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

Block 21473

Hash
000000441a575224de47cdbd3b211207658fc0243a3ec44231717a03ca8cb38c
Confirmations
19853
Time
2026-10-12 21:33:16 UTC
Median time
2026-10-12 21:25:23 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
93194b81de82bd4ea3b0e8f1d056bde75fa6d778c39def1fc93222f4b2a51936
Previous block
00000056cff9cf2a56f8f1bbf0d7f3fb9b6d0e23ce4e793285e2c7dc13d9f7a9
Next block
000000d5ec0780a264da53a29b590e98418ddd476c41f43a4b3b3b749668021f

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 21473 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
ae7c59bebc7a113c72b2137ca48ccd1f… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
93194b81de82…22f4b2a51936 coinbase1250