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

Block 21957

Hash
0000011d3db0b2524fdfa0d7c02611e42139672e244b85e5d263720e07014435
Confirmations
19574
Time
2026-10-13 11:03:28 UTC
Median time
2026-10-13 10:55:17 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
126bf2bf250ecf49601b1a07c9307f5d72d015f98b676c42bea91a98e5f4bfb7
Previous block
0000003ec8b545a2ae65ceaab7e82b53ea8eca0c2838e059f5f28861d36000e3
Next block
0000007667a8da8015d57b5087bfbd7d9778b050ec3fed02205822ebdd94c2f4

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 21957 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
6b57be8b2c0e2384d9cbed0c5ec3104a… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
126bf2bf250e…1a98e5f4bfb7 coinbase1250