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

Block 21041

Hash
0000006f88e6f97eec606679f29f1e821f6b157029c34fe73eb2bbd7dd5a9d0b
Confirmations
21000
Time
2026-10-12 09:28:43 UTC
Median time
2026-10-12 09:20:48 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
51c6fc6d65c0d27aa0e5661ac6a9bd6745f01c89f974add129e7cc8a590ae7c2
Previous block
0000013b4f6089b77a08ee7a9fa682ce25a85309c581b7d13e34b4a0055bc17a
Next block
000000623352011b8ae5d909418b4c0c867544ca07fd1b49072b8823a3c2a74d

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 21041 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
9c36401f2828d02f7978c6ba00b56684… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
51c6fc6d65c0…cc8a590ae7c2 coinbase1250