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

Block 21151

Hash
0000012e6141aad95f60447bde7247999a66ab9b0804270624ab2eebd017ab92
Confirmations
19526
Time
2026-10-12 12:31:00 UTC
Median time
2026-10-12 12:22:22 UTC
Transactions
2
Size
2,977
Weight
11,596
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
0aa444ffb2c763747f3f5c5f60c1b616032a1de0705a8b31db899b94b23000f6
Previous block
0000011c4ca0caf9e4452e5361875e2b37aaad2f90542d8100cd7c99ddcdc9ca
Next block
0000004f2372d0a13541f1c45ea8e81c92f5f9e0b5819cf3d817cc8c4d029bff

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 21151 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
b4a10a8ebcff52428578f6c697cd9e5f… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
bb8dbb588e6d…f9a53e6286ec coinbase1250.0000031
0589b2de0c31…d3a980bc07af pays to P2MR1245.99998430.0000031