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

Block 20725

Hash
0000012f450c41502e3a662d86edc61922119f4c9a50406aeac6fcc9724c1472
Confirmations
20730
Time
2026-10-12 00:45:08 UTC
Median time
2026-10-12 00:36:51 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
603c05d56e8dd1e7ed332e1c55412334ecbb44022695671b33fce6a83151893e
Previous block
000000713a1d999bdcbf1869cebdb63567e5d6229ab998ff923c122895f4acf5
Next block
0000013aab42e5e9478735ff99cc796f8e0760b40d1c8263de7e83b591c0a596

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 20725 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
1dff7bfc0ca4c857639204f62a54177d… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
603c05d56e8d…e6a83151893e coinbase1250