OpenTechnical

OT-2026-000049568

Publication integrity record

Single bellows cup vacuum gripper, two stage ejector, supply line pressure sensor, pulsed 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-2026-000049568) never changes.

Identity and time

Publication numberOT-2026-000049568 · never reused
Internal UUID01a0ae81-8f7d-7ed3-b617-53b4042e8448 · 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-2026-000049568
StatusPUBLIC

Content hashes

Canonical text7c337a422e03d639372d13e055149aa45f1ff39f41f4bd115f00a19132b15303
Markdown9b34421f9b1e49940ba52434f7f503b19de1770e76e15bc89361bdf1f8313922
PDF
Publication pagee59ae7cb8ec6f64ed2fbc93f243fbff89dc8266e6d531c90a3c07ffd497ecd14
Manifest8d4665ee69c3c1dbd94524ace0f3ca4ac86e0e2d1a1b7cf0d4dbe5e669177bca

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
Signaturel3eWagpCKruYTR8pms+H1+IuVSoZwlsjLm89+pc7jWRN1oKJJx8q7hTJa34njjfci4UR8A4G+tkOXMIvIyaCDw==
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

2026-09-17T11:02:31.990619ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049568
observed e59ae7cb8ec6f64ed2fbc93f243fbff8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:31.970883ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049568/manifest.json
observed 8d4665ee69c3c1dbd94524ace0f3ca4a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:31.948483ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049568/publication.md
observed 9b34421f9b1e49940ba52434f7f503b1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:31.927597ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049568/publication.txt
observed 7c337a422e03d639372d13e055149aa4...
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.