Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange
Join us in building a kind, collaborative learning community via our updated Code of Conduct.

For questions regarding the Stellar Ledger

1
vote
0answers
13 views

A complete catchup of the testnet keeps failing on verifying ledger

Trying to perform a full sync on the Stellar testnet using a recent dockerized stellar/quickstart in persistent mode (horizon: v0.13.1, core: v9.2.0, docker: v18.06.0-ce). After around 10 hours the ...
3
votes
1answer
61 views

Order of trade executions inside the last closed ledger

How are the trades ordered before the ledger closes? Looking from a "high frequency trading" perspective, is it possible to execute some attacks like front running on Stellar? If my node receives a ...
4
votes
1answer
22 views

SCP. Does non-intersecting quorums have different ledgers?

As I understand "slot" = ledger number, "value" = set of transaction. So сould you explain what happens when I(simple node with quorum slice) create a transaction ? 1) Do all nodes in stellar-...
3
votes
1answer
28 views

Notify every new ledger

How I can get notify (like newblockinfo in bitcoin or getlastblock in ethereum or bitcoin) on new ledger in blockchain with go-sdk
1
vote
1answer
44 views

Difference between Stellar Ledger and Blocks

In Stellar, the transactions are stored in ledgers. Since the computation of current hash does not depend on previous hash (since its blockless), how can it be guaranteed that the data stored is true. ...
1
vote
2answers
45 views

Ledger Blue and Ledger Live

I bought XLM and wanted to store it on my Ledger Blue. I read another post that this supposed to be possible and yet is seems impossible. Is Ledger Blue actively supported? Ledger Live is now ...
3
votes
1answer
20 views

Why does the first ledgers xdr file contains only 63 ledgers?

One ledger-headers file, named by ledger number as ledger/ww/xx/yy/ledger-wwxxyyzz.xdr.gz. The file contains a sequence of XDR structures of type LedgerHeaderHistoryEntry, one per ledger in the ...
1
vote
3answers
59 views

Account information at a given ledger number

We are working on a project which would require to know some account information at a given ledger number (data fields, balance and inflation destination). The ledger number is coming from a specific ...
0
votes
0answers
18 views

How to initialize the blockchain? [duplicate]

How were the first tokens issued? Modifying the database? is there any special case on the code to accept anything coming from the genesis block?
0
votes
2answers
29 views

Private Testnet 404 issue

I am working on stellar private testnet setup, i have setup 3 stellar-core nodes and horizon, Account creation is working fine but data not showing for ledger, payment, transactions etc. All 3 nodes ...
1
vote
1answer
43 views

How to use MANUAL_CLOSE in core config?

The example config states that "Ledger will only close when stellar-core gets the manualclose command". On a new private testing network (ledger#=1), after setting MANUAL_CLOSE=true, I did stellar-...
6
votes
0answers
39 views

Info on metrics

Is there any documentation as to what each of the metrics outputted by stellar-core -c metrics means? In particular, I'm interested in determining the number of transactions reviewed by a particular ...
0
votes
1answer
32 views

Number of transactions in Ledger

Does one ledger hold multiple transactions from different accounts? By looking at the single ledger, I see only a few transactions. In the above ledger sequence, there are only 2 transactions.I assume ...
1
vote
1answer
35 views

Trustline Created At from Horizon Database

I try to find when is trustline to an asset is created in horizon database. I joining history_effects, history_accounts, history_operations and history_transactions. I got created_at field on ...
2
votes
1answer
84 views

SQL Database and Stellar Ledger State

Browsing through src code, saw below line in https://github.com/stellar/stellar-core/tree/master/src/database: The Database object manages connections to an SQL database, in which the current ...
3
votes
1answer
53 views

How do I get an historic view of the inflation votes?

Specifically, I'm interested in knowing what the state of inflation votes were at an arbitrary historic timestamp. I can run the ledger backward to figure balances, but I'm not sure how I'd figure ...
16
votes
2answers
426 views

How big is the ledger?

The public ledger adds a new entry every 3-5 seconds. So I am worried it might grow too big for normal users to run a node. How big is the current ledger and how much is it expected to grow each year?
3
votes
1answer
46 views

Terminology - What's a Ledger in Stellar?

This may sound simple, but to people (like myself) coming from Bitcoin, its not immediately clear what a "Ledger" is. Does it equate with "The blockchain" or the "block"? The Stellar documents are ...
5
votes
1answer
229 views

How do I install the Stellar app on my Ledger Nano S

I just received my Ledger Nano S and understand that it has support for Stellar. What is the procedure to install the app on this device?
3
votes
1answer
45 views

'Skip List' examples?

Has anyone used the 'Skip List' property on the ledger? If so, do you have an example / use case? Skip list: Hashes of ledgers in the past. Allows you to jump back in time in the ledger chain ...