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

Block 26673

Hash
0000018a1b767175dccedd162720c580094e08ba4982378276b354083e49a7e8
Confirmations
13885
Time
2026-10-18 21:07:22 UTC
Median time
2026-10-18 20:58:53 UTC
Transactions
5
Size
3,868
Weight
13,720
Difficulty
0.0023644668
Bits
1e01a6ec
Merkle root
847c9e669ff4ad1dfb5672b9ff49d5f3b6f8e751e4f93b0a57f4f779db02f481
Previous block
0000002e48e69653473c75acd0655c1b658fa2fcf7b78e19af7e891ba22bbea3
Next block
000001213c74d361ece614d178432f721903eb875b8b3923128203042489a034

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 26673 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
8f10c70028ad765d949630572dbe9776… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
139eda801f8f…e20379249b42 coinbase1250.00001376
3fa14e03a511…558c9f189c74 spends P2MR pays to P2MR120.999996560.00000344
4b74b9c07275…97f4cfb3e48f spends P2MR pays to P2MR120.999996560.00000344
251472be01c4…28696109e497 spends P2MR pays to P2MR120.999996560.00000344
7010e083e0bd…260c735810dc spends P2MR pays to P2MR120.999996560.00000344