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

Block 40544

Hash
000001c47a4826fd25a172bc33043d3e993276f0062825e120587b180e963e77
Confirmations
9098
Time
2026-11-03 08:48:10 UTC
Median time
2026-11-03 08:40:13 UTC
Transactions
1
Size
2,773
Weight
10,984
Difficulty
0.0014274344
Bits
1e02bc8c
Merkle root
a18aa70ab7d40240c44bdd0fbaaab8482b8323134bb374983713332736a0a59f
Previous block
00000283a1958a999a0fcb850bcce2e5e1460b17005c9055b25085f57e5dadaf
Next block
000001f548228f7fd2ac7acdda24f67dc63694277ea87483a9ccd00e478c7ce2

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 40544 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
fc16b357773a448859aabcc7f01c5bc6… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
a18aa70ab7d4…332736a0a59f coinbase1250