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

Block 21061

Hash
000000bdb9cb3c61fa9d92726dd80e647e548512bca71e8cbf91caece213b7c9
Confirmations
19631
Time
2026-10-12 10:03:14 UTC
Median time
2026-10-12 09:54:48 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
2b1caab3d187709c3fbc16b39c0c86dd52ed5c263a9416d51918da1feee05090
Previous block
000000d361e1738d88dc6c0fead70e1e9648548374cde7e84eecd403d1a36b48
Next block
00000066df2c81db592b6c21935331dba3859dab9d5d7039c1d295372fb71ef0

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 21061 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
0d5e517dd087576a173b192dd8f35013… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
2b1caab3d187…da1feee05090 coinbase1250