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

Block 25256

Hash
0000002a35492abfd263c7ac19926376f582bcc31edf6f25642b11e4d5e3ca7b
Confirmations
16868
Time
2026-10-17 05:36:42 UTC
Median time
2026-10-17 05:28:22 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
001705f8755b5d58812ef8048f04367373aa7ba7a97bca291ad7f9caebf1eacc
Previous block
000000a361d0d059a9d44c1e7fd6bedf138cfc4a267c20db3e78177e9fab0faa
Next block
0000000e0c5a44b75c38f403b7018ff46a11f3b9172d9a61945e8932c6a0bcfe

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 25256 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
0803044ff8d2206640ad6e03d352d3a0… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
001705f8755b…f9caebf1eacc coinbase1250