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

Block 21585

Hash
000000c42d110de24e98499ab2e2758c022142d7f4bd6c76db906485719d3df7
Confirmations
19462
Time
2026-10-13 00:39:50 UTC
Median time
2026-10-13 00:31:38 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
cc32c37285374b4ded167ed4ba8b0e4660724d0cff0cc9cdd0f1822e088322be
Previous block
000000f592d875b57b6eee14d2db4b91c10f7d9af7df787035789913b7788ceb
Next block
000000dbce399046dd708ddd1257b1ba3c660da7a306cd372d8b5c25f88382f6

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 21585 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
0204b4f4249f2a101a05759d76d93d9e… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
cc32c3728537…822e088322be coinbase1250