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

Block 27378

Hash
0000008239b0a43e53535a17044719d38acd4033e4cee2e9946147ac209ca301
Confirmations
13327
Time
2026-10-19 16:17:37 UTC
Median time
2026-10-19 16:09:19 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0023644668
Bits
1e01a6ec
Merkle root
76e16d02378ec1142e161d0a1652bc5074fcb66db434a7d0451c47558570b495
Previous block
00000112bf3e0bf32144f78e197a7569cf7af0860c655417565cd328a545c69a
Next block
00000064b9daaaa14c16337c5906e18af4e76d87e6d1e9e87208d1b70d5900e5

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 27378 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
09a13cc6a22bdd91e0949fd03c19d044… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
76e16d02378e…47558570b495 coinbase1250