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

Block 21612

Hash
0000012d6f0a4896f294397fb539df58b280156e65407060b06ccfaa0236252f
Confirmations
19585
Time
2026-10-13 01:26:41 UTC
Median time
2026-10-13 01:17:49 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
a7dd970d5dd4690f5bf6e92c163e517133eb513242355fcda1732dce8db68303
Previous block
000000630ab6c492f104ada179e2ac84988d8b66d267013b3ce7ec68a1109269
Next block
000000c53f2970a3ef5099e6e9e2f3daa62085e239de338e8a0dbf0016c7f3ed

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 21612 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
04faa5b01dc362144dccb3bcad09b601… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
a7dd970d5dd4…2dce8db68303 coinbase1250