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

Block 21779

Hash
00000062ed1df207ae7b95516190fc52e31e51844d3637588e9abaadf1fd1f31
Confirmations
19431
Time
2026-10-13 06:06:56 UTC
Median time
2026-10-13 05:58:45 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
2c0a2e8447dd0fea37f77152da8567d7835f8598a3d8b530661d5871e177fc03
Previous block
0000005fc3a57a1665f3266d14a809b2e46606ff1eda1ae4aedb3318aa6ab45f
Next block
00000130e25d49c44ee6c285d9c3128d58345456be211870499eb5cd621e12fd

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 21779 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
9102ae46e95e141afa59ff517ddeaacf… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
2c0a2e8447dd…5871e177fc03 coinbase1250