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

Block 21888

Hash
000000959a2afd69e6ece23e809691874777e94ba992581df06db8b8d886072c
Confirmations
20225
Time
2026-10-13 09:06:11 UTC
Median time
2026-10-13 08:57:18 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
ec779b33c632fbe0b4e68571cd30713aff859b3070505cb7c38c81b5102e4552
Previous block
000000a98df7ffb6126f9613b7928b899b88a5faef788dfaacf5607521a5f807
Next block
0000007159bc23b99ce45466d333713d92c8b0e07523870541ceea8592fd1335

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 21888 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
6301f50e9639e122e3a46fa70bf4937c… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
ec779b33c632…81b5102e4552 coinbase1250