Tutorials:Read Contract - Revision history

Mediawiki: /* Read Contract */

2026-01-13T04:15:00Z

Read Contract

← Older revision		Revision as of 06:15, 13 January 2026
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	By clicking in the "contract" tab, and then "read code" we can get some information from the contract itself:		By clicking in the "contract" tab, and then "read code" we can get some information from the contract itself:

	In the field number 4: Initial_Reward field.		In the field number 4: '''Initial_Reward field.'''
	The initial reward was 168 Spring tokens, but the number is written with 18 zeroes because it is given in "Wei" units.		The initial reward was 168 Spring tokens, but the number is written with 18 zeroes because it is given in "Wei" units.

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	[[File:Smart012.jpg\|800px]]		[[File:Smart012.jpg\|800px]]

	In the field 18: we see the result of calling "Get Mining Reward" method, and it gives the current number of tokens per reward.		In the field 18: we see the result of calling '''Get Mining Reward''' method, and it gives the current number of tokens per reward.

	~~Other interesting field is number 29: Tokens Minted, showing how many tokens have been minted so far~~.

			Other interesting field is number 29: '''Tokens Minted''', showing how many tokens have been minted so far.

	=Minting Tokens=		=Minting Tokens=

Mediawiki at 04:14, 13 January 2026

2026-01-13T04:14:11Z

← Older revision		Revision as of 06:14, 13 January 2026
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	''Wei is the smallest denomination of Ether (ETH) on the Ethereum network, named after cryptographer Wei Dai; one Ether equals one quintillion (10¹⁸) Wei, making Wei essential for precise transaction fees (gas) and microtransactions, similar to how a Satoshi is the smallest unit of Bitcoin. It allows for granular calculations, preventing rounding errors in the complex operations of smart contracts and decentralized finance.''		''Wei is the smallest denomination of Ether (ETH) on the Ethereum network, named after cryptographer Wei Dai; one Ether equals one quintillion (10¹⁸) Wei, making Wei essential for precise transaction fees (gas) and microtransactions, similar to how a Satoshi is the smallest unit of Bitcoin. It allows for granular calculations, preventing rounding errors in the complex operations of smart contracts and decentralized finance.''

			[[File:Smart012.jpg\|800px]]

	In the field 18: we see the result of calling "Get Mining Reward" method, and it gives the current number of tokens per reward.		In the field 18: we see the result of calling "Get Mining Reward" method, and it gives the current number of tokens per reward.
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	Other interesting field is number 29: Tokens Minted, showing how many tokens have been minted so far.		Other interesting field is number 29: Tokens Minted, showing how many tokens have been minted so far.

	~~[[File:Smart012.jpg\|800px]]~~

	=Minting Tokens=		=Minting Tokens=

Mediawiki: /* Read Contract */

2026-01-13T02:58:02Z

Read Contract

← Older revision		Revision as of 04:58, 13 January 2026
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	Wei is the smallest denomination of Ether (ETH) on the Ethereum network, named after cryptographer Wei Dai; one Ether equals one quintillion (10¹⁸) Wei, making Wei essential for precise transaction fees (gas) and microtransactions, similar to how a Satoshi is the smallest unit of Bitcoin. It allows for granular calculations, preventing rounding errors in the complex operations of smart contracts and decentralized finance		''Wei is the smallest denomination of Ether (ETH) on the Ethereum network, named after cryptographer Wei Dai; one Ether equals one quintillion (10¹⁸) Wei, making Wei essential for precise transaction fees (gas) and microtransactions, similar to how a Satoshi is the smallest unit of Bitcoin. It allows for granular calculations, preventing rounding errors in the complex operations of smart contracts and decentralized finance.''

Mediawiki: /* Read Contract */

2026-01-13T02:57:28Z

Read Contract

← Older revision		Revision as of 04:57, 13 January 2026
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	By clicking in the "contract" tab, and then "read code" we can get some information from the contract itself:		By clicking in the "contract" tab, and then "read code" we can get some information from the contract itself:

	~~Click on Read Contract and see~~ the field number 4: Initial_Reward field.		In the field number 4: Initial_Reward field.
	The initial reward was 168 Spring tokens, but the number is written with 18 zeroes because it is given in "Wei" units.		The initial reward was 168 Spring tokens, but the number is written with 18 zeroes because it is given in "Wei" units.

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	Wei is the smallest denomination of Ether (ETH) on the Ethereum network, named after cryptographer Wei Dai; one Ether equals one quintillion (10¹⁸) Wei, making Wei essential for precise transaction fees (gas) and microtransactions, similar to how a Satoshi is the smallest unit of Bitcoin. It allows for granular calculations, preventing rounding errors in the complex operations of smart contracts and decentralized finance		Wei is the smallest denomination of Ether (ETH) on the Ethereum network, named after cryptographer Wei Dai; one Ether equals one quintillion (10¹⁸) Wei, making Wei essential for precise transaction fees (gas) and microtransactions, similar to how a Satoshi is the smallest unit of Bitcoin. It allows for granular calculations, preventing rounding errors in the complex operations of smart contracts and decentralized finance

	In the field 18 we see the result of calling "Get Mining Reward" method, and it gives the current number of tokens per reward. Other interesting field is number 29: Tokens Minted, showing how many tokens have been minted so far.
			In the field 18: we see the result of calling "Get Mining Reward" method, and it gives the current number of tokens per reward.

			Other interesting field is number 29: Tokens Minted, showing how many tokens have been minted so far.

	[[File:Smart012.jpg\|800px]]		[[File:Smart012.jpg\|800px]]

Mediawiki at 02:55, 13 January 2026

2026-01-13T02:55:30Z

← Older revision		Revision as of 04:55, 13 January 2026
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	[[File:Smart01.jpg\|800px]]		[[File:Smart01.jpg\|800px]]

	In "Overview" we see that the contract does not hold ETH, and idealy should not hold tokens. But at time of this writing it shows 1 token in holdings. This is most likely spam sent to addresses as advertising. And quite often to try to scam people, so be careful with these.		In '''Overview''' we see that the contract does not hold ETH, and idealy should not hold tokens. But at time of this writing it shows 1 token in holdings. This is most likely spam sent to addresses as advertising. And quite often to try to scam people, so be careful with these.

	~~In the "More Info" tab we see the "Contract Creator" address, and a link to the Token tracker page that combines:~~

	~~On-chain data (supply~~, ~~holders, transfers, contract, decimals)~~		In the '''More Info''' tab we see the "Contract Creator" address, and a link to the '''Token tracker''' page that combines:

	Off-chain / reference data (token name/symbol, links, sometimes reputation indicators)
			* On-chain data (supply, holders, transfers, contract, decimals)

			* Off-chain / reference data (token name/symbol, links, sometimes reputation indicators)
	in a single token-focused dashboard.		in a single token-focused dashboard.


	We have many tabs like: Transactions, Internal Transactions, Token Transfers, etc. We will look at the contract tab and get some information from the contract.		We have many tabs like: Transactions, Internal Transactions, Token Transfers, etc. We will look at the contract tab and get some information from the contract.

Mediawiki: /* Minting Tokens */

2026-01-13T02:50:38Z

Minting Tokens

← Older revision		Revision as of 04:50, 13 January 2026
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	=Minting Tokens=		=Minting Tokens=

	The Transactions tab lists the normal, signed transactions that directly call the contract (usually from a wallet or Externally Owned Account). An external account can call the Mint function of the contract, but this is rarely happening because the tokens are mined trough mining pools~~, and they do not appear as normal transactions~~. The Mining Pool smart contract talks internally with the token contract, and when a smart contract performs an action it sends a log that appears in the events tab.		The Transactions tab lists the normal, signed transactions that directly call the contract (usually from a wallet or Externally Owned Account). An external account can call the Mint function of the contract, but this is rarely happening because the tokens are mined trough mining pools. The Mining Pool smart contract talks internally with the token contract, and when a smart contract performs an action it sends a log that appears in the events tab.


	The records of token mint appear in the "Events" tab.		The records of token mint appear in the "Events" tab.


			=Exercise:=

	Click on the events tab and find the latest MINT transaction:		Click on the events tab and find the latest MINT transaction:

Mediawiki: /* Minting Tokens */

2026-01-13T02:45:54Z

Minting Tokens

← Older revision		Revision as of 04:45, 13 January 2026
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	=Minting Tokens=		=Minting Tokens=

	The Transactions tab lists the normal, signed transactions that directly call the contract (usually from a wallet or Externally Owned Account). An external account can call the Mint function of the contract, but this is rarely happening because the tokens are mined trough mining pools, and they do not appear as normal transactions. The records of token ~~creation~~ appear in the "Events" tab.		The Transactions tab lists the normal, signed transactions that directly call the contract (usually from a wallet or Externally Owned Account). An external account can call the Mint function of the contract, but this is rarely happening because the tokens are mined trough mining pools, and they do not appear as normal transactions. The Mining Pool smart contract talks internally with the token contract, and when a smart contract performs an action it sends a log that appears in the events tab.


			The records of token mint appear in the "Events" tab.

Mediawiki: /* Minting Tokens */

2026-01-13T02:42:58Z

Minting Tokens

← Older revision		Revision as of 04:42, 13 January 2026
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	The Transactions tab lists the normal, signed transactions that directly call the contract (usually from a wallet or Externally Owned Account). An external account can call the Mint function of the contract, but this is rarely happening because the tokens are mined trough mining pools, and they do not appear as normal transactions. The records of token creation appear in the "Events" tab.		The Transactions tab lists the normal, signed transactions that directly call the contract (usually from a wallet or Externally Owned Account). An external account can call the Mint function of the contract, but this is rarely happening because the tokens are mined trough mining pools, and they do not appear as normal transactions. The records of token creation appear in the "Events" tab.

Mediawiki: /* Minting Tokens */

2026-01-13T02:42:41Z

Minting Tokens

← Older revision		Revision as of 04:42, 13 January 2026
Line 40:		Line 40:
	The Transactions tab lists the normal, signed transactions that directly call the contract (usually from a wallet or Externally Owned Account). An external account can call the Mint function of the contract, but this is rarely happening because the tokens are mined trough mining pools, and they do not appear as normal transactions. The records of token creation appear in the "Events" tab.		The Transactions tab lists the normal, signed transactions that directly call the contract (usually from a wallet or Externally Owned Account). An external account can call the Mint function of the contract, but this is rarely happening because the tokens are mined trough mining pools, and they do not appear as normal transactions. The records of token creation appear in the "Events" tab.

	Only the latest 25 events appear, and you can see some Mint events. Although Seasonal Tokens rewards are issued every 10 minutes on average, in the sense that every 10 minutes a solution to the proof of work is found, the mint function is not called every 10 minutes. The mining pools collect many solutions and submit only one mint call every few hours to save on gas fees.


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	[[File:MintTransaction.png\|800px]]		[[File:MintTransaction.png\|800px]]

			Only the latest 25 events appear, and you can see some Mint events. Although Seasonal Tokens rewards are issued every 10 minutes on average, in the sense that every 10 minutes a solution to the proof of work is found, the mint function is not called every 10 minutes. The mining pools collect many solutions and submit only one mint call every few hours to save on gas fees.

Mediawiki at 02:42, 13 January 2026

2026-01-13T02:42:04Z

← Older revision		Revision as of 04:42, 13 January 2026
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	Only the latest 25 events appear, and you can see some Mint events. Although Seasonal Tokens rewards are issued every 10 minutes on average, in the sense that every 10 minutes a solution to the proof of work is found, the mint function is not called every 10 minutes. The mining pools collect many solutions and submit only one mint call every few hours to save on gas fees.		Only the latest 25 events appear, and you can see some Mint events. Although Seasonal Tokens rewards are issued every 10 minutes on average, in the sense that every 10 minutes a solution to the proof of work is found, the mint function is not called every 10 minutes. The mining pools collect many solutions and submit only one mint call every few hours to save on gas fees.

	In the ~~next tutorial~~ [[ ~~Tutorials~~:~~Mint_Transaction~~ \| ~~Mint Transaction~~]] ~~we will review a mint transaction.~~
			Click on the events tab and find the latest MINT transaction:

			[[File:MintTransaction.png\|800px]]