Block 21778
- Hash
0000005fc3a57a1665f3266d14a809b2e46606ff1eda1ae4aedb3318aa6ab45f- Confirmations
- 19332
- Time
- 2026-10-13 06:05:23 UTC
- Median time
- 2026-10-13 05:57:03 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
475ad375dccd9f5deeef6daafac62ac2fa0cc60063a764ea4d8ed6c7d2229b4a- Previous block
- 00000108470786b5223e03a2757a9975965610c54abac444f18621c9f0fc1357
- Next block
- 00000062ed1df207ae7b95516190fc52e31e51844d3637588e9abaadf1fd1f31
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 21778 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
a86512cd5560dd013a7bd3b032f8e6f1…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| 475ad375dccd…d6c7d2229b4a coinbase | 1 | 2 | 50 |