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

Block 21695

Hash
0000005e3b8175e7fb0461d11a26a64017f357c97e7a0bf4731d8296484fb958
Confirmations
19586
Time
2026-10-13 03:45:30 UTC
Median time
2026-10-13 03:37:25 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
26c10576990116f4d841c67de9c42c3e0328fa8273cd5185b26f60f23e910baa
Previous block
0000005413b62ab150905515d464105d2d72774ee26f918da2c0c8bc49e0c452
Next block
00000019bcad4bc71f8e2a725eeb5f24a553051ee144a9890e796b72d4eb1d81

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 21695 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
97e7565e7ab71fc4b0ee6a2ec54e431e… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
26c105769901…60f23e910baa coinbase1250