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

Block 28686

Hash
0000007d0246048593a214ff99522a8de9dc434ad101c939deb4aaa919bbdbc7
Confirmations
11733
Time
2026-10-21 03:44:12 UTC
Median time
2026-10-21 03:35:55 UTC
Transactions
7
Size
4,416
Weight
15,090
Difficulty
0.0021387367
Bits
1e01d38f
Merkle root
4985ae795a6a1c483cbe849dd4a032d7d68b4191234cb372d5e4089de3c373f4
Previous block
00000167100274daabf7faf44593d072829fc0da3fa4f4286396c8c06d08eddc
Next block
000000e1ada8505c2aa87977e39b8dc61feb20c2dc8e4cd767c278454b9ac6ba

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 28686 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
4fd1cfa701fcd513659422cfba23f837… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
e56fd8dca386…8746dc8224dd coinbase1250.00002064
21ffe19d575d…7011d6f83129 spends P2MR pays to P2MR120.999996560.00000344
bd7f656f5f3d…c3ac0c95123c spends P2MR pays to P2MR120.999996560.00000344
c02a645ddffc…1254838b3e50 spends P2MR pays to P2MR120.999996560.00000344
c91f227352d8…afaac21ad07d spends P2MR pays to P2MR120.999996560.00000344
abd6b1925acf…96e37c075dab spends P2MR pays to P2MR120.999996560.00000344
b8d9031ec920…36f0c241a6f5 spends P2MR pays to P2MR120.999996560.00000344