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

Block 27003

Hash
000000c37881e707d719f2b67b0f4f4d0aba249aae17ea5b39bb3cff18930849
Confirmations
13356
Time
2026-10-19 06:03:51 UTC
Median time
2026-10-19 05:55:48 UTC
Transactions
2
Size
2,977
Weight
11,596
Difficulty
0.0023644668
Bits
1e01a6ec
Merkle root
ef3559750e1ebb70a4fde3267f6cd346da27258c360154c2fc3374285f2a59d9
Previous block
0000005402c8503ac6f077b212b2c0b4255a1077ab3e877f2746f397dbf17975
Next block
00000095801db5bce1f9b63b61aa01e93ce06a5b7b843832f47fbf4462c09826

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 27003 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
b3901e2df0243fa8cd95df097f2ea990… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
03de989ad304…d544eae9b3ec coinbase1250.0000031
01100427de61…e285f9e22ddb pays to P2MR1221.99990990.0000031