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

Block 26878

Hash
00000016919120946898da97796d9ca649ea4a55c267641a2377a31ca6d2636e
Confirmations
13598
Time
2026-10-19 02:40:17 UTC
Median time
2026-10-19 02:31:16 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0023644668
Bits
1e01a6ec
Merkle root
ffa3a2714706cb7569a2244d18f9a43871f6c41335374314c8fb3ed4970b02e4
Previous block
0000015837f4edfb6a88ee4a6dc090a4990d748671184b4a3274281d64812a60
Next block
000000dfe9dd4f9d9b339a8eadc691d9aaa516169bfaaf904bc24d41cf1ae70f

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 26878 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
a4e9b1d7bd2606fd6881bbfd4f6c9389… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
ffa3a2714706…3ed4970b02e4 coinbase1250