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

Block 40246

Hash
000000f2f51ff7e7ba51c17485d2012df23f030ce237b808e85a0a4c03d70343
Confirmations
7745
Time
2026-11-03 00:56:33 UTC
Median time
2026-11-03 00:48:46 UTC
Transactions
1
Size
2,773
Weight
10,984
Difficulty
0.0015097403
Bits
1e02965b
Merkle root
77aee6efed226e4df4edab9ed5a7bc42e20dd739a00d4812dfd8bbf38b7c134c
Previous block
00000240c36bbe1989b7d7086bb01f338b0128ccb9db441757cfdbe392e0f91e
Next block
000001735bcb17c36b51f5d2cc9d89a7a80333b3f1c1673043832f5981cb63ab

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 40246 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
29a8006b4a22c62f2d2720b76238339b… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
77aee6efed22…bbf38b7c134c coinbase1250