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

Block 21461

Hash
00000102a11682f43144c75c2cc043e1635c4f3cb8b8c6edd3ac7dfaee10dd74
Confirmations
20158
Time
2026-10-12 21:13:28 UTC
Median time
2026-10-12 21:05:17 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
7b67499d381f42e29997d786acabc7b04185f9ddc0e430671b1893843b72765f
Previous block
00000078f51982496babf3db44f89c2f30b330f5d575235e709540ca5fd6adb4
Next block
000000c696b6164a989db35e6063c1bbcd559c2e73e5129ec6c71facbca829fd

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 21461 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
cde18ec899953bf547adb2ea834a8f26… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
7b67499d381f…93843b72765f coinbase1250