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

Block 19147

Hash
000000b2c8dacd3361a9af2e80bad285f7205f04e746592266b983c5404f9b82
Confirmations
22754
Time
2026-10-10 04:51:09 UTC
Median time
2026-10-10 04:43:03 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
c3ce51ecaccc3430c0a78c6ff49675f1b1a2ddef4ca84de762822c6ad34de1f8
Previous block
000000dcf9575e928de724667ef45db51270bcbc3cde3b731842298ba4f8c78e
Next block
000000f960964cb60cfe92d58a204bffa41b58f93c6c512067cf36e9596f93d7

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 19147 is below the activation height 20000: nodes do not require this signature, and only log the result of checking it when run with -debug=validation. The block producer adds it from height 18000 on, so that nodes can check it before it is required.

Status
In the form M2 requires, followed by the signet solution push (the classical signature)
Signature
482e9d56c90dc037b8f2ab522ef2f1d0… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
c3ce51ecaccc…2c6ad34de1f8 coinbase1250