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

Block 27578

Hash
000000b8d04000c7ec236b3d337391f891f931891285947923d1827c4a5c088a
Confirmations
14074
Time
2026-10-19 21:40:13 UTC
Median time
2026-10-19 21:32:10 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0023644668
Bits
1e01a6ec
Merkle root
f6618fbb8ce5912d7b88d5f38b6efdebf0f27749e46fa1f4a4584c8e54466274
Previous block
00000143a6f0acc5cccace3042c820a2c6c12057cc48c0ece67975c0aea8ab2c
Next block
00000116a694d56fd89e59426fd1cdd60b746cebbabbe16695ff0d0792e92dc4

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 27578 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
1b19ec1797cab008888c8aba3e33b826… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
f6618fbb8ce5…4c8e54466274 coinbase1250