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

Block 20718

Hash
0000001713109ea02db9c0c7128267643c7bebd827f88a0443a2c60e3cc75cb7
Confirmations
20182
Time
2026-10-12 00:33:09 UTC
Median time
2026-10-12 00:24:50 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
bca6f17e8b9af23877ee5d57f9b725f1a01d53346696d4548b466707a7d40c82
Previous block
000000f3ee65becb394d311a9021111b720abb3dbcc7d86befaeb11c3547568e
Next block
0000005bddce9dff741ef12d7865c8d6c3cd9d491f1f3e66f618bf6911740044

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 20718 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
f49d0eaae4d4895421192d50bf1fe5e6… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
bca6f17e8b9a…6707a7d40c82 coinbase1250