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

Block 28700

Hash
00000163a2469b1a1e3058cc203f3da2bf8e121b8bbf86cbe3665a8d00284af7
Confirmations
11678
Time
2026-10-21 04:07:18 UTC
Median time
2026-10-21 03:59:12 UTC
Transactions
4
Size
3,714
Weight
13,278
Difficulty
0.0021387367
Bits
1e01d38f
Merkle root
a3d10c0de7fb2ac519502c16596baf29b1294f9fca5c5ca774a87ba6dfa32eef
Previous block
000001929e9433189200e272b2b7ba67d00e5a072d2a054a8b995d9e13f6a501
Next block
00000121bdb99a8c24aa2403835f5d75856fe9907a1719074486a736e57e75fc

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 28700 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
e3f3c435ef826a5c03b1f66c81d375d1… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
be2cdd7b104c…1109b993bd67 coinbase1250.00001152
e9c56143599c…bc5250e74c8a spends P2MR pays to P2MR120.999996560.00000344
8875515137af…f3787688759e spends P2MR pays to P2MR120.999996560.00000344
ce8dc152068d…530204339cf1 pays to P2MR220.019971960.00000464