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

Block 20619

Hash
000000a552c3cab06d9c6760a2c57cae07ed0e7121f1d6b588812075126afe07
Confirmations
20906
Time
2026-10-11 21:50:07 UTC
Median time
2026-10-11 21:41:45 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
c69afba67bf8d97d60dea7cc1d011bde4607aa11ec0ddf7abee5054053e89038
Previous block
0000003956e36c699358adc1b3749a06b984d1630e0267c825c46fe68eca21d8
Next block
0000013d288147132cab9b176169750df4ed6e33e173102315cd41f86db26fbe

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 20619 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
071703088a249a71653d8a724f5d7b4a… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
c69afba67bf8…054053e89038 coinbase1250