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

Block 37918

Hash
00000004b8677edce30e6ffd3fa5c7be5f7c0f1c48db3b973503cd2c571f2e23
Confirmations
2874
Time
2026-10-31 11:17:03 UTC
Median time
2026-10-31 11:09:04 UTC
Transactions
1
Size
2,773
Weight
10,984
Difficulty
0.0016063508
Bits
1e026e85
Merkle root
576fd1c9f61071f7dbd31564f9b003e52f8c9c7f313bebfd2c5240ec247804d6
Previous block
00000024ceac74f7cdb965b508969787fcbb77380e02c45fa62dad5cacea67d2
Next block
0000008d834e4f0724c61b01f0c72d535e92f0b8e3fd629de592b24bb192a3d8

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 37918 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
ce2e2f0a4b9a457ffcb79f937b4335f9… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
576fd1c9f610…40ec247804d6 coinbase1250