Block 19902
- Hash
000000616fb7586cac9b778e6703342d1a6a02ecd899c88a6bf776d3fbcd840d- Confirmations
- 22249
- Time
- 2026-10-11 01:55:12 UTC
- Median time
- 2026-10-11 01:46:43 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0035089589
- Bits
1e011cfb- Merkle root
65168cc3d49355bdf2d1b305f71480b1f24e0c3d8cd23389a49055ba4e058463- Previous block
- 000000211d674728e16ee61ea16d62d3a1ed7fb2a42e4fdd1abe7e4c7723efa1
- Next block
- 00000107c606a84bec7f0e664b12080195e60ae425265ecd5e49c8875d526feb
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 19902 is below the activation height 20000: nodes do not require this signature, and only log the result of checking it when run with -debug=validation. The block producer adds it from height 18000 on, so that nodes can check it before it is required.
- Status
- In the form M2 requires, followed by the signet solution push (the classical signature)
- Signature
809dca9868de6ac1e4961fb78567c0c0…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| 65168cc3d493…55ba4e058463 coinbase | 1 | 2 | 50 |