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

Block 21086

Hash
000000b72190d3b40c53a3485e378cddf07aaaf9f15ebbd2f6fbe27df03a4d14
Confirmations
19295
Time
2026-10-12 10:44:45 UTC
Median time
2026-10-12 10:36:03 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
a477d96e1a9b1b6af025f52defac18f6288bcc5515d37d2d5ece2cb46682b8e2
Previous block
0000004e3f552eee56e610ca609481399b8bda0f0d377514841b23fb06e82800
Next block
0000010973778f8973a31a682673d3c3c47e03f80c7ba877799e250fdf34cf85

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 21086 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
735a0c11f0209bbbce30530d2e6c2a28… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
a477d96e1a9b…2cb46682b8e2 coinbase1250