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

Block 21514

Hash
0000002481a2f53b11136ce821e3133c7bba68305f24d3cf7f2a0de1b04477f9
Confirmations
20136
Time
2026-10-12 22:41:16 UTC
Median time
2026-10-12 22:33:16 UTC
Transactions
2
Size
2,977
Weight
11,596
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
3e15df163d29b355c14b085e94b42056555840b7d60b2163ffeb726648d115c2
Previous block
0000010a2e574875843ce73c2afb52452f1ed8828b52ff96b6f6c8a6f42c6603
Next block
000000d27eedc3143f21a4473073d6025f1a80329c825d5c198e67b86acf407d

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 21514 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
d3cee431f1fdeaa6530c16a9b456aab1… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
4fdc2fe0d46c…7d8307cd7c2e coinbase1250.0000031
c156f8cf799b…cabffa1883bb pays to P2MR1212.9998820.0000031