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

Block 21043

Hash
000000876778ff5a03564d7826bb1891fdad21614db7462817bd92338904a736
Confirmations
20877
Time
2026-10-12 09:32:40 UTC
Median time
2026-10-12 09:24:06 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
56e445743ddbc96ff7763e401429c7823bf72ae8f8c12631573d1c02775d16af
Previous block
000000623352011b8ae5d909418b4c0c867544ca07fd1b49072b8823a3c2a74d
Next block
0000006ee43353adb46439563a669547e283dce7492a4a8b721e450df216cd9f

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 21043 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
bee627a6680b67a176f01e9d9eead111… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
56e445743ddb…1c02775d16af coinbase1250