OpenTechnical

OT-2026-000049417

Publication integrity record

Three cup vacuum gripper, three outlet manifold, plant vacuum fed, manifold pressure sensor, sustained blow-off after 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-2026-000049417) never changes.

Identity and time

Publication numberOT-2026-000049417 · never reused
Internal UUID01a0ae81-8f7b-7e62-bd41-1651826f2d25 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049417
StatusPUBLIC

Content hashes

Canonical text90edafd9a72f92d232e41ee0208bc96de8da6952403648aebc1da06f6ea23a76
Markdownb667ac0bb4a56383117176a4e4abe0fe28d5a17b622aee9dc433dc2ddbaf73e1
PDF
Publication pagefbbc5317a0fa75e090ac1a6befd7db43dd5bb9c7242af84e73e6c56e6f8df440
Manifest5ea67fdad77f32190b06cf73936679803ff8f331e960b42d7369e7329c08c96f

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
Signature3fWvQ6F9qH6ZktCuXguDuSd0qp+VgrLjJPGV+wJ2mcTgl19w9jdH46+46FvPZz0hKybHVR04rRV3cL12YbeiDw==
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

2026-09-17T11:02:14.419048ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049417
observed fbbc5317a0fa75e090ac1a6befd7db43...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:14.400761ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049417/manifest.json
observed 5ea67fdad77f32190b06cf7393667980...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:14.382926ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049417/publication.md
observed b667ac0bb4a56383117176a4e4abe0fe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:14.366496ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049417/publication.txt
observed 90edafd9a72f92d232e41ee0208bc96d...
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.