Verso una regolamentazione dei contratti intelligenti: particolare riferimento al settore finanziario

Esta tesis doctoral aborda un tema complejo y de actualidad. Complejo, porque no es posible estudiarlo desde un punto de vista jurídico, sin un conocimiento previo de la tecnología subyacente - el blockchain. Y de actualidad, porque esta tecnología ya ha tenido un profundo impacto en el sector financiero en general, coincidiendo con una tendencia reguladora en este campo que no tiene precedentes normativos en los que basarse. El mundo financiero, el derecho bancario, el derecho de valores y los contratos comerciales se enfrentan a retos que no se pueden ignorar. Este trabajo de investigación aborda esta tecnología desde una perspectiva jurídica, valorando en qué medida el ordenamiento jurídico se está adaptando al ritmo exigido; en qué medida el régimen jurídico vigente ofrece soluciones y puede aplicarse, con ligeras adaptaciones, a esta nueva realidad económico-comercial; y, por último, cuáles son los elementos y características diferenciales de las aplicaciones de la tecnología blockchain, que deben tenerse en cuenta para una adecuada regulación de las mismas, que responda a los problemas que plantean. Conocer los beneficios, riesgos y ventajas son elementos esenciales a considerar en el proceso de regulación, ya iniciado y guiado por la UE, en su voluntad de apostar por la innovación digital en la economía de la Eurozona.

Deep geometry of subduction below the Andean belt of Colombia as revealed by seismic tomography

In this study new tomographic models of Colombia were calculated. I used the seismicity recorded by the Colombian seismic network during the period 2006-2009. In this time period, the improvement of the seismic network yields more stable hypocentral results with respect to older data set and allows to compute new 3D Vp and Vp/Vs models. The final dataset consists of 10813 P- and 8614 S-arrival times associated to 1405 earthquakes. Tests with synthetic data and resolution analysis indicate that velocity models are well constrained in central, western and southwestern Colombia to a depth of 160 km; the resolution is poor in the northern Colombia and close to Venezuela due to a lack of seismic stations and seismicity. The tomographic models and the relocated seismicity indicate the existence of E-SE subducting Nazca lithosphere beneath central and southern Colombia. The North-South changes in Wadati-Benioff zone, Vp & Vp/Vs pattern and volcanism, show that the downgoing plate is segmented by slab tears E-W directed, suggesting the presence of three sectors. Earthquakes in the northernmost sector represent most of the Colombian seimicity and concentrated on 100-170 km depth interval, beneath the Eastern Cordillera. Here a massive dehydration is inferred, resulting from a delay in the eclogitization of a thickened oceanic crust in a flat-subduction geometry. In this sector a cluster of intermediate-depth seismicity (Bucaramanga Nest) is present beneath the elbow of the Eastern Cordillera, interpreted as the result of massive and highly localized dehydration phenomenon caused by a hyper-hydrous oceanic crust. The central and southern sectors, although different in Vp pattern show, conversely, a continuous, steep and more homogeneous Wadati-Benioff zone with overlying volcanic areas. Here a "normalthickened" oceanic crust is inferred, allowing for a gradual and continuous metamorphic reactions to take place with depth, enabling the fluid migration towards the mantle wedge.