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

Block 21828

Hash
000001308248fd46eadd0b69ff7068eff70ca42f0614146ce7bb79904a2df763
Confirmations
19680
Time
2026-10-13 07:27:19 UTC
Median time
2026-10-13 07:19:17 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
8528bdd28104ac1614d9a05062e647345c4aa72969653e4bd038cb630a0961b1
Previous block
0000003c162fcc90e8a362dd621b17bb7ebcaa49a550f6c5a13c8adc250eb216
Next block
00000064d8b1d514575477b746abe3eaa220e138bc457526eea5b04d9e9e5da6

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 21828 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
89e9e17ba8148c9dce3a60149e04f3cf… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
8528bdd28104…cb630a0961b1 coinbase1250