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

Block 20918

Hash
0000003520f9ca61ab7e1557e077844d8e6322a1840e21e5510d1e9f34957845
Confirmations
21359
Time
2026-10-12 06:05:48 UTC
Median time
2026-10-12 05:57:33 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
70922ed397d2069fbd223f406366410e5a4e9e04e53e1d32853e3e0b40382768
Previous block
0000002894b33d0048a31582fbc80ce9b7bbf80b2818a62e9198619718409b6d
Next block
000000408a5d3426aa512a1eeeb307fe28c3e4211744b578879041f21e89477a

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 20918 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
9ae68773a8b1d7a26b4434449a7bc030… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
70922ed397d2…3e0b40382768 coinbase1250