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

Block 21211

Hash
0000007ee87b80c7a70b8700419121f1fb37d819cc1816fd9c39cf22054d97ce
Confirmations
20386
Time
2026-10-12 14:11:17 UTC
Median time
2026-10-12 14:03:05 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
53721ff22e37e3c68a41c6543e3330b5b35a34317c95103c44b72fc7dedab483
Previous block
0000009ee94f9b596dae8d104899699c36811501d5b3917e405a5535eeb0a417
Next block
00000070f596ebd14ca521e8816dda85e338ccbecaa7596288278517befe175d

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 21211 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
0d4c4f2a92f477a3397a2e2d1407dd81… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
53721ff22e37…2fc7dedab483 coinbase1250