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

Block 20937

Hash
0000013764a4d6fd345fb6adfdc2348460fb8eecf7e6acada319adbaa3b2d43b
Confirmations
21274
Time
2026-10-12 06:36:54 UTC
Median time
2026-10-12 06:28:03 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
4ed6325017174b84c75e02c263871ac178826955f52f26d17dd764cc63683566
Previous block
000000f2b0f1eb97b2394abd32f2d2eeb9f3bde5e6973dd622676975716d61a1
Next block
0000000348f5ef61d82c523ce14dc8d9f4b26cb3b897746683657e184d0ff3f9

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 20937 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
7e230de86c6453233d5dc35ae0f650c9… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
4ed632501717…64cc63683566 coinbase1250