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

Block 21596

Hash
00000136cc30edfd5c015ea95c0b5b302f9120bd2de68da3d151134f061377d8
Confirmations
19910
Time
2026-10-13 00:58:59 UTC
Median time
2026-10-13 00:50:52 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
973eeffb2f703fa8cb6220a54e39d612a38fff3eee6c7378aa2fc295855c757c
Previous block
000000ced7606eae532c8d8e8742571288e5a4c58ef2c6b9119f88c4c90c0f30
Next block
00000003063860a9cb60d27de16b7c11079973c5982ab267b14c645bcd4f24b5

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 21596 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
e7866c270030fbc092a8f0214259594f… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
973eeffb2f70…c295855c757c coinbase1250