Block 21616
- Hash
000000f105aa9b67cf1c98d5093d9018473df171d766db04457ecad27b90f037- Confirmations
- 19887
- Time
- 2026-10-13 01:33:21 UTC
- Median time
- 2026-10-13 01:25:00 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
e1c4b8556f3237104395be0f01c0c12fd640fda2593c9fe5ae89c6557303ce3a- Previous block
- 000000fe217f33a6c80116710e606587124cef9de2d1a319fc205443f7723573
- Next block
- 000000f96d38e89a163bd42d624583623a96a075d5f5255127b8772382c3d1b4
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 21616 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
a7e61f94bee48b065b393b5c6a39203d…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| e1c4b8556f32…c6557303ce3a coinbase | 1 | 2 | 50 |