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

Block 19047

Hash
00000025a7f3c4556b7e75d715d1358b78b1429f02d6cb5a4d3dd71c2a9e5872
Confirmations
22772
Time
2026-10-10 01:59:46 UTC
Median time
2026-10-10 01:51:05 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
8ab4cdab0a5093c1e43e7a8b922436c533d553d48dfd2162c1558fb82c4e11eb
Previous block
000001195c2b515dd5868ec6861e875d34aeaeaf8874ec187a072aef636be312
Next block
000000d76e6a014fce0e44a8cee6be235726047127d3fa0f23a1b7dc36543855

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 19047 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
a6777dede6c65a7a29c9b00251087d53… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
8ab4cdab0a50…8fb82c4e11eb coinbase1250