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They describe the structural capacity of each settlement path given the current message formats, account layouts, and Solana transaction envelope.
Unilateral commitments
| Shape | Message Bytes | Serialized Tx Bytes | Headroom vs Packet |
|---|---|---|---|
| Legacy unilateral commitment | 103 | 627 | 605 |
| Current V4 typical unilateral commitment | 28 | 552 | 680 |
| Current V4 conservative unilateral commitment | 29 | 553 | 679 |
Bundle settlement
| Shape | Largest Entry Count | Serialized Tx Bytes | Signed Message Bytes |
|---|---|---|---|
| Current V4 typical bundle | 6 | 1113 | 168 |
| Current V4 conservative bundle | 6 | 1119 | 174 |
Cooperative clearing
| Mode | Participants | Channels | Serialized Tx Bytes | Message Bytes | Auth Envelope Bytes | Remaining Bytes |
|---|---|---|---|---|---|---|
| Current v0 + ALT balanced round | 7 | 7 | 1119 | 63 | 835 | 113 |
| Current v0 + ALT overall fit | 6 | 30 | 1143 | 153 | 815 | 89 |
| Hypothetical BLS v0 + ALT balanced round | 32 | 32 | 662 | 213 | 321 | 570 |
| Hypothetical BLS v0 + ALT overall fit | 13 | 139 | 1230 | 603 | 711 | 2 |
How to read this
- Serialized Tx Bytes is the full on-wire transaction size, including all accounts and the Ed25519 verify instruction.
- Message Bytes is the size of the signed body only.
- Auth Envelope Bytes is the portion of the transaction dedicated to Ed25519 signatures and their pre-instruction data.
- Remaining Bytes is the headroom left before the Solana packet limit.
- The BLS rows are projections, not implemented wire formats today. They are included to illustrate roughly how much denser rounds could become under signature aggregation. See Roadmap.