OpenTechnical

OT-2026-000015320

Publication integrity record

Single bellows cup vacuum gripper, pump fed, pulsed blow-off before set-down

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-2026-000015320) never changes.

Identity and time

Publication numberOT-2026-000015320 · never reused
Internal UUID01a0ae6d-ef49-7777-9e0e-285feaa92110 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:55.421510Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015320
StatusPUBLIC

Content hashes

Canonical text86ca2b429235d2b68bf053e3c2f127007a527bb3b7c0acaef5a15d3d71df0e90
Markdowna8059fa12a34d9861650702f0c945eb6d90e7291b7742a5e8ae5a4c3b703e2b3
PDF
Publication page1e335a8715a73e02d0a1ce6e15cb9a9498ae5df6847b6e3c7fa796ae14204cc1
Manifest9ddd3412a487248f99563b9d76d01c4a116b360f827911993c705dc78183f8c5

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
Signaturer8B1AmteutqhJImCzxFNHWkAdmVlYs/P3ErD2R0HYvGA/u1j3J+/pQyUUPR2eqQlCpfdnVs5gGqePF5vgfkIDA==
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

2026-09-17T12:06:00.978717ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015320
observed 1e335a8715a73e02d0a1ce6e15cb9a94...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:00.960842ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015320/manifest.json
observed 9ddd3412a487248f99563b9d76d01c4a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:00.940995ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015320/publication.md
observed a8059fa12a34d9861650702f0c945eb6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:00.920215ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015320/publication.txt
observed 86ca2b429235d2b68bf053e3c2f12700...
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.