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

Block 20903

Hash
0000011e3d9a642efb6f7d58178cf0a0c73bd70a6fe839ececcbad14eaaf3316
Confirmations
21314
Time
2026-10-12 05:40:25 UTC
Median time
2026-10-12 05:31:50 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
2089f93410de8bcf77a9322157ce0337b7e4683c33696ab163baa99a4eef0fc0
Previous block
00000004f6ae36a23fe0121314ac1128b2c7ffeeaf59286e343b1768e23ed26c
Next block
000001037437d9612a4909413dd0e40afc1f908e4f9b55c2467669ff2be7bc1d

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 20903 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
68f44b0e740955dd670b0f4c393fd087… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
2089f93410de…a99a4eef0fc0 coinbase1250