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

Block 21964

Hash
00000074be3905953a5cc0d3e9e4f88384d8b0a796486234eb3f44b47bab98e4
Confirmations
19588
Time
2026-10-13 11:15:03 UTC
Median time
2026-10-13 11:06:43 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
11a93454a5994a8777989fae5071a6d21a298d6e34b2f464028892e19b579741
Previous block
00000021b1e856b4f719fd72603c1900cd12e106f026b5a86a4e6d266f6b909c
Next block
000000c8e585fc3040cc543c40d8d4f84f61be2d1eb72bc426f873854d7c7aa4

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 21964 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
8ad663488f76266172dfbca33fdde03d… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
11a93454a599…92e19b579741 coinbase1250