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

Block 25523

Hash
0000005dad9c58fbf008e9a1ecd740691a918c1903810abed0497696965cd717
Confirmations
16695
Time
2026-10-17 12:56:12 UTC
Median time
2026-10-17 12:48:02 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
4e73ff46a680305b03edb19c8b13c5b8d6378ff898024faaac4631de98f2b340
Previous block
0000011505db939bb8da65384a7a83b5f2fdd3a071b0278cd40770c4e0a2dd38
Next block
0000002061289fc8023b29b0209e0e04b8360385eb04a1397d572c06b51e128d

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 25523 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
09856fd07c986ca4becc7a361d8948cc… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
4e73ff46a680…31de98f2b340 coinbase1250