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

Block 21068

Hash
00000079cb9c131f20814e638368692be014e2b9ed24d0634b71bf09bc1511ca
Confirmations
19892
Time
2026-10-12 10:14:43 UTC
Median time
2026-10-12 10:06:31 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
9b82d2128dbecbe15d34f802aa425f754a53ebe162f373363bde2f98f485f6ec
Previous block
000001350979ac084dfcc7ff9af2168808d9dc4f2c5deab9a232e85f997ffc47
Next block
000001201c3ec54ccc3b04a9d05e0726e4bc067bdde7d1191a0fa610ac69a400

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 21068 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
987f03e1ca61c8ff046d0d815838a895… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
9b82d2128dbe…2f98f485f6ec coinbase1250