token-balance

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Token Balance

Examples from our RPC are used. If you want to look at information about archival nodes (more than 2 days ago), please use archival prefix in your URL (e.g. https://archival-rpc.mainnet.near.org) In this article, we always use POST methods to the same URL https://archival-rpc.mainnet.near.org. Body:

{
  "jsonrpc": "2.0",
  "id": "dontcare",
  "method": "EXPERIMENTAL_tx_status",
  "params": ["8uxq5BAC4zZL4Set7gtraqZSWduYXRUiNggpKhWmBnzK", "nf-finance.near"]
}

Every account has liquid balance (called amount) and stake (called locked). All calculation in tables are in yoctonear.

Total supply is the amount of tokens in the whole system. Each example is selected at the moment when no other changes is performed in the blockchain, so the only example could affect total supply.

Why does my balance change?

There are different scenarios why the amount of tokens could change on the account. Let’s look at it on real examples.

Each example (except rewarding) contains fees user pays for the operation. You could read about fees calculation here.

Transfer of tokens

https://explorer.mainnet.near.org/transactions/6gUVYsdAsStzU5H2AyW7bxAdEL4RvJv5PL3b8DRnPVED

pine.near sent 1.64234 tokens to taka.near

block height pine.near amount taka.near amount total supply explanation
32786820 1997461904089428600000000 17799799178272291100000000 1020393325841554327182410255742095 initial state
32786821 355076598029241100000000 17799799178272291100000000 1020393325841554327182410255742095 pine.near lost some tokens for transferring and fees (with a margin, some tokens will be returned)
32786822 355076598029241100000000 19442139178272291100000000 1020393325841532008926160255742095 taka.near received exactly 1.64234 tokens. Total supply was deducted for making receipt from transaction
32786823 355077267576928600000000 19442139178272291100000000 1020393325841509690669910255742095 pine.near received a change. Total supply was deducted for executing receipt
32786824 355077267576928600000000 19442139178272291100000000 1020393325841509690669910255742095 final state

For such kind of transactions, sender pays 2 fees: for making receipt from transaction; for executing receipt.

We also have receipt for returning a change: it is made without fee.

For this example, final cost of transferring tokens was 22318256250000000000 * 2 / 10^24 = 0.0000446365125 Near Tokens.

Creating the account

https://explorer.mainnet.near.org/transactions/Hant2anxPJHm3sh8ncc5AWn5VpXTmwq6iyEumVoQcUJP

nearcrowd.near created account app.nearcrowd.near, gave the access key, transfer some tokens for that account. These 3 actions are usually go together.

block height nearcrowd.near amount app.nearcrowd.near amount total supply explanation
32396638 117975002547050142700000000 1019767988635277999737307820909366 initial state (app.nearcrowd.near does not exist)
32396639 17974916362372455200000000 1019767988635277999737307820909366 nearcrowd.near spent tokens on transfer and fees (with a margin, some tokens will be returned). Total supply is not changed for now: process is not finished
32396640 17974916362372455200000000 100000000000000000000000000 1019767988635235544231057820909366 app.nearcrowd.near was created with initial amount of tokens. Total supply was deducted for making receipt from transaction
32396641 17974917636037642700000000 100000000000000000000000000 1019767988635193088724807820909366 nearcrowd.near received a change. Total supply was deducted for executing receipt
32396642 17974917636037642700000000 100000000000000000000000000 1019767988635193088724807820909366 final state

For such kind of transactions, sender pays 2 fees: for making receipt from transaction; for executing receipt.

We also have receipt for returning a change: it is made without fee. For this example, final cost of creating account and transferring tokens were 42455506250000000000 * 2 / 10^24 = 0.0000849110125 Near Tokens.

Deleting the account

https://explorer.mainnet.near.org/transactions/8nZeedU6RUnj65zxQYHrGx2Urx5sLe6J2T123xSNL2RK

It’s not possible to delete not your account: user is always deleting their own account. User should provide beneficiary account that receive all tokens. User could provide the account that does not exist, in such case the tokens will burn.

wxx.near deleted their account with beneficiary vng.near

block height wxx.near amount vng.near amount total supply explanation
31961454 456172376354355113240646 719560525627200400000000 1019079411898934110106918776083373 initial state
31961455 719560525627200400000000 1019079411898934110106918776083373 wxx.near was deleted
31961456 1175681792281555513240646 1019079411898883000406918776083373 vng.near received tokens (minus fee), total supply was deducted by fees getting burned
31961457 1175681792281555513240646 1019079411898883000406918776083373 final state

For such kind of transactions, sender pays 2 fees: for making receipt from transaction; for executing receipt.

Note: we do not have the change. For this example, final cost of deleting account was 25554850000000000000 * 2 / 10^24 = 0.0000511097 Near Tokens.

Calling a function

https://explorer.mainnet.near.org/transactions/8oBZrKk8jkAzrsYasoL2DW9Yg6K2GznLhvoiXmSm7kHe

relayer.bridge.near invoked a function in the contract of client.bridge.near

block height relayer.bridge.near amount client.bridge.near amount total supply explanation
32451005 927695372457390994900000000 1018709186646522709500000000 1019836940956022237114094657887001 initial state
32451006 927676238135400182753029324 1018709186646522709500000000 1019836940956022237114094657887001 the function is invoked, relayer.bridge.near spent the tokens on the fees (with a margin)
32451007 927676238135400182753029324 1018710176966066945800000000 1019836940955771421812122457887001 author of the function gets the reward. Total supply was deducted for making receipt from transaction
32451008 927691569761639596000000000 1018710176966066945800000000 1019836940953209860906932057887001 relayer.bridge.near received a change for fees. Total supply was deducted for executing receipt
32451009 927691569761639596000000000 1018710176966066945800000000 1019836940953209860906932057887001 final state

For such kind of transactions, sender pays 2 fees: for making receipt from transaction; for executing receipt. Receiver gets part of the fee as a reward for a possibility to invoke their function.

For this example, final cost of invoking the function was (250815301972200000000 + 3551880449426700000000) / 10^24 = 0.0038026957513989 Near Tokens. Reward was 0.0009903195442363 Near Tokens.

TODO: add Nomicon link about royalties when this issue will be resolved.

The example of calling a function could be more complex.

https://explorer.mainnet.near.org/transactions/DuGWWTK2sAxjffifJiJBv6hs3Hc8MdhpHnzgRJryV4Be

lulukuang.near invokes a function in a protocol of berryclub.ek.near. It triggers berryclub.ek.near to send the money to third account, farm.berryclub.ek.near. So we need to analyze 3 accounts in this scenario.

block height lulukuang.near amount berryclub.ek.near amount farm.berryclub.ek.near amount total supply
32448898 13565822561282329011544599 468266310630308773724199697 1795104370794561556009708395 1019836941925593000345074757887001
32448899 13553154814244264373824919 468266310630308773724199697 1795104370794561556009708395 1019836941925593000345074757887001
32448900 13553154814244264373824919 468011594500695874498002337 1795104370794561556009708395 1019836941925350190357602757887001
32448901 13563348945268324922643655 468011594500695874498002337 1795359347718068910135905755 1019836941924550160945561757887001

Adding the key

https://explorer.mainnet.near.org/transactions/A9767GbmRCLdeCpZYfKTQUqe17KyAu5JrZHanoRChMSV

slavon.near added the key to their own account.

block height slavon.near amount total supply explanation
32452281 4110095852838015413724607 1019836940258537920949718457887001 initial state
32452282 4110053774694109613724607 1019836940258537920949718457887001 fees are gone
32452283 4110053774694109613724607 1019836940258495842805812657887001 total supply was deducted
32452284 4110053774694109613724607 1019836940258495842805812657887001 final state

For such kind of transactions, sender pays 2 fees: for making receipt from transaction; for executing receipt.

Note: we do not have the change. For this example, final cost of adding the key was 21039071952900000000 * 2 / 10^24 = 0.0000420781439058 Near Tokens.

Deleting the key

https://explorer.mainnet.near.org/transactions/CfuXcVPy7vZNVabYKzemSwDdNF9fnhbMLaaDKjAMyw8j

77yen.near deleted the key from their own account.

block height 77yen.near amount total supply explanation
32429428 350892032360972200000000 1019836950055687104230777157887001 initial state
32429429 350851431135972200000000 1019836950055687104230777157887001 fees are gone
32429430 350851431135972200000000 1019836950055646503005777157887001 total supply was deducted
32429431 350851431135972200000000 1019836950055646503005777157887001 final state

For such kind of transactions, sender pays 2 fees: for making receipt from transaction; for executing receipt.

Note: we do not have the change. For this example, final cost of adding the key was 20300612500000000000 * 2 / 10^24 = 0.000040601225 Near Tokens.

Deploying the contract

https://explorer.mainnet.near.org/transactions/3DN4XiQCX2EeSN5sjiaB4WBjJizthbhUfqQhCBcZK57A

ref-finance.near deployed the contract.

block height ref-finance.near amount total supply explanation
32378845 42166443062029468200000000 1019767995481527182962669020909366 initial state
32378846 42165929455413658400000000 1019767995481527182962669020909366 fees are gone
32378847 42165929455413658400000000 1019767995481013576346859220909366 total supply was deducted
32378848 42165929455413658400000000 1019767995481013576346859220909366 final state

For such kind of transactions, sender pays 2 fees: for making receipt from transaction; for executing receipt.

Note: we do not have the change. For this example, final cost of deploying the contract was 256803307904900000000 * 2 / 10^24 = 0.0005136066158098 Near Tokens.

Receiving the reward for being validator

NB: No transaction/receipt is associated with such type of balance changing.

On the boundary of the epochs, validators receive reward. The platform gives 10% of minted tokens to special account treasury.near. You could think about treasury.near as about reward to the whole system to keep it in working order. Total sum of the rewards (including treasury.near) is the increase of total supply in the system.

total supply treasury.near comment
block 32716252 1020253586314335829144818854680815 2047777174062240806436499682917
block 32716253 1020323466696960098722157540903707 2054765212324667764170368305209
difference 69880382624269577338686222892 6988038262426957733868622292 treasury received 10% of reward

If the validator does not change the stake during the epoch, all the reward will go to their stake. Liquid balance will remain the same.

block height baziliknear.poolv1.near amount baziliknear.poolv1.near locked (stake)
32716252 87645929417382101548688640817 4051739369484142981303684413288
32716253 87645929417382101548688640817 4052372556336355400023161624996

baziliknear.poolv1.near had 4M tokens on their locked balance. Their reward for the epoch was 633186852212418719477211708 / 10^24 = 633.1868522124187 tokens.

If the validator decreases the stake during the epoch, it will be actually decreased at the boundary between the epochs. The reward will also go to the liquid balance in such case.

block height astro-stakers.poolv1.near amount astro-stakers.poolv1.near locked (stake) d1.poolv1.near amount d1.poolv1.near locked (stake) artemis.poolv1.near amount artemis.poolv1.near locked (stake)
block 32716252 75643656264518222662518079298 14871875685703104705137979278533 39579636061549418675704317463 9002215926886116642974675441492 195455191635613196116221250 3155647821138218410536743286795
block 32716253 77968865959341187332341390150 14871875685703104705137979278533 40986873900034981089977167653 9002215926314400176270075441492 3155843276329854023732859508045 0
diff 2325209694822964669823310852 0 1407237838485562414272850190 -571716466704600000000 3155647821138218410536743286795 -3155647821138218410536743286795

astro-stakers.poolv1.near decided to put the reward to liquid balance, so they invoked a command (e.g. ping). We can see that the stake does not change between the epochs.

d1.poolv1.near decided to slightly decrease the stake size, so the reward and the part of the stake are on the liquid balance.

artemis.poolv1.near received the reward and stopped being validator at that epoch, so all the stake are on the liquid balance, stake becomes zero.

The reward value is calculated based on stake size and number of calculated blocks per epoch. Read more about it here

If the validator increase the stake during the epoch, stake will be increased in next few blocks, we do not need to wait for the moment of the epoch boundary. For current epoch, blockchain will take into account stake value fixed at the start of the epoch.

https://explorer.mainnet.near.org/transactions/HajXjY1gSf47jakXP44ERecjFE2hFvF4FgRyQzNdZzDZ

elecnodo.near put 245.7788678019393 tokens from its locked account 57bea511f28a9c0d44148c332826a9b9fb14f13c.lockup.near to a staking pool staked.poolv1.near

Read more about epochs changing here.

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