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

Block 20850

Hash
0000009f1e56a7dad4e81d7b9a8eafd7adf28afa3f05e234cc4538168c58f1d2
Confirmations
20071
Time
2026-10-12 04:11:47 UTC
Median time
2026-10-12 04:03:34 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
3aeb1f9967d769253c0dfacd6946593b198e13f1921b8b9d05dc90bdb7983dc1
Previous block
0000007b324bdbebfb3919a6490e5b179040066488c397542a2d2e146be9ff32
Next block
00000032e12dd9b614486baca7ef94143d8243420aff4016bb557c8108386771

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 20850 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
aac172fbac8ba7bb578341c0f12d09c8… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
3aeb1f9967d7…90bdb7983dc1 coinbase1250