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

Block 20263

Hash
000000a3c9e75f1a7be3c6724c71ebe58247ac51f316ab99bab5060f4b8c4f09
Confirmations
20380
Time
2026-10-11 12:03:48 UTC
Median time
2026-10-11 11:55:06 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
9c1adf02df2aa4cac539043b5a9fac08396440c1e601a65eafb81ef6819820a9
Previous block
00000101b14276891af6030ea0c5bdbd684f3dd0d0d26660f33f684345eb0551
Next block
00000026768c6e01ec2deffd80b47cbd9fe19be3c83318b271b928ee74a3d067

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 20263 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
73bf6e294487a82e8b21c74499546ac4… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
9c1adf02df2a…1ef6819820a9 coinbase1250