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

Block 21343

Hash
0000013847a70aca4177d693cdd7b4803f108210df3cbeae92b12664f00a3f2d
Confirmations
20243
Time
2026-10-12 17:57:07 UTC
Median time
2026-10-12 17:48:46 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
fc625c9cad616ed0f4c97ed6a2105632b6fa17adbf7b145a773b52a86ff15850
Previous block
000000ee606f0ec36cba4b5ff8aa06f8ae7d9c355c840d7fb0633d27fe05e720
Next block
000000bd88173a7e17268a5cefd6c556a7a6da65645ea3f53db76c8238a2a184

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 21343 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
4e4b654ae15d1ab2cd27be05c8907fa4… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
fc625c9cad61…52a86ff15850 coinbase1250