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

Block 25597

Hash
0000016d0738982c3454306a316b4953e129e27360723bc7ea94f9e47b8e4679
Confirmations
16738
Time
2026-10-17 14:57:13 UTC
Median time
2026-10-17 14:48:29 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
2aff08d6ccc875c61facf8118a6f718845d0a9f4423bd2dfc62a0b0b8cb7f7fa
Previous block
000000b8e82608be65e1e6449238cab3d5000121eaa1b0cc849ee16ff9734bf0
Next block
000000d5ff44bd467a893a4c63be06b348b93a54fffd71201f75b1b2fa6c70f6

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 25597 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
cea47a578bdf63967cced1a6f66830c7… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
2aff08d6ccc8…0b0b8cb7f7fa coinbase1250