Charla de Craig en Colombia grabada con móvil. A los 20:50 minutos empiezan las preguntas del público. A 30:50 habla sobre su asperger y sus dificultades sociales. A 38:38 pregunta de la federación de cannabis de Colombia... y mucho más:
https://youtu.be/or6M6Ooo8VA

Nuevo Meetup en #CryptoPlaza 17 de julio
LOOM Huertas, 11 MADRID
Comunidad amiga
Bitcoin SV (Valencia)
@RamonQuesadaT
@jaimexbt

https://twitter.com/cryptoplaza_es/status/1146528587710959617?s=21

Parece que es oficial que tenemos un minero nuevo en BSV.

"BTC.com is owned by Bitmain, which has had a contentious relationship with the blockchain space, in general, but in particular with BSV. The company’s former CEO, Jihan Wu, has routinely called out members of the BSV community and disparaged the project, but Bitmain removed him from the helm and things seem to have gotten a lot better at the company since his departure."

https://coingeek.com/btc-com-begins-mining-bsv-as-the-number-of-transactions-increases/

No puedo entender cómo todavía a día de hoy, éste tema del nodo NO minero, y la centralización de la minería en granjas especializadas, sigue siendo objeto de debate en la comunidad, al mas alto nivel!!!!, cuando a finales del 2008, sin nisiquiera liberar el software de Bitcoin, ya Satoshi vislumbra el futuro, y lo dice claro cristalino en un mail de la época.

"Mucho antes de que la red llegue a ser tan grande como eso, sería seguro para los usuarios usar la SPV Verificación de Pago Simplificada (sección 8 del White Paper) para verificar que no se produzca el doble gasto, lo que solo requiere tener la cadena de encabezados de bloque, o aproximadamente 12KB por día. Solo las personas que intentan crear nuevas monedas necesitarían ejecutar nodos de red (Nodo Minero). Al principio, la mayoría de los usuarios ejecutarían nodos de red (Nodo Minero), pero a medida que la red crece más allá de cierto punto, se dejaría cada vez más a especialistas con granjas de servidores de hardware especializado. Una granja de servidores solo necesitaría tener un nodo en la red y el resto de la LAN se conecta con ese nodo."

Bitcoin P2P e-cash paper
Satoshi Nakamoto satoshi at vistomail.com 
Sun Nov 2, 2008

"Long before the network gets anywhere near as large as that, it would be safe for users to use Simplified Payment Verification (section 8) to check for double spending, which only requires having the chain of block headers, or about 12KB per day. Only people trying to create new coins would need to run network nodes. At first, most users would run network nodes, but as the network grows beyond a certain point, it would be left more and more to specialists with server farms of specialized hardware. A server farm would only need to have one node on the network and the rest of the LAN connects with that one node."

https://www.metzdowd.com/pipermail/cryptography/2008-November/014815.html

Twetch - The interface to BitCoin
https://twetch.app/t/d42b6d2770b1b4425978f46be4ae9526cf47ead5d1a95db2811fbacac1e4cba4

Próximo Meetup de avalBit
Viernes, 26 de julio de 2019
De 18:30 hasta el 20:30
Las Naves, C/ de Juan Verdeguer 16, 46024 • Valencia
Entrada gratuita:

Mesa redonda de debate:
Es La moneda de Facebook (Libra) la alternativa corporativa a las criptos y al dinero Fiat?
Ponentes del debate:
- Manuel Sales
- Alfre Mancera
- José Antonio Bravo
- Enric Montesa
- Conduce el debate: Carlos Abreu

Al finalizar picoteo y cerveza cortesía de avalBit.org
Por favor para confirmar asistencia, regístrate en nuestro grupo de Meetup:
https://www.meetup.com/es-ES/ValenciaBitcoin/events/262892464/

5º Meetup Bitcoin Satoshi Vision en Valencia (Spain)
https://www.meetup.com/es-ES/BitcoinSV_Valencia/events/262610619/

Fecha: Sabado 13 de Julio 2019 a las 12h
Local: Coworking Valencia
Direccion: Calle Maestro Gozalvo, 23 Valencia 46005
Map: https://goo.gl/maps/adwdLrkJuwTQFkzr6

Entrada libre y gratuita

Algunos temas a tratar:
- Paymail (la identidad digital)
- “The Metanet Starts” by _unwriter
- Seguimiento del juicio Kleiman - Craig
- Mini Hackathon de Agosto en Barcelona.
- Preparación de curso de formación para iniciarse en la tecnología Blockchain.

con el patrocinio de la Bitcoin Assosiation BSV
https://bitcoinassociation.net

Acabo de recibir el rollup, así ya está casi todo listo para el próximo Meetup BSV en Valencia.
Creo que somos los primeros en todo el mundo despues de Londres, en tener un rollup de la Bitcoin Association!!!
www.bitcoinassociation.net

Dice un amigo que si sigo hablando de Craig voy a perder credibilidad, no se que pensar después de ver ésta gráfica de mi perfil de LinkedIn

"Currently there are over 130 cryptographers, developers and security architects, with decades of experience defending networks from nation-state attack who work at Guardtime.  

CEO and Co-founder Mike Gault has more than 20 years’ experience including stints in the military, academia, engineering and financial derivatives. Prior to Guardtime, he served as a Managing Director at Barclays Capital in Tokyo. Guardtime's CTO, Matthew Johnson, joined the company after performing due diligence on it for the US Department of Defense, which was keen to work with the business. The more he got involved with the company over the year 2012/13 the more he was convinced that what Estonia had built was indeed game-changing. He quit his job and moved to Estonia for the better part of a year to mature the technology roadmap."

https://www.digitalinsuranceagenda.com/96/guardtime-the-worlds-largest-blockchain-company/

A group of young Cuban students, enthusiastic about crypto, created a web service to buy bitcoins from the Caribbean island. The system of exchange for Cuban pesos, called Fusyona, is not automated and must be executed manually. To generate a purchase request, the interested party must send an e-mail detailing the amount of bitcoins desired, the province in which it is located and a telephone number.

The operation is executed through Fusyona's "agents", who must later meet with the buyer in one of the public areas with Internet via wifi. At that moment, the person hands over the cash and the public key of his wallet, and then receives the BTCs. The process culminates when the investor confirms that the transfer has taken place.

CryptoNoticias spoke with "Carlos" one of the creators of the service, who preferred to safeguard his true identity for security. The student revealed that the team consists of 4 people and an investor. When asked about the response they have obtained from Cubans on the purchase of bitcoins, the entrepreneur explained the following:

"In Cuba there is not much information about cryptocurrencies, it is a challenge for us to sell and at the same time explain to Cubans how they work. Even with these drawbacks, we have many interested users and buying bitcoins. We handle a volume of 0.2 BTC (US$ 1,300) on average per week. Now we are looking for advertising alternatives, such as the weekly package, that have a greater reach of the population." Carlos/Cuban Entrepreneur

Carlos assures that in Cuba he is trading with crypto, with some of his clients convinced of making a profit with the operations. The current minimum purchase is 150 Cuban Convertible Pesos (CUC), i.e. about 150 US dollars with a 10% fee charge per transaction. In case a user wants to buy a lower amount of bitcoins, his request will be considered as a group until the interested parties reach the established amount.

In relation to these aspects, Carlos explained that "the fee varies from 10%, it is not always fixed in that number. With the feedbacks we have obtained from users, we are negotiating that minimum amount. We simply stop assigning them an agent and carry out the transaction in CUC through magnetic cards, which allows us to lower that minimum level of CUC per transaction.

The group's vision is to become, in the future, Cuba's first crypto exchange house and add other cryptoassets to its offer. "We hope to achieve this by earning a good reputation with our customers and providing good service.

Dual Currency

In Cuba there are 2 official currencies: the Cuban Convertible Peso (CUC) and the Cuban Peso (CUP). The first began to circulate in 1994, is equivalent to the U.S. dollar and was designed for foreigners to use in the payment of goods or services on the island. The second is known as the national currency, because it is more popular among Cubans. The main difference between the two is that the convertible peso is equivalent to 24 Cuban pesos, which means that 1 Cuban peso is worth 24 times less than its monetary pair.

Although the parity of the convertible peso is tied to the 1:1 dollar, at the time of exchanging 100 dollars, for example, fees and a 10% lien are applied, which means that the person actually gets about 86 CUC. In relation to the service created for the purchase of bitcoins in Cuba, its promoters offer cryptos in exchange for the convertible peso.

At this point, it should be noted that, although the mechanism for buying BTCs has begun to work, there is mediation between the platform and the users. This additional step, which is eliminated by the nature of peer-to-peer operations, obeys the controls that exist on Internet access on the island, where few users have access to the network. The cost per hour to use Cuban public WiFi is 2 dollars, while a Cuban earns, on average, a monthly salary of 20 dollars.

Operations with bitcoins in Cuba began to register in July 2015. Three years ago Fernando Villar, founder of BitcoinCuba.org, received about $20 from Chris Groshong, CEO of the startup CoinStructive,