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

Block 19795

Hash
0000005dc6ac088d5c91710c7dd4791e101bb8bf69e16cc9009caa2196fa1056
Confirmations
21015
Time
2026-10-10 23:00:01 UTC
Median time
2026-10-10 22:51:14 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
31a159e71027074a4035151f70dde6d423a20af062be129929f2e6588b1c2daa
Previous block
0000000b762d7aeea96f791da235117fdb8e541b2beda6b1ac5dad2c4b5545d0
Next block
0000009d8cb94d577f395f9c89af2fcbebb8571a0c5ca39deb7b9941d9aa054e

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 19795 is below the activation height 20000: nodes do not require this signature, and only log the result of checking it when run with -debug=validation. The block producer adds it from height 18000 on, so that nodes can check it before it is required.

Status
In the form M2 requires, followed by the signet solution push (the classical signature)
Signature
c8e119cc2d05d10b40bd2d98b3734b6d… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
31a159e71027…e6588b1c2daa coinbase1250