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

Block 21153

Hash
00000080a385610262fd50d899615ab7984a7de5d9b7ecade194d533583e61fc
Confirmations
19728
Time
2026-10-12 12:34:19 UTC
Median time
2026-10-12 12:25:50 UTC
Transactions
2
Size
6,706
Weight
15,325
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
0b374de7d34d6e869fb8f07febfe962dae272d19fabdc5142427cc8c63e543ef
Previous block
0000004f2372d0a13541f1c45ea8e81c92f5f9e0b5819cf3d817cc8c4d029bff
Next block
00000025089b7e4c091d54e413cf980fb3bdd6a476d2b869e6cc91b37c26db92

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 21153 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
704f969515b63b397401294f320d073f… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
343c372eb5d7…109aa59417f9 coinbase1250.00002174
38d459db40a8…399215dade1c spends P2MR pays to P2MR120.999978260.00002174