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

Block 39139

Hash
000000cdf5f729ad20f81e1e1adfc1f30325751ddf81fa63c89a33966f17543b
Confirmations
2125
Time
2026-11-01 19:38:33 UTC
Median time
2026-11-01 19:30:39 UTC
Transactions
2
Size
3,047
Weight
11,669
Difficulty
0.0015097403
Bits
1e02965b
Merkle root
599aab68cc2bcaa574b55d96eea81ab28cd08ee46df607e494fdc77f20d8c253
Previous block
000001dca65aaa91c18c9c92ecf11914fc68fe18877d37df409dc1447cf9ff6d
Next block
000000d00f45efca68057633d9aaaf9ecea39b5c195278cbf06bca8157fdeff0

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 39139 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
1b5122e6881a7b4518e63f06c1d3d4f0… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
883ac43a5847…966336aa8cb0 coinbase1250.00000344
db7c93440945…0b6254f0710d spends P2MR pays to P2MR120.99598280.00000344