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

Block 25649

Hash
0000014ad5d60716489cc9567e8e1011e5e96f2ee489853cf78dbf4b552d0d6f
Confirmations
16386
Time
2026-10-17 16:22:33 UTC
Median time
2026-10-17 16:14:10 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
21416046ca2d08296ef52f4456d9c7a3d87adbf3656ea6ccab99c5e232ba745b
Previous block
000000937b2511a7e1e75e7e44afc8f2bc6d76157bf154319ec0a432381a5d1f
Next block
00000125191473f0a3265d1a042fc6bc3a858cf82c7e5abc7592374d2ee8fb3d

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 25649 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
ddcf86404310f83c1dae5255da97b65b… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
21416046ca2d…c5e232ba745b coinbase1250