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

Block 30504

Hash
000000cb7685dae3991f1c0fea3ab8297d355bd7a0ab89036ac409a4576e2162
Confirmations
10546
Time
2026-10-23 04:54:10 UTC
Median time
2026-10-23 04:45:46 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0019776743
Bits
1e01f9a3
Merkle root
c4c1c86f58c0b8be521c1762446e122fe5634fafb738948c55628f82378a20a1
Previous block
000000c0f202199837df29a16b10416a26bfedf7325faad5406595079c87b593
Next block
0000007b93ca29d3af218ef94eda09f790ac20df84eff85d7159c989b3ee46b9

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 30504 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
34d5d4b183983ff86914da963fa916cd… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
c4c1c86f58c0…8f82378a20a1 coinbase1250