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

Block 21350

Hash
000000d0c53e5d511d83f0a6655ae45f8e66b67f5c28472d2740c6a91d14e82d
Confirmations
20551
Time
2026-10-12 18:08:55 UTC
Median time
2026-10-12 18:00:13 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
fb41a5d92a80d87c890cd87655b6e8c6281fc1292542fec30dfdb6f92158a0dd
Previous block
000000306f7c6ed839d9a2c2026fc12b2625dbc5011bc4e800c1e8004015197b
Next block
0000010d00f153ba45ae4fcd91a49ab74931e56b3857e252dff43cf45f7ce1c2

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 21350 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
fffa978e34362634cad5ef638e999a19… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
fb41a5d92a80…b6f92158a0dd coinbase1250