The protocol in detail

YSKAR and YSR, byte by byte.

Everything below is fixed in the consensus code and the same for every node. Nothing depends on a server, a company or a setting.

The coin

Name · ticker: YSKAR · YSR
Smallest unit: 0.00000001 YSR
Smallest amount to send: 100 units
Pre-mine · allocation: none
Burn address: ysr1qqqq…regwfw
Minimum fee (consensus): 1 unit per byte
Minimum fee to relay: 10 units per byte
Fees go to: the miner of the block
Pools: paid from the block, fee 0–5 %

The chain

Network: yskar-main-1
Consensus: Proof of work, SHA-256d
Block time: 600 seconds (target)
Difficulty: LWMA over 45 blocks, every block
Emergency rule: easier after 30 min without a block
Full nodes: each keeps and checks the whole chain
Transactions per block: up to 2,000
Chain selection: most accumulated work

Wallets and accounts

Model: accounts with balance and nonce
Seed words: BIP39, 12 or 24 words
Key derivation: SLIP-0010 · m/44'/9077'
Signatures: Ed25519
Address: ysr1…, 42 characters; shared accounts from V6: ysr1p…, 63 characters (bech32m)
Transfer size: 168 to 200 bytes
Memo: up to 32 bytes
Expiry: optional, by block height

Anatomy of a block header

Every block starts with exactly 136 bytes. Its hash is double SHA-256 over these bytes, and it must not exceed the target that the difficulty sets.

ver4 height4 prevHash32 merkleRoot32 stateRoot32 time8 diff4 txs4 extra8 nonce8

prevHashThe hash of the previous block. It links the chain: changing an old block would change every hash after it.

merkleRootOne hash over all transactions in the block. A single changed byte in any transfer changes it.

stateRootOne hash over all accounts (balance and nonce) after this block. Every node computes it itself and compares.

nonceThe number miners vary. The first 128 bytes stay the same for a job, so each try needs only two SHA-256 compression steps.

Anatomy of a transfer

A transfer moves YSR from one account to another. It is 168 bytes plus an optional memo.

meta8 from20 to20 amt8 fee8 nonce8 key32 signature64

The signature also covers the chain ID, so a transfer signed for YSKAR is invalid on any other network.
The nonce counts the transfers an account has sent. The same transfer can never be applied twice.
An optional expiry height lets a transfer lapse if it has not been included by then.

Block 0

The first block of the chain. Its coinbase carries a short message, and its reward went to an address nobody can spend from.

“proof, not promise”

Hash: 000000090a14a03f…72c33c66
Timestamp: 2026-09-09 00:00:00 UTC
Nonce: 50,773,796
Reward: 875 YSR, unspendable

Issuance by era

An era lasts 12,000 blocks, about 83 days. In each era the reward is half of the one before. From block 444,000 no new YSR are created and miners receive the fees only.

Era	Blocks	Reward per block	Issued in the era	Total after the era
0	0 – 11,999	875 YSR	10,500,000	10,500,000
1	12,000 – 23,999	437.5 YSR	5,250,000	15,750,000
2	24,000 – 35,999	218.75 YSR	2,625,000	18,375,000
3	36,000 – 47,999	109.375 YSR	1,312,500	19,687,500
4	48,000 – 59,999	54.6875 YSR	656,250	20,343,750
5	60,000 – 71,999	27.34375 YSR	328,125	20,671,875
…
36	432,000 – 443,999	0.00000001 YSR	0.00012	20,999,999.99832

Rewards are counted in whole base units (0.00000001 YSR), so each halving drops the remainder: in total 20,999,999.99832 YSR will ever be issued, slightly below the maximum.

Check block 0 or the latest block yourself, right in your browser. →