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

Block 25297

Hash
000000aa54cf670ad4c99401dbbe6f26f0d76039049b30ede69f6683dfb327c1
Confirmations
15130
Time
2026-10-17 06:42:51 UTC
Median time
2026-10-17 06:34:46 UTC
Transactions
3
Size
3,182
Weight
12,212
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
3be586bb74f0e3f2e4e1c3ddeead16640f73ba436b0dd0c1dc690a04ed6b1493
Previous block
000001669e1aedbcd8a24d779fb0b007d99d5168eba1c4dea044231b3136e92e
Next block
00000072516f053c156e1e8dee9239f7add2903ebe5ec9d3e743ca550845f342

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 25297 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
4b2335af89cd2f321cb8a2b0e983c12f… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
c8dfbda426f3…392b14e2c1d4 coinbase1250.0000062
cadb2f19709c…1cb9ea57ea28 pays to P2MR1213.99988510.0000031
37de078edd1e…5889b7ea476f pays to P2MR1221.99990990.0000031