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

Block 21276

Hash
000000d52ac0201d27c186331a245b3f0a1ec2ed1fec48b8d8b5c28b0e30f6fc
Confirmations
19602
Time
2026-10-12 16:00:36 UTC
Median time
2026-10-12 15:52:07 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
871d9178264102dcdf639e4596f77a5dc0ff77b5fc3cc416569ad0aaa5fbd0ed
Previous block
0000001b47561072725533264dce5353c2a80a4878e2c065d25505c49578b88c
Next block
000000e8290a80d1e222d9750fd255db4ad07c1301b724bbcb249eee34034b5a

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 21276 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
a1b8c69ef67b7d23721db0b90a97eb68… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
871d91782641…d0aaa5fbd0ed coinbase1250