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

Block 28399

Hash
0000016c39a9b801fca03b7160d228005fed3a80a9414f46c345dea4850c398c
Confirmations
12407
Time
2026-10-20 19:58:09 UTC
Median time
2026-10-20 19:50:29 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0021387367
Bits
1e01d38f
Merkle root
1bc9568bb5b340706142a56d56769d64fabd3c6ff220533260ee619dcaea6fc5
Previous block
000000a57b6979b01e0f89dd280af2ca91eb839615987685c981923fd9325dd8
Next block
000000b2a741fcc9ed8f89b040f14673ea7f1fb0d1a62b711f1fe438a754e7d2

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 28399 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
fd9ca37d1bf15dcfbd7b32103aa2b0bd… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
1bc9568bb5b3…619dcaea6fc5 coinbase1250