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

Block 20931

Hash
0000013bc6e2be3600be35d45621421f8b319323de25f43c2f04e62e0031a600
Confirmations
21360
Time
2026-10-12 06:26:30 UTC
Median time
2026-10-12 06:18:42 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
a7b16d008331376bf163a33ce8b11cefb16f497e2d91dffaf6b4ca56a51179d1
Previous block
0000004fb7c3cc6959a64dac0f9132f2ebede1cdfabc64a898b68493e9809abc
Next block
00000068212cbcc35bc8f5f16e1925a6de923cd5a356f2e6456aa49317aac976

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 20931 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
c93f02f82252c5e780e6ed3bad907292… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
a7b16d008331…ca56a51179d1 coinbase1250