This question shall be answered by the analysis of some data from the application coin-doubler.

How does coin-doubler work

This application generates profits in the cryptoscene by using the most advanced technology and everybody can benefit from it by "donations". Donations to coin-doubler are rewarded with twice the amount in the same token over an unspecified period of time, also as a gift.

Evaluation of a randomly selected donation

The user fairy-hot has donated 80.000 STEEM to coin-doubler with this transaction f131d69764dce61dffa86bd6978a60fc2a9c0580 on 06/01/2025 UTC.

List of the gifts

The table below lists the corresponding gifts which the user fairy-hot has received from coin-doubler.

#	Date	Gift	TX
1	06/02/2025	2.766 STEEM	42472db02a0dd4f001aa69861ac5eb99c53cac9a
2	06/03/2025	2.799 STEEM	47be9450cd48283b99eab9df2012f83d366eeb0b
3	06/04/2025	2.616 STEEM	b4696c10f52214e0a6172a602692eac0261f117a
4	06/05/2025	3.025 STEEM	d31aa61908da3afecfe79e42edc2812691a4c129
5	06/06/2025	2.566 STEEM	668e047269b0ad41006174a42e8d1bb15ebde7b2
6	06/07/2025	3.093 STEEM	9ae0106e08ec03e356689baf67a1a7fdf79ee91f
7	06/08/2025	3.050 STEEM	1b63f3d440c9142f1ef15cfb6d5700137bf7d797
8	06/09/2025	2.699 STEEM	2757d56ec31187ef7bf1cf6589ae97533a7667f9
9	06/10/2025	2.769 STEEM	8132fbe7d4f86d26652dcbdde6fa65278047b1b5
10	06/11/2025	2.904 STEEM	66ade316f110804baf7c258c532745ce0ea2db5c
11	06/12/2025	2.962 STEEM	d53d63edb42a86cf40773e1f040011939dc81bcb
12	06/13/2025	3.032 STEEM	346e1b9587c16298acd1ad2e9b1ee28cf36c07c4
13	06/14/2025	3.144 STEEM	6e4ea58fa65245bf36531a4154f63cefba101d69
14	06/15/2025	3.096 STEEM	244aec208d12c0646830e15ffa7dd9ae52e1a5a7
15	06/16/2025	3.195 STEEM	49105dadac14d8ada4439609911e3cfc86c73863
16	06/17/2025	3.099 STEEM	0f55d519cebf8bf1d11d32731879f62d9d84faeb
17	06/18/2025	2.487 STEEM	25962f7951cb5803912fa221d4133c98c2a9769a
18	06/19/2025	2.756 STEEM	1a82777178ad33a5cfcc228248e6b2561da0841b
19	06/20/2025	3.079 STEEM	b772c692d859e298fc2fb63a815a12bc9773858c
20	06/21/2025	3.017 STEEM	9195bfd0e7119d904f7828a6fa1879eb19385ea1
21	06/22/2025	2.550 STEEM	ee60c6738fc4e85da2aa9fc7d15a63a90b7379a6
22	06/23/2025	2.886 STEEM	ef9e2cf2862ce7da1982ab1c0335f61d943a3040
23	06/24/2025	2.697 STEEM	a17ce7021ec884216e366b83bd7853b08a638aef
24	06/25/2025	3.183 STEEM	1d6c3c6857608384e428f528e9cbfbe0580b5124
25	06/26/2025	2.429 STEEM	e8fa3860b7141e1f5b8d0219d3f85039bff38f82
26	06/27/2025	2.455 STEEM	57a6c7268ae46699997db01c4c2e725b056838cc
27	06/28/2025	2.812 STEEM	051a19bb57cfcc09b06d4dbfb7e88027f414c6f0
28	06/29/2025	2.522 STEEM	e2cd58d96200e3c0f642a1a5fe4fc8fd6bd947e6
29	06/30/2025	2.916 STEEM	2297a4bebd93b19113e4e3974c84bf2ef71b3cd5
30	07/01/2025	2.612 STEEM	2f90170c36139d39aa53aab2f401dfacf7d70450
31	07/02/2025	2.827 STEEM	9f68205f7efda3fe2551655472c688410161268e
32	07/03/2025	3.031 STEEM	440c7ab351aa883a34edf57c3e0203ae2d24ebd5
33	07/04/2025	2.865 STEEM	fb3cd921370334fd7eab1d680b717c5383158953
34	07/05/2025	2.772 STEEM	050e8c437540abba926dc70dd76ec3e3dbc44039
35	07/06/2025	2.638 STEEM	e49b85f711a26b1b2a7fe603529b988bbcdf4c6f
36	07/07/2025	2.909 STEEM	09a43863ad2b786bbac9f6aec0d7210781598dfe
37	07/08/2025	2.737 STEEM	ee5675c3564f1061ce46cf761126b54be229e35a
38	07/09/2025	2.737 STEEM	606a0dd54f03ba2af78325a2e121baddcabde0a8
39	07/10/2025	2.877 STEEM	27f9a0595aedaf617706b357bb4ac49c2e89c7b4
40	07/11/2025	2.998 STEEM	a34d99885fe2b464dcccb6761b84ce04fc13657e
41	07/12/2025	2.968 STEEM	0d8f8044904e1c2495d471d229c4e613fa83fbb0
42	07/13/2025	2.984 STEEM	171b4440246cdbe8b4eac2d97bdcc06e990d3c87
43	07/14/2025	2.665 STEEM	6ca1ea75e9a819fca3122fb4af364d4d69521581
44	07/15/2025	2.881 STEEM	03a207fa913176184495cba228eed1de7dbfaa51
45	07/16/2025	2.991 STEEM	4b87f7e5328ed7f4430fed3c3c2170fc0ade6371
46	07/17/2025	2.659 STEEM	7fe54313efce41070a2bdb097ed9b99ea2b9df34
47	07/18/2025	2.917 STEEM	95da3ac04543cd091f34f93499999b48a3eaf643
48	07/19/2025	2.744 STEEM	b287ce548a0fb456ee10c0b08a9b18a18d7942fd
49	07/20/2025	2.742 STEEM	b7e5916dd72eb9a2f6ebf2cb4f1bf4141d64c16b
50	07/21/2025	2.910 STEEM	4820208809af973154b38241245ee16a6ee47e83
51	07/22/2025	3.064 STEEM	df849cdef2f27dc024203b6828b8bdba5b849e76
52	07/23/2025	3.115 STEEM	d06d88e89cbeda17ec709e4a8c995787361146e7
53	07/24/2025	3.059 STEEM	8635f4f2af34dae1687cb8c92b9734b15ccaf713
54	07/25/2025	2.420 STEEM	76d52a50166fdb73ca012949765245e4ee14e146
55	07/26/2025	2.648 STEEM	a00856dbbd95fe3f776f503270f2aa39100e8cd3
56	07/27/2025	3.164 STEEM	6aae53b3591abaf15c7367c01e92e429a6351aa9
57	07/28/2025	0.462 STEEM	97f1e497537373da1be29dec1d7d2d8869ad2f3e

Total: 160.000 STEEM

Summary

The user fairy-hot has been rewarded with twice the amount of the "donation" within 57 days.

Technical Analysis for STEEM

As the application coin-doubler has the potential to attract numerous investors, STEEM's price is expected to rise.

Technical Analysis for STEEM crypto currency

Boost My Wealth Challenge

If you want to participate from the Steem ecosystem's success, you can do so right now by following a few simple steps.

All author reward from this account will be paid out for an indefinite period of time to 8 participants per comment as Beneficiary Reward.

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Copy this link https://steemit.com/@abandi and invite your friends to the Steem Community via it on the social networks you use. Below is a template:
If you have been wondering where I have been spending most of my time lately, I'm studying the many opportunities to achieve my Financial Prosperity presented by https://steemit.com/@abandi, and I'm working through the given steps.
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Type in abandi and click "SET PROXY". Currently this account is voting for the following witnesses as they are the ones who can ensure the safe operation of the Steem blockchain: beargame, cryptoking777, dev.supporters, dlike, enjoylondon, exnihilo.witness, future.witness, hinomaru-jp, hoasen, inwi, juddsmith079, justyy, leverfile, maiyude, matreshka, menacamel, parse, protoss20, rlawlstn123, rnt1, roadofrich, roundblocknew, smt-wherein, steem-agora, steem-dragon, steem-supporter, steem.history, upeross and upvu.witness.
Invest for your bright future by buying some STEEM regularly and only selling some of the profit if necessary. (Think about the power of compound interest.)
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Beneficiaries of this post

Following users will receive 12.5% from the Author Reward each: ashleycass, dallasspohnz, doriclark, funnysubcontinen, milloretblog, petitponey, sameer01 and scarlettzion.

Information for beneficiaries, your Upvote on this post will earn you an additional 12.5% Beneficiary Reward to your Curation Reward.

Users on the radar for upcoming Beneficiary Rewards

Following users have also appeared on the radar: boda12, flipidot, jubayer95, lalit06, ledaris6.tagai, mjandah, nedoma87.tagai, nimeger9.tagai, nonomev36.tagai, pifayaf5.tagai, piwepi8.tagai, princesssal, quaxst, ripon009, sahara.azure, sepitem7.tagai, sigeba31.tagai, vayon15.tagai, xebiwa80.tagai and yulsuf.

The decision has been difficult as always, but maybe it will work out in the next rounds. You get mentioned so that you at least get the attention of the followers. You have contributed to the Steem ecosystem's success as well, thank you.