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

Block 21416

Hash
000000926195f3e79e178b04d781bdef3e0d219b9cafd87bacc3b5782fe132d3
Confirmations
20738
Time
2026-10-12 19:58:10 UTC
Median time
2026-10-12 19:50:21 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
2bd2ad93e2bf9a00c4e2b9cd545489f42298f3bda5277d26dbdcde0074285582
Previous block
00000037aa7acbb7445024d46829d6f8607812991ec82fdbca769e9afeeb616a
Next block
0000006755ef18c651036a65e09299fc1eccd8c31b1893c024a4ed5813f3f564

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 21416 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
2d21fcf612c1943247754585880e4eea… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
2bd2ad93e2bf…de0074285582 coinbase1250