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

Block 28563

Hash
00000142f0d59def611c3521b7acfe1e5fd0c42a8ac19e87ae3dce86c7caee9e
Confirmations
11939
Time
2026-10-21 00:23:47 UTC
Median time
2026-10-21 00:15:53 UTC
Transactions
5
Size
3,730
Weight
13,582
Difficulty
0.0021387367
Bits
1e01d38f
Merkle root
3c14e39ea9c86d3a8b5816631d08bb6da0f1a5ab8065d1c51c1a7ba3c3e83fc0
Previous block
000001ceb7d33ef9e597a573b351a2f8dd1ef05a1fe296be1b2c02c313afda0a
Next block
000001096fafb9df6672567e7e03852535e41b8bed4d4fdc44512ddb9f83efb5

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 28563 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
fc2f3a97691f3a327d5eea1ff040f05c… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
67cd8792f31d…2ee4ba964b72 coinbase1250.00001308
f1a3f6841920…805b2050988b pays to P2MR121.99984790.0000031
e49408829067…44a55feb6bb3 pays to P2MR1216.99989440.0000031
ce9af7e50e01…665217e7eb78 spends P2MR pays to P2MR120.998993120.00000344
1e43e2394543…98a949246a82 spends P2MR pays to P2MR120.998993120.00000344