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

Block 25500

Hash
0000006bb4f11258dab69f2ffccfc8a203cefe2cf05fa4127586ff20b45f0a36
Confirmations
15291
Time
2026-10-17 12:19:01 UTC
Median time
2026-10-17 12:10:20 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
131c35fe3694cd71669704de3a50c3566e03ca2ba903a5e7a77c6b3b537cbcea
Previous block
0000012396aeda068c865fa9b6722bc765fc16c8a655aed4a40b70ff10c151b0
Next block
00000132fd8b56f3884d746e04a77d14cd401b6873b94abf50cf95b9341bb25d

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 25500 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
716c910f2fb42585b087b2572caaaeea… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
131c35fe3694…6b3b537cbcea coinbase1250