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

Block 22143

Hash
000000b8264cc4d77bcdf857dfc742dece69aa4fd3d7b6cef2270355e315c131
Confirmations
18440
Time
2026-10-13 16:12:33 UTC
Median time
2026-10-13 16:04:08 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
71dfa808e13e4e981a3084722b5648f4430dd17d588ce76d13cc7d9f25357062
Previous block
00000032b9b6fa794288c31818c99afbca469dc699b8c056dd6b7600c8694550
Next block
000000d15431765629e1190160d6d24542da0ddc0e8bb36d18f8abfe93848146

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 22143 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
2ca69eda2454ad75b9a8360a303a27e9… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
71dfa808e13e…7d9f25357062 coinbase1250