc3798ecf7f2997928a6ac681ca16f22e87f2
Markdownbf2c098ffd6825936b6b8ac89e387c17323ee400bc810606cfdba8dae0fb6b39
PDF
Publication pageb3a2b7ad83410addc77bd8f98bf2901e9c8685a4987e174b9d82e792797c06ec
Manifest393c662fbc8050be3c841687f58df67900c53cb4eee1939b26abcc6873493534

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
Signaturev1n1sCDQLNeKsWCwo1gMxKnp2AGo6Od78jbdOeBnJq9kBAhMaxXUVj+Sb1rxDdJrPvgnrJA8KkL9dBYYvOGRDA==
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

2026-09-17T11:42:35.367745ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028225
observed b3a2b7ad83410addc77bd8f98bf2901e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:35.348600ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028225/manifest.json
observed 393c662fbc8050be3c841687f58df679...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:35.331768ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028225/publication.md
observed bf2c098ffd6825936b6b8ac89e387c17...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:35.316580ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028225/publication.txt
observed 82f06eec3b84d179e38f449f4b3dc379...
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.