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

Block 26621

Hash
00000036aa1696ae7c7d7e89bea5a459850c0f5d4e3d884739308216e4a9245f
Confirmations
13835
Time
2026-10-18 19:42:30 UTC
Median time
2026-10-18 19:33:32 UTC
Transactions
2
Size
2,977
Weight
11,596
Difficulty
0.0023644668
Bits
1e01a6ec
Merkle root
0b516f2d07598c94e51b6e4a5b64025f2a3e4860dce4f46d4b4bbfdf0f8ea632
Previous block
0000009d5a3610cffbd82c7d1bb58bf27e81b41caebf309fc68cdc70719c78bb
Next block
0000010a9dce3f59e9c4d317c5de03286efa3c7c848d9e66cf2e5f38f106748a

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 26621 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
5d5c9bffa78f42af2f7eeb976f9888f6… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
1f1354aa3bac…b96eb422e4e2 coinbase1250.0000031
a1a1602c58a7…748e74ac99c0 pays to P2MR129.99987270.0000031