OpenTechnical

OT-2026-000029128

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, single stage ejector, 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-2026-000029128) never changes.

Identity and time

Publication numberOT-2026-000029128 · never reused
Internal UUID01a0ae73-2aa0-7167-9090-129bb3a5b749 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029128
StatusPUBLIC

Content hashes

Canonical textf0d13d7f999842e53bc74dfae42bf8d071d4321d1a07b459688c385a8ee633c3
Markdown93da27d6125fe2c5583a123d68aea04d0e2ef586db82183e19a41d23d44db63c
PDF
Publication pagef793aedfffeee7d395b132afcc02d1e60ad08ded2c762afc0f3300efc9bc28e4
Manifest68d83dc7b7585f22b8b1a94358d347b482d99f8ab90e46b0ebe29d2cb44b7ca0

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
SignatureOJlsSOnCPLZ7X8UIQDV8UIHtkhQ2Nov7Bmup9fCVs4ha28zvkxZ9ZALq7xvmOYAb2mM3KyMcDpKZDORfggm+CA==
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

2026-09-17T11:39:36.703922ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029128
observed f793aedfffeee7d395b132afcc02d1e6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:36.685283ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029128/manifest.json
observed 68d83dc7b7585f22b8b1a94358d347b4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:36.667753ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029128/publication.md
observed 93da27d6125fe2c5583a123d68aea04d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:36.649911ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029128/publication.txt
observed f0d13d7f999842e53bc74dfae42bf8d0...
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.