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

Block 20554

Hash
0000000a6c7bf11610f2e2501fc9c0f8957fd7120fabf013426d20349e62df12
Confirmations
21732
Time
2026-10-11 20:04:08 UTC
Median time
2026-10-11 19:55:51 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
72d12f066c84516ecd3bf5a9a34f4e22acd25ffa3d0a77dcf09df8daf2649cba
Previous block
000000fe113408c81ceb7c1562517f28a280081d4ab42e861db81b5899fd4783
Next block
000000fd1f4df5fa7f19eb49681fb97790c2edf1e77aee024e2f80cbd9933465

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 20554 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
696ffd4f5f80645259d133cef8685c18… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
72d12f066c84…f8daf2649cba coinbase1250