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

Block 20900

Hash
000000c198e681843d8d1129ab4d12573a2ef38fa531058ab273d1b305f216a7
Confirmations
21308
Time
2026-10-12 05:35:13 UTC
Median time
2026-10-12 05:26:25 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
d0112e918e7e7a08fdf65e5410c4b7fc1f3179064c756e490e5b8ad84ad7d9c9
Previous block
00000091ec4d87f5e37b4e8049822781fff45fb43a4d73a015800cf6a256ff24
Next block
000000643f7d52cc193efe404c9c096d2e9f2f49095bc8abb3c86ec099840984

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 20900 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
0a17f1d44e381d956b58e909d272cddb… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
d0112e918e7e…8ad84ad7d9c9 coinbase1250