OpenTechnical

OT-2026-000011974

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, 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-2026-000011974) never changes.

Identity and time

Publication numberOT-2026-000011974 · never reused
Internal UUID01a0ae6d-1942-7db1-b867-3113c50d985b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:00.631271Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000011974
StatusPUBLIC

Content hashes

Canonical text931df77b4aca06d024514c0916ec3154760c48c404f4064e7a1519e56e8afe91
Markdown14eb75100cd20754aec2ee8467ec0e6b285690a20649d7c4b02f2f5a989c47ab
PDF
Publication pagece119fd65a176966c88c933c8e9f5fd43973d1e3b0bb71673e6f97a9eba35224
Manifest3a7a60f4a0f24f8ee11394d72995426c1e3e5bce5ee58f2d308a5b2896f06bff

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
SignatureEuwirVQ6IrtS7QmH17B5ZBbAm+W0D1Jx6RKLB5dlePJDoE+bT3MSFoMVboNtlNrjd14wcWxlLZcsamyLgT+8Dw==
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

2026-09-17T12:12:49.777873ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011974
observed ce119fd65a176966c88c933c8e9f5fd4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:49.758673ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011974/manifest.json
observed 3a7a60f4a0f24f8ee11394d72995426c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:49.741759ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011974/publication.md
observed 14eb75100cd20754aec2ee8467ec0e6b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:49.722946ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011974/publication.txt
observed 931df77b4aca06d024514c0916ec3154...
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.