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

Block 21937

Hash
0000007bcdc768ff224d17a263fa63d12cc199ebba9b8548eb45c94f42b857c3
Confirmations
18500
Time
2026-10-13 10:29:39 UTC
Median time
2026-10-13 10:21:07 UTC
Transactions
2
Size
2,977
Weight
11,596
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
f671bbc55b6e39f53f51bf9af2293ed67491ea6b309fc0a41d881e96ad97fb0f
Previous block
0000007caa6622d7d97ef04c285b0d770a8d45921ecbc2f7b5977f485d11d713
Next block
0000010aec34a1f00fb9f368146a0385420b1f35a5b0ccf7bb8bb323741044d2

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 21937 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
d6e679b9080afde608a322704e145307… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
b342d9aaaed8…7ebcb3b18c65 coinbase1250.0000031
022848189edc…0b2f4b24bb5a pays to P2MR1220.99990680.0000031