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

Block 27564

Hash
0000000953c16d537cf766ee55737dff3e7fd8a7400b46519d010b8629c0db78
Confirmations
14540
Time
2026-10-19 21:17:45 UTC
Median time
2026-10-19 21:09:43 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0023644668
Bits
1e01a6ec
Merkle root
1cabb9953b95bf4d5f8301f703e6976ce7843f3a42d2c50ddbd972ea6975e95d
Previous block
00000178b1f74c7113bb1a257ea26d71685c6598bd61c76c1bdb7c6962ec99f7
Next block
000000d0a1a5372806521663142f9d0a15ab937ab10ec0d65e3ead5f0b5f5607

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 27564 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
a592e046dfd984599c32aae0c9ebadd9… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
1cabb9953b95…72ea6975e95d coinbase1250