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

Block 25663

Hash
0000007a920b85b6b0cb546d374ff6e39a19428d0d51f2d18cba1b963c36ca40
Confirmations
16092
Time
2026-10-17 16:45:14 UTC
Median time
2026-10-17 16:37:04 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
cc84be10a6265e50c780083c0add19f4492d18e98c53a5a034ecf2f137d2e54c
Previous block
0000017c145c55229275fad29e6a6ef66be831fea0e96e8111337ee4c35ae0b4
Next block
0000006449f7d9e4467752a09486ad852d9ca7b48fce57b31a37c40a06d1fd26

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 25663 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
14ba5a7574421d41398ec222863729a5… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
cc84be10a626…f2f137d2e54c coinbase1250