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

Block 27688

Hash
0000011507600a704aba51381ff93ac60c872d96ac722428d47f653200da77e0
Confirmations
13931
Time
2026-10-20 00:38:32 UTC
Median time
2026-10-20 00:30:32 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0023644668
Bits
1e01a6ec
Merkle root
203202bcecb92f6c09b3e9cb531670fe462c99ecbc9fed617ba876c34674d7e8
Previous block
000001a69f38140cbba003380e98acaa5b4564f1edee56be8ad2b2102ebb89ec
Next block
00000123608bbeaa5ca0fafbff05fde2ff53b24400660e185b433cdba678fb43

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 27688 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
453044812846bb872153b8e75f21b702… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
203202bcecb9…76c34674d7e8 coinbase1250