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

Block 21242

Hash
00000126618382a28881f68128b86770b7075b420e8a7bab2ceab4316e2e5097
Confirmations
20013
Time
2026-10-12 15:03:42 UTC
Median time
2026-10-12 14:55:07 UTC
Transactions
2
Size
2,977
Weight
11,596
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
e8cea0ce20869b353d1bdae370c57f7d1c999dc29928f4601a38e2f0f08421d9
Previous block
0000003ce50170fe15418a4d3038d6b442c22bd2549aac64eb11dbfb7e53af9e
Next block
00000007c8858785f3e2dd7b6946654dcc6d6ec3a95a95f0070ed303af9bd538

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 21242 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
8609551113b58b80670b69e1b1c343f7… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
ad4338c28001…4f3a8f3935f9 coinbase1250.0000031
90d1310e43df…2d1a588620de pays to P2MR1211.99987890.0000031