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

Block 20738

Hash
0000012f95260e4c6cbaeb0b112ebd58e68b388bfde48abcbd6a6e80e3cf91f4
Confirmations
21348
Time
2026-10-12 01:06:13 UTC
Median time
2026-10-12 00:57:49 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
3e92f74b5799e19c8bb30242744a871f08370d9fbfc204923963aef0310eef42
Previous block
000001041e8811f1575efcea13418590c3357c739f5c4a6216dde2f892fa5d4e
Next block
0000005576f35af9e67b1e3da3c393cf07ecfba20709cded8ac75d1918da3b0c

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 20738 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
5412f8598fbc82ba5e5898dc8c4f80aa… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
3e92f74b5799…aef0310eef42 coinbase1250