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

Block 21237

Hash
0000001c9aaba96faad39c54e5c20af8e35d2697e003e1dd8a1aac6a261a4d11
Confirmations
20238
Time
2026-10-12 14:55:07 UTC
Median time
2026-10-12 14:46:33 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
9cfb80ba7806ba43731a68ae7334daf975bb463459ae4518b07cbb222e9aca56
Previous block
0000011114ec34627f9c4c5f1f8e447bafff4a26b07afff57e1481bc6a9ddc32
Next block
0000003a764b0ba31d5495e91afc66a91e4092853b878b9279bcf1c62afcea30

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 21237 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
001a6b40b11c80bd576973a420911b82… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
9cfb80ba7806…bb222e9aca56 coinbase1250