Constants & domains

Source-derived protocol, note, Merkle, fee, packet and Poseidon domain constants for Core v0.1.0.

Protocol constants

Constant	Value
Core protocol version	`0.1.0`
Note encoding version	`2`
Encrypted note payload version	`1`
Note plaintext / encrypted payload	145 / 186 bytes
CPMM fee denominator	10,000
Accepted CPMM fee tiers	100, 200, 300 bps
Protocol / creator / LP nominal split	50% / 20% / 30% remainder
Shield fee	5 bps
Permanently locked LP	1,000 LP base units (9 decimals)
Merkle depth / capacity	16 / 65,536 leaves per generation
Accepted root history	32 roots
Page depth / page capacity	12 / 4,096 leaves
Pages per generation	16
Solana transaction packet limit	1,232 bytes
Groth16 curve / proof size	BN254 / 256 bytes

Domain separators

Purpose	Hex value
Protocol / note commitment / Private Swap / Unshield	`0x5a4b43504d4d0003`
Owner commitment	`0x5a4b43504d4f0003`
Nullifier	`0x5a4b43504d4e0003`
SDK/Poseidon encoding label	`zkcpmm-v2/poseidon/bn254-x5/circom`

The labels and values are not secrets. Domain separation is part of the hash construction. For the derivations and limb ordering, see Poseidon, Note model and Nullifiers.

Source baseline: frozen Core v0.1.0 / SDK v0.1.1.