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

Block 20950

Hash
0000004a235bdf968e7e999e3d575af713191bdcf58a34713e8d0cf183337686
Confirmations
21200
Time
2026-10-12 06:59:16 UTC
Median time
2026-10-12 06:51:00 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
37937094b52b1f72dd6d71fbf9af73d4d4c3b3fd9c0f16b64a6d52a28ab58978
Previous block
00000018102bceeb286f8408a50cb13d82bea73c0ba3fc68200fdbfe13236e89
Next block
000000e7604a0c4cab45235dc1eb9d9f351f74a7d50e44328053a9c08b874bd3

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 20950 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
aa2c058f81ce6b7d95b44431c646771c… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
37937094b52b…52a28ab58978 coinbase1250