Ark-0
Ark-0 is a test network for trying things out. It may be reset at any time.

Block 22010

Hash
000000c49210b114d8545309eb55aca43a2bc565575dcc81acff0a049128cae0
Confirmations
18772
Time
2026-10-13 12:32:12 UTC
Median time
2026-10-13 12:23:35 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
3f0f0377833b22f24f09310057f40cb198d25068082618b337246aa94c879590
Previous block
000000c64475408c5a6362dd5e1ef3c656068eab1149bdf055866bffc6d0dbfd
Next block
000000a41bbcd2433569cca12311d1d81d5586d895ff8a9b04f6ddfc51e2f007

ML-DSA-44 block signature (M2)

M2 is an experimental rule of this test network. From a height set in its build, a node that enforces M2 accepts a block only if, besides the classical signet signature, the block carries a valid ML-DSA-44 signature by the Ark-0 block key, in its coinbase's witness commitment output. This page shows that signature; it does not check it.

Block 22010 is at or above the activation height 20000: nodes that enforce M2 accept a block there only with a valid ML-DSA-44 block signature.

The node behind this site enforces M2 and holds this block, so its block signature passed the node's check.

Status
In the form M2 requires, followed by the signet solution push (the classical signature)
Signature
16187362f0d8a925a2cfc433c4adef2c… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
3f0f0377833b…6aa94c879590 coinbase1250