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

Block 21133

Hash
00000015cdffc6f92a69a014fc4c6d49b9599b2f8112ef843e3b2b7635b40314
Confirmations
19091
Time
2026-10-12 12:00:21 UTC
Median time
2026-10-12 11:52:34 UTC
Transactions
2
Size
2,977
Weight
11,596
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
44ac3a839490d02e03312a67ef737b08c31f20f2c13af465527565b759e0f797
Previous block
000000db71a9d92c8228ff806cb0b76aa98142b1a16e4bbbfe9752d15daacc58
Next block
0000003bc9ff06addc48a4d4f096357f8cadb3f0391e1aa48e546fdb00397a00

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 21133 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
d1858191540226aa0e20adae8f511677… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
6a4bec460772…0377e9a3de2f coinbase1250.0000031
4c5ad00a8840…d654790c62bc pays to P2MR1218.99990060.0000031