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Electrum coin jewelry8/6/2023 A ring dated to the Amarna Period depicting Shu and Tefnut illustrates a rare occasion when an Egyptian goldsmith added a significant amount of copper to a natural gold-silver alloy to attain a reddish hue ( 26.7.767). In fact, the pendant contains gold and silver in nearly equal amounts and is therefore electrum, a natural alloy of gold containing more than 20 percent silver, as defined by the ancient Roman author, naturalist, philosopher, and historian Pliny the Elder in his Naturalis historia. The color of a metal is affected by its composition: gradations in hue that range between the bright yellow of a central boss that once embellished a vessel dating to the Third Intermediate Period ( 30.8.371) and the paler grayish yellow of a Middle Kingdom uraeus pendant ( 26.8.81) are due to the natural presence of lesser or greater amounts of silver. The gold used by the Egyptians generally contains silver, often in substantial amounts, and it appears that for most of Egypt’s history gold was not refined to increase its purity. Gold jewelry intended for daily life or use in temple or funerary ritual continued to be produced throughout Egypt’s long history. these are mostly beads and other modest items used for personal adornment. The hieroglyph for gold-a broad collar-appears with the beginning of writing in Dynasty 1, but the earliest surviving gold artifacts date to the preliterate days of the fourth millennium B.C. In addition to the resources of the Eastern Desert, Egypt had access to the riches of Nubia, which is reflected in its ancient name, nbw (the Egyptian word for gold). If you know how bitcoin transactions works and what UTXO are, probably you prefer do your own coin selection manually based on the needs of a specific transaction.Egypt is a land rich in gold, and ancient miners employing traditional methods were thorough in their exploitation of economically feasible sources. the Coins tab is hidden by default on Electrum). There are multiple goal you may want achieve with a coin selection strategy and there is no one strategy that solves all problems, so wallets adopt different strategies depending on their priorities but these strategy are meant for unskilled user or user that don't care these things (eg. Is there a disadvantage or risk to doing this? I'm thinking there mustīe, otherwise Electrum would just do it automatically No, you are right, if you wish focus more on fee minimization instead of privacy, you can achieve better result doing so manually than rely on the Electrum coin control policy. This looks to me as though I can make the same transaction and incur a Third, it penalizes change that is too big. Second, it penalizes change that is quite different to the sent amount. Would come from reusing that address' remaining UTXOs. Reduce blockchain UTXO bloat, and reduce future privacy loss that Information leakage about sender holdings. This is from the Electrum source code and explain this choice: Attempts to better preserve user privacy.įirst, if any coin is spent from a user address, all coins are.Ĭompared to spending from other addresses to make up an amount, this reduces I could understand needing two inputs to the transaction if x was more than the amount associated with each one of my two "output points", but it isn't.Įlectrum used both UTXO, even if only one was needed, to protect your privacy albeit at the expense of higher fee. Am I missing something? Is there a disadvantage or risk to doing this? I'm thinking there must be, otherwise Electrum would just do it automatically. This looks to me as though I can make the same transaction and incur a smaller fee by using "coin control". If I start to make the same payment, the "Advanced" dialog now only shows one input and the transaction size is 226 bytes. If I go to the Coins tab, right click on one of the two "output points" and choose "Spend", Electrum shows a green banner saying "Coin control active". If go to the Send tab and start to make a payment to an address, then click "Pay." and then "Advanced", I can see two inputs, which seem to correspond to the two "output points" in the Coins tab and show the same amounts. Both of these show an amount much larger than x BTC. My Electrum wallet shows two "output points" in the Coins tab (with the same address).
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