Block 21813
- Hash
00000043880ee89b6b8161c2da5eb0421c52665500d43e0b9a869a0e594047bd- Confirmations
- 20235
- Time
- 2026-10-13 07:02:55 UTC
- Median time
- 2026-10-13 06:54:42 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
0359897f77e4adc0c4d853ecc88790f7285ed3ae28d56a5aeeb932478c7d9a93- Previous block
- 000000cf6253c79584727c8106e961d65e04ce5856af0eeedcd3cdc5a54a1abd
- Next block
- 000000df475dd0c9a0303533cce18b456b94f9705af37e5d7c7d1f3d04d467aa
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 21813 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
0ede8a5a884309fe40172245611b2bda…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| 0359897f77e4…32478c7d9a93 coinbase | 1 | 2 | 50 |