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

Block 21347

Hash
000000bb702f9b1ab7dd31d6cb8cadd855c331fc6c841e3fc777b2130bf0dcb8
Confirmations
20388
Time
2026-10-12 18:03:36 UTC
Median time
2026-10-12 17:55:28 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
ec06b5ffab15e3fc6ea64bc6806bd7095cd2b1c66c870e04d334f2e7f108e6c2
Previous block
0000002a253d17a48ba68caa1e53879702852ed5c37d85c69a1fd64281b61045
Next block
000001391108bb407657c1fe72762e0c0e9425cf09f9279a13df767c3567cc7d

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 21347 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
bcfc1017948553c6e98de6b4dfe518e0… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
ec06b5ffab15…f2e7f108e6c2 coinbase1250