OpenTechnical

OT-2026-000017783

Publication integrity record

Four bellows cup vacuum gripper, four zone face, four 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-2026-000017783) never changes.

Identity and time

Publication numberOT-2026-000017783 · never reused
Internal UUID01a0ae6e-96fb-7d24-9bda-acd916d241e9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:38.350302Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000017783
StatusPUBLIC

Content hashes

Canonical text6c92c7128a6f3a1a5af7ccbd5165facf72fa29df3b9b332a8e6c742fbb24c9ac
Markdown925376521db1120c7f89b135660a97c256b4911358df671881b3c0f24ba453f3
PDF
Publication page6e1a202dab3edc5cfdabfb6b0f2c6cfca09d683559fd34245035a27e2fc45321
Manifest49fafcc23b04b2a72cbbc47d37422c061a39db2e491e5de0289eb66b596a7afe

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
SignatureCBCCyVh0TLk60K/qtHCkk12qNCjbIQ1B9By7WuI4i1ZAEcRxSvJ4UKhOCKOxMOjoTItEpseba/7D2OpXI2UlDg==
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

2026-09-17T12:01:44.655034ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017783
observed 6e1a202dab3edc5cfdabfb6b0f2c6cfc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:44.635057ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017783/manifest.json
observed 49fafcc23b04b2a72cbbc47d37422c06...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:44.614061ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017783/publication.md
observed 925376521db1120c7f89b135660a97c2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:44.595383ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017783/publication.txt
observed 6c92c7128a6f3a1a5af7ccbd5165facf...
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.