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• Rules/Prizes

➥ Post Bitcoin price prediction for July 27th.
➥ Thread will be closed on July 18, 2025, 23:59 UTC
➥ You can make up to two predictions, but not earlier than 24 hours after the publication of the first prediction
➥ The one user with the closest predictions will get a prize of 0.001 BTC in Free Bets.
➥ The winner will be determined based on the Bitcoin price at 23:59 UTC (CMC).
➥ Once submitted, you cannot edit your post / icopress reserves the right to disqualify any prediction for any reason.

• Example

[1]: This offer is available to all players that have a valid CoinRoyale account  (email verified) and limited to one per household, IP address, device.
[2]: To qualify for a prize, you must have made a minimum real money deposit of 0.0005 BTC within the last 60 days.
[3]: Any predictions published within 48 hours before the designated date will not be taken into account.
[4]: Free Bet expire at 14 days / This has always been the terms of a "free" bet: only winnings are returned to player: (coinroyale/tos).

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• Rules/Prizes

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I’m looking for help verifying the legitimacy of a platform called Crypto Trade Union (website: cryptotradeunion.com). My investment is being held in escrow by this platform, and they are asking for transaction fees before they can release the funds. One of my concerns is I can’t find any trusted reviews or public information about them. Has anyone heard of this platform or dealt with something similar?
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Prototype: Sending Bitcoin Transactions via SMS using Raspberry Pi Relay Node

For the past months, I’ve been working on a functional prototype that allows sending BTC without an internet connection, using SMS and a Raspberry Pi. This solution could help in remote areas, blackouts, or censorship scenarios where data access is unavailable.

Objective

Build and test a working system to:

• Send BTC payment instructions via SMS from a basic phone or offline smartphone
• Use a Raspberry Pi relay node to process, sign, and broadcast the transaction
• Ensure basic security and confirmation via SMS
• Avoid dependency on internet-enabled mobile devices or UI interfaces

System Architecture

Sender Device (basic phone or smartphone without internet):  
Sends a structured SMS:  

Relay Node (Raspberry Pi):  

• Receives the SMS via a GSM modem
• Parses and validates the message using a custom Python script
• Uses Electrum CLI to sign and broadcast the transaction
• Returns the TXID via SMS for confirmation

Technical Summary

Hardware:  

• Raspberry Pi 4B (with Raspbian OS)
• GSM modem (e.g. Huawei E303, SIM800L)
• Active SIM card (Claro / Altice)
• Internet access via Wi-Fi or 5G dongle

Software:  

• Python 3
• gammu / python-gammu
• Electrum CLI (v4.4.6+)
• Custom Python script to manage parsing, validation, and signing

Key Benefits

This system works even with basic mobile phones and doesn’t require mobile data or a smartphone. It’s low-cost, easy to build, and I’ve personally tested it in real conditions. It provides a working method for sending BTC when other communication methods fail, using only SMS and a small computer.

Limitations

The private key is stored in a single node, which means if the Raspberry Pi is compromised, the funds could be stolen. The system also depends on GSM signal quality, so poor coverage will interrupt service. Each SMS has a cost, and if many transactions are done, it can become expensive. Inputting amounts and addresses manually increases the chance of human error. There’s no support yet for multisig or PIN validation per user. Fee estimation is basic, and UTXO handling is not optimized. The relay node must stay powered and online at all times.

Python Script (Prototype)

In Dominican Republic or wordwide, imagine that during a political or social crisis, the authorities decide to restrict or control internet access to limit citizen organization and the flow of information. These measures can affect digital financial services, leaving many people unable to send or receive money through common electronic means. In this situation, sending Bitcoin  via SMS using a Raspberry Pi relay node can be a viable solution to maintain the flow of funds. Anyone with a basic phone can send simple instructions via SMS to make secure payments or transfers, without needing direct internet connection. This type of technology will become increasingly necessary in the future, not only for crisis situations but also to guarantee financial freedom and resistance to censorship. That’s why I believe it’s important to start learning and sharing these tools now. This is my contribution to the community so that together we build more resilient and accessible systems.

Blog time on bitcointalk.org. Supplies to decentralization

Since I want to be inclusive I invite Don Pedro to join the thread along with Og.

This is simple enough I have built my average of pushups to 100 a day and we did pass 100k price.

So this will be walk up  100 steps of stairs a day and of course back down the 100 steps. Total of 200 steps.

we do it until we reach 200k price.

and of course continue to do your pushups.

This is on  off topic for a good reason the spirit of compromise which if we do it correctly allows us to get in better shape.

Now for people with no steps to be found this could be harder for you.

I would say make a small platform and step 100 times and step down 100 times.

I have a six step then landing then a six step

it is 12 steps up and 12 steps down it would take 8 flights up and 8 flights down to add to 96 and I would simply do a few more to go to 100.



I will post here and in the pushup thread hoping that the combined effort pushes us past 200k by Dec 31 2025.



So

200k,philipma1957,1,100,12-25-2024




this is a copy of dirty key boards format .

the 200k is the goal "…."……………………. 200k
the name next…………………………………….. philipma1957
how many days you did the steps……… 1
total steps …………………………………….……. 100
…
date …."…………………………………..………….. 12-25-2024


lets get in better shape and richer and make friend Og and Don Pedro

I am hitting the steps today.

at dirtykeyboard you do not have to script this. but it would be nice.




So at my bro-in-law’s. its a straight shot of 13 steps to climb up.

So 7 x up is 91 7x down is 91

then nine steps up  nine steps down (backwards for those nine for different muscle use)

I am almost 68 years old so today I did 110 pushups and climbed 100 steps up then down.

the pushups were

30
35
25
20

then drove to my bro-in-law 84 minels in 90 minutes very early today.

ate a ton of food.

then

100 steps up and down

will eat more food
do more steps
and then drive a longer time back home.


this will be a very full day for me.

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Some casinos will give you back good % of your net losses every week, but only if you keep playing for their tiered VIP system. Does the rebate really make us take smarter risks, or does it trick us into going after losses we would normally just walk away from?

Friends, the news background on the crypto market has been very active lately, and in a rather positive way, but not every good news is true. How does this affect your investments and strategy on the market? How to protect against fakes?