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

Block 26640

Hash
00000076e48278b97dad36acb0604d31c03cc6297eacac5aa57ff09dd48b495d
Confirmations
13426
Time
2026-10-18 20:13:27 UTC
Median time
2026-10-18 20:05:21 UTC
Transactions
7
Size
4,002
Weight
14,676
Difficulty
0.0023644668
Bits
1e01a6ec
Merkle root
44f600b199e241f95a1fa900c04e07c926b2c00de8e8c160a07b1e2a233ed74c
Previous block
00000095b0201c723632157127e26e210ec1643f4c8c14fefaeb710a7aa33685
Next block
000000616adac95e416b9770162953dab0279e8de949377731459ba2120c6b2c

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 26640 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
991331af6a9cfc3a88db5e6a270a352a… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
da4a00d4a3d7…bc0577b5e701 coinbase1250.0000186
f24568b2ef70…d15220316048 pays to P2MR1217.99989750.0000031
eb4e536bf315…a8f19828cd89 pays to P2MR1240.99996880.0000031
0439c9ebef76…5a85cffe8b8f pays to P2MR1242.9999750.0000031
202070e4038b…2b45a391edcc pays to P2MR1228.99993160.0000031
c832ab24c0db…9b81136f38f3 pays to P2MR1245.99998430.0000031
fee79b54aeb6…23994dab6ffd pays to P2MR1234.99995020.0000031