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

Block 20547

Hash
0000010183b0d09ad7c0da4567b114bf43686390c365dac5a03974faad5495ab
Confirmations
21880
Time
2026-10-11 19:52:31 UTC
Median time
2026-10-11 19:44:16 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
1bb0d16ad078032e01f111da05224d7756b28b6815a2e66a8283871533b160a2
Previous block
000000dba7300483770eb40233cfe5b799ecfe0940fe6de102e84d2cea169ce7
Next block
0000005c5d33f696f7d303408ad37eae5310fc766f8c4bd2a27cf09357c8d6be

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 20547 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
e14de6dfe53c2102b8535a0c819377af… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
1bb0d16ad078…871533b160a2 coinbase1250