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

Block 21333

Hash
000000d0034c26e42105109d5bea8a7e9cb68bdb1f56c4b432dac3254142564d
Confirmations
19493
Time
2026-10-12 17:40:24 UTC
Median time
2026-10-12 17:31:25 UTC
Transactions
2
Size
3,084
Weight
11,826
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
7eef99337f9526b4704d07f2188fd535e5f05c9f87c6fd03314bef9414a957d9
Previous block
000000782288f799e5854c0a8666f26b09269ecacd0ad88fde34f5030c500eb5
Next block
000000bf0f164fc677940f90bbc13d62e28980ed4d4b61369039e01cf6827275

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 21333 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
fb591fa4f15ef7d5740b7c69fc8999de… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
691a38f4f153…ced845165cb8 coinbase1250.00000424
197b78b576cc…e4cb5c69c8d3 pays to P2MR221.978536880.00000424