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

Block 18948

Hash
00000061d51acca946ea862efe84fdf9425461da6533020ebaca777fdd2d14da
Confirmations
22229
Time
2026-10-09 23:11:07 UTC
Median time
2026-10-09 23:03:04 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
77d807e8a98794fae4b20285f09800f833be24b07a74088d818265a5eeb096f5
Previous block
000000e300c6d5ad20d445bfd42ec2ee22bdd9c4199ad90811f55e73a6cff954
Next block
000000d1f04b9bcd77028700c6bd0de86c721be1320505999f874d76e2a226b1

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 18948 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
089e8f58c8fe0414e73d2fa989e2505f… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
77d807e8a987…65a5eeb096f5 coinbase1250