Block 21921
- Hash
0000007c21abe0c0909112be4bcd9210fdfd885726fd0b1bf806791df3288e43- Confirmations
- 18844
- Time
- 2026-10-13 10:02:37 UTC
- Median time
- 2026-10-13 09:54:38 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
07c69b21c61611bf4cc0b3f7b6eb4cdda59f2d6164fef5770b963716797f857b- Previous block
- 0000002c415be0869857184a3e1e94cd7431dcfe039e9b4f408a713257f548b3
- Next block
- 0000000868ecd75e8f5270f383833516eab47ec97aaf1552c20431b28aa1bfef
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 21921 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
50616e380c40c5de32880414d466fe3e…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| 07c69b21c616…3716797f857b coinbase | 1 | 2 | 50 |