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

Block 21360

Hash
000000657d65ac0ae5bbc9bb4a38ce95096bc1d308e4ca838fc5097e7349e6f6
Confirmations
20749
Time
2026-10-12 18:25:59 UTC
Median time
2026-10-12 18:17:02 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
6fecc50b34abdd0384fdf879e0a31967cc0c36019615791e416a06b5181e585a
Previous block
00000095fbff4c07450311dfcb9b81268ca142e14b1e1a1090afc5fa253184ba
Next block
0000013e158f7b94029c10037f4589b40894c3cb7bb1da95a7fb0c7f853e5322

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 21360 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
50975d00b491f86c1e71674b72d3d19f… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
6fecc50b34ab…06b5181e585a coinbase1250