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

Block 21459

Hash
0000007003829e4449bebbe315368d88e664e4d0e3e44421c73d925a3b6edd33
Confirmations
20066
Time
2026-10-12 21:10:23 UTC
Median time
2026-10-12 21:02:13 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
687161e955d701d2548f59705238c53e89a014dd6583fb9a8fadfbdc9a7f8bbb
Previous block
0000007ced270e02971ff458c0725f4f5caedfc1363fe856a6e893ae183d19ff
Next block
00000078f51982496babf3db44f89c2f30b330f5d575235e709540ca5fd6adb4

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 21459 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
1eefdfb6775c890c1c4bc1c84bf09f9e… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
687161e955d7…fbdc9a7f8bbb coinbase1250