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

Block 27686

Hash
000000e42c1391a6b6315711232a2c44bc06d1c07e1febdaf3af499cb0d404b8
Confirmations
13809
Time
2026-10-20 00:35:25 UTC
Median time
2026-10-20 00:27:31 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0023644668
Bits
1e01a6ec
Merkle root
56a0eb7cf42754d8778f9a29c65f43fe06b6a60b104a331dab6819f0a5b5dfc2
Previous block
0000006cd9bb79422d49776e4f301210c0efd679e0143a2491ce1f5fc82798ae
Next block
000001a69f38140cbba003380e98acaa5b4564f1edee56be8ad2b2102ebb89ec

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 27686 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
21a26cc556f3f14f13ba114f2eedfc26… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
56a0eb7cf427…19f0a5b5dfc2 coinbase1250