6

There are a lot of options: TzKT - I recommend this one! Tzstats Tezblock Tezos.id Better Call Dev - for smart contracts Teztracker Mininax


3

I checked the operation here and it indicates that this account only had XTZ 116 while they tried to send you XTZ 134. The link proves the transfer didn't go through, you should probably contact them and ask them to send the transaction again :)


2

You can check better call dev for exploring contracts if you know the address


2

The smart contract depo contains a subfolder onchain for all onchain contracts as of february 2020. Normally, it will be updated regularly.


2

You can get historical balance (at the specified datetime or block level) via TzKT API. Examples: /v1/accounts/{address}/balance_history/2020-01-01 /v1/accounts/{address}/balance_history/2019-05-16T23:14:01Z


1

The baking bad block explorer lets you filter by date, by clicking the calendar icon: https://tzkt.io/ Paste the address you are interested in, into the search bar, then filter by date


1

Here is the multisig used for the Babylon invoicing: https://better-call.dev/main/KT1DUfaMfTRZZkvZAYQT5b3byXnvqoAykc43/script


1

Write your own indexer to pull blocks from RPC, parse them, insert into MySQL. That's what all indexers do. TzStats uses BoltDB and the ones you mentioned use PGSQL.


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