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

Block 26240

Hash
0000004da6b81666c2d156acfeda21ec695b63656bcedd3ac3626af38f92cd6a
Confirmations
15873
Time
2026-10-18 08:21:47 UTC
Median time
2026-10-18 08:13:41 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0023644668
Bits
1e01a6ec
Merkle root
063257cbcf5355fa6720be1d3287579a77bddf2e78f7b28ec73afa6d5a7b5e9c
Previous block
0000005af945cfbc99145cb7396683a48f6001f42b3c6a72915b494cfecfd96f
Next block
00000032bab87a212e1ceb8d8c5a27ee8b55bbd21866475512f17c502da0ab12

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 26240 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
96cc72fd14d7ad1070403bdbbaca6377… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
063257cbcf53…fa6d5a7b5e9c coinbase1250