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

Block 21478

Hash
00000000d8d7499228b54913e1203a0e3e165c46559ac4edf54c97ffe601d10d
Confirmations
19482
Time
2026-10-12 21:41:39 UTC
Median time
2026-10-12 21:33:16 UTC
Transactions
2
Size
2,977
Weight
11,596
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
506745a1bcaac8cc6a13698a01dd6d4f366afdf4a74ceb1713fb71331a5f165c
Previous block
0000010c3aad1d98b6b1505e10684eb4395274790202870da327c56d9b0b80e5
Next block
000001296c4bbc40dbd16801f5020e9703aee5404250867ded008921a5752936

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 21478 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
983e72413cdca10231aae26913c96fea… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
94fa38541b19…b99d3c26a563 coinbase1250.0000031
d09c091cbff8…b1ccf1e7493d pays to P2MR1224.99991920.0000031