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

Block 20917

Hash
0000002894b33d0048a31582fbc80ce9b7bbf80b2818a62e9198619718409b6d
Confirmations
21351
Time
2026-10-12 06:04:15 UTC
Median time
2026-10-12 05:55:47 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
d9c4b37eaae25fd0d9504efc5dc7ed8072a6ee63f0234b63b24a09078a83fbc9
Previous block
0000006dbbdb3a1ea4fb9d6e8ed4cb6374ff58ac906f1df6cc2e6f2ad967515c
Next block
0000003520f9ca61ab7e1557e077844d8e6322a1840e21e5510d1e9f34957845

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 20917 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
19c71bc4c5424b8230fcdbb7b4c907f9… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
d9c4b37eaae2…09078a83fbc9 coinbase1250