Block 21157
- Hash
000000fb3bf1a59d30aee6e4919daf061e6b3e0947f1fa7fd61befe12d1d191d- Confirmations
- 19970
- Time
- 2026-10-12 12:40:43 UTC
- Median time
- 2026-10-12 12:32:43 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
5774a234e38ad03ac660fd8a8d0e0a16d42c4935783e7b696d1d4224d2f484e2- Previous block
- 0000010552341ed51b87d2910bd9dd0c6e45524eeeb00b55c52f040906c98983
- Next block
- 000000652af35f74c9ac99cb2fa986208cf72de768fd7ad4c25009bd145be809
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 21157 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
522504c46460d32bce8d5384e3a853bc…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| 5774a234e38a…4224d2f484e2 coinbase | 1 | 2 | 50 |