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

Block 25197

Hash
0000007ed0a2c6caf7e9308cd5df16065cb7517d917f68f15bb9b2aaab16e438
Confirmations
15670
Time
2026-10-17 03:59:50 UTC
Median time
2026-10-17 03:51:58 UTC
Transactions
3
Size
3,182
Weight
12,212
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
f3de1a2772a8b3f50464549bc5cb590f7f3081b01e765b63b890c49bf3a07aab
Previous block
000000fb7007802d5c01b4d81a7f563cb43ea9ea39dfdce48fc0d2ea21e5fb69
Next block
000000d919dfdd42a78596d6888cab5ff9d9221c87357fbfacb3950bf4b47fee

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 25197 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
9291c2951b82afa2543fbbf4fb7e862c… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
df22a4d62a75…c9c264439e47 coinbase1250.0000062
b0d852d6bbae…ae05841fac1b pays to P2MR1211.99987890.0000031
8a34ea592d31…33c6b0375670 pays to P2MR123.99985410.0000031