OpenTechnical

OT-2026-000013506

Publication integrity record

Six pad foam vacuum gripper, six outlet manifold, pump 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-2026-000013506) never changes.

Identity and time

Publication numberOT-2026-000013506 · never reused
Internal UUID01a0ae6d-6fcb-7941-b514-30c72984985f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013506
StatusPUBLIC

Content hashes

Canonical text784349459d18e86a3dc41f773f5fa89ea34d3a430d9c513577c0d645aac3be46
Markdowndd358cd97c8014490bad0c8c916fdb55dc41cba88a3c075f547fd4d9d36edb94
PDF
Publication page02e76c27260cd17c0a160f882883c985d18066cb640d3d76c4574f89dcef3f76
Manifest7c4ae9a846301c3695c6bf8477b2bf553f9c106cce6a90c1b98a4823a6028187

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
SignaturekuTSiQGrnId+/0Qy6h7yrJ95ZlgEjGnvZoV7OJ5vZolafG/KRCoMrrq4P77DbSIJgVXRzE2HDvjAewrDWQkoAQ==
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

2026-09-17T12:10:01.020694ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013506
observed 02e76c27260cd17c0a160f882883c985...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:00.998421ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013506/manifest.json
observed 7c4ae9a846301c3695c6bf8477b2bf55...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:00.977406ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013506/publication.md
observed dd358cd97c8014490bad0c8c916fdb55...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:00.958110ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013506/publication.txt
observed 784349459d18e86a3dc41f773f5fa89e...
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.