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

Block 22515

Hash
000000b4b5cc9781a36fb9d7437d93cf9a63c6e03e87f413363694b6026850e5
Confirmations
19064
Time
2026-10-14 02:25:50 UTC
Median time
2026-10-14 02:16:58 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0028309697
Bits
1e01613b
Merkle root
40a509a7988adea8b272ea51a16fad547505085a28485acb0d68402663c987cd
Previous block
000000e06d56a84291334ae4cbb9a3f86675e72414a8b114a69365a2826ac593
Next block
000000d67e83f695d568ad46bf28b8ade21c7595b8b0522728ae9e9232e464a6

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 22515 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
55419aa2e5a6d0d4992ff50c6347d767… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
40a509a7988a…402663c987cd coinbase1250