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

Block 20684

Hash
000000d5146739697bf0f0126d62dddddf8f55b26a2fe2ac2951c534ec0e5203
Confirmations
21055
Time
2026-10-11 23:36:18 UTC
Median time
2026-10-11 23:27:55 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
4bcce4b2ce278a02bc0e1f91222d5684e5e69b773b8e58ce4ce71b81b1572c43
Previous block
00000110bcf0e8f04d28479dc5854a38cdbcd535b8b0b4ec72c0e4e0ccc096bd
Next block
0000009e5f04a81195e531278d88defe9b77be6a0895cee036eccc54110e171d

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 20684 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
505bd071ec18cbec2a313b7f25f27c38… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
4bcce4b2ce27…1b81b1572c43 coinbase1250