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

Block 21210

Hash
0000009ee94f9b596dae8d104899699c36811501d5b3917e405a5535eeb0a417
Confirmations
20451
Time
2026-10-12 14:09:42 UTC
Median time
2026-10-12 14:01:30 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
6b07e91f15977d5cc2e1bd9e1cbee8dd9a8384ee1864a4fa2188d119f0eb911e
Previous block
0000011b0628749455250b577f5021f3458122a22553fe70d9173de656de5c8d
Next block
0000007ee87b80c7a70b8700419121f1fb37d819cc1816fd9c39cf22054d97ce

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 21210 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
209993b34ea6dca28887afaf16b0c21a… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
6b07e91f1597…d119f0eb911e coinbase1250