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

Block 20875

Hash
000001217da37465c9e3a299a57e0e3cb39a9e159fc0c9fa293c3fddc8b4d10a
Confirmations
21340
Time
2026-10-12 04:53:34 UTC
Median time
2026-10-12 04:44:57 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
cc970e60ec9c81eece771b18a1c93e40a9f6bfecaa30afaa11a6291f2e851306
Previous block
000000581137fbe3c4acaddedd69c0df5bc0226145f10fc58c152e15dcbd732c
Next block
0000006d03d72ce98f8d59a33c967eacd834979e7860bfc042a2c1eb6b587650

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 20875 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
c15a40830b234046939d3e89681334d5… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
cc970e60ec9c…291f2e851306 coinbase1250