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

Block 22308

Hash
000000f133893698d554820a19813482522b60c64f24601020f44c2d5c1a573f
Confirmations
19880
Time
2026-10-13 20:44:10 UTC
Median time
2026-10-13 20:36:03 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0028309697
Bits
1e01613b
Merkle root
fe4f433902342c410190976fa6d83eefc22d5b3cc47deee3a8c51d2ad7213f02
Previous block
000000fe6ae9b571ce76d6fffe71125c89889f6d89716536757fe8985007ff53
Next block
0000007db157c804b93d7f4f7041ba36e196051e9e750319704338de8591ee2d

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 22308 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
ac30866024721ebe1ec6be3f1209764e… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
fe4f43390234…1d2ad7213f02 coinbase1250