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

Block 21161

Hash
0000006cabae4f13b0bdb959910e44dc25ba5c30e2a370f921a5208c779d86e8
Confirmations
20116
Time
2026-10-12 12:47:46 UTC
Median time
2026-10-12 12:39:03 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
81a215561798360b6a865d41d45496f7ecdbf630cfd268cb48d2d133a9d3b5e9
Previous block
000000600ee21d8e5013a354d712ba878c082f3f1954b850f3ee9f2bd0eada74
Next block
0000012fff611ee8f20d27c82c2e4b63a05efb0aeee4a14a4a00759a162c44c6

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 21161 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
aa623c43b70957cbe4c201ee0dff82c1… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
81a215561798…d133a9d3b5e9 coinbase1250