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

Block 21746

Hash
0000013b94d677fbb9ddcec2d8c1cb3ab09e1c5f13c3a82d3b62087f5a3fba60
Confirmations
19819
Time
2026-10-13 05:11:00 UTC
Median time
2026-10-13 05:02:23 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
b78d9d3d3d1ffa6753e020b171708f00335c0e4d17b7a21b807b5021baad56ff
Previous block
000000d881f340672d1c825c1c4f59f3012f4542a54b0d4b846bc96fd6faefbb
Next block
000000462224a78f44b10defdc913bfcbdc859dbbb516534d5675506e8292778

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 21746 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
f98cfdaf84ef440fd9491e3924515cc3… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
b78d9d3d3d1f…5021baad56ff coinbase1250