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

Block 20855

Hash
0000008fef573215b21c41458d94df8c43204d2d89855fc761b0ba2b9618b9c3
Confirmations
20426
Time
2026-10-12 04:19:55 UTC
Median time
2026-10-12 04:11:47 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
152cd1701d8d18cb31bc7c856e116442ce41b5f5fc49fbb3c9470667d82a002b
Previous block
0000002f737696eb0ffaba99d09bfc0631b4bb6b9c27d80d392e62abf4044a86
Next block
000000b92a6702f730b597b8b8b8ded9308d86088867c247daa628e6f2b62e08

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 20855 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
9c09bf03d2f4d7478b767f2ebf495d6d… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
152cd1701d8d…0667d82a002b coinbase1250