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

Block 26443

Hash
0000009a75e7bc2f71425133209ce21e680e25f16f379ef9bbae9bc0182231cd
Confirmations
13639
Time
2026-10-18 13:50:45 UTC
Median time
2026-10-18 13:42:24 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0023644668
Bits
1e01a6ec
Merkle root
54115bce47202f74ea8cb234f227705a64eeb86306e9f0f6a612669717650300
Previous block
0000014c6cda978187e74e175c23049353702e42e0324b49e2246f4ba7cf3f32
Next block
000000e78b8f4ecd4854e3f37da62266b0056f930a4ab83de7668d52b809035c

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 26443 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
84444db1b126baa1567fa45786e7bdd1… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
54115bce4720…669717650300 coinbase1250