Block 21878
- Hash
000000ce8f894575fdfa48fb23bb9a99162781e5993ad1243e3d46551cf3881c- Confirmations
- 20057
- Time
- 2026-10-13 08:49:22 UTC
- Median time
- 2026-10-13 08:41:01 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
94fc2b8d6dc342557f1e1dd0898237ae80549501690ff730660ab328c4de2c70- Previous block
- 0000003452d5c249c876991ab78006cfe46791ed910816c4c0d3fedc4529d2df
- Next block
- 000000ae98c265583d47306cab8f3d30b8afcd8e10fcaedc2a44a352f3932016
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 21878 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
26ee9d2f6d4f4ff1c5c9450b66147ad2…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| 94fc2b8d6dc3…b328c4de2c70 coinbase | 1 | 2 | 50 |