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

Block 25987

Hash
00000018899f841e18de68e07c278158393440b286937c29350f9e04358bed60
Confirmations
16442
Time
2026-10-18 01:30:45 UTC
Median time
2026-10-18 01:22:34 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
a88b694b0186030edc6f354a542e48c071c511ea9a693ac852921f4e974982e7
Previous block
000001496a77704423116fb2f49e06f965187a3ea94168ccac0083a08a433475
Next block
00000103c80042304d678421c2143158d1a7dc757d965de607a81a7302fabab3

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 25987 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
77e0e0596a25a1e60f515d7bb2735eac… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
a88b694b0186…1f4e974982e7 coinbase1250