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

Block 19511

Hash
0000003c26544fb0190bd526d4639d9d5d9eef1b82a5f24908d61ea546124803
Confirmations
22627
Time
2026-10-10 15:01:23 UTC
Median time
2026-10-10 14:53:22 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
5d5ac71142bd83e0a626099e81e4735550ef330dd0c781f599dd7571aadda240
Previous block
0000003e9d30243da8fbe42f83382e6661cf383810a016246cd192205c797a56
Next block
000000ddb4a5563b642660ae6a3e9b44e529c81e9240f49cce9fcf74ba8909a7

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 19511 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
02b3f547f34a3820a4b0789501cb7d6d… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
5d5ac71142bd…7571aadda240 coinbase1250