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WEIGHT_SCORING.md

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RustChain Weight Scoring System

Rewards are based on rarity + preservation value, not just age.

Multiplier Tiers

Tier Multiplier Examples
Legendary 3.0x 386, 68000, MIPS R2000
Epic 2.5x PowerPC G4, 486, Pentium
Rare 1.5-2.0x G5, POWER8, DEC Alpha, SPARC
Uncommon 1.1-1.3x Core 2, K6, Ivy Bridge, Haswell
Common 0.8x Modern x86_64 (Zen3+, Skylake+)
Cheap 0.0005x ARM (Raspberry Pi, cheap SBCs)
Flagged 0x VMs, Emulators (fingerprint fail)

Full Multiplier Table

PowerPC (Highest - Preservation)

Architecture Multiplier Notes
G4 2.5x Vintage Mac, rare
G5 2.0x Last PowerPC Mac
G3 1.8x Early iMac/PowerBook
POWER8 1.5x Enterprise server, rare
POWER9 1.8x Modern POWER, rare

Vintage x86 (High - Age + Rarity)

Architecture Multiplier Notes
386 3.0x First 32-bit x86
486 2.9x DOS era
Pentium 2.5x Windows 95 era
Pentium Pro/II/III 2.0-2.3x Late 90s
Pentium 4 1.5x 2000s NetBurst
Core 2 1.3x First Core arch
Nehalem 1.2x 1st gen Core i
Sandy/Ivy Bridge 1.1x Old but common

Oddball x86 (Medium-High - Rarity)

Architecture Multiplier Notes
Cyrix 6x86/MII 2.3-2.5x Rare x86 clone
VIA C3/C7 1.8-2.0x Low-power x86
Transmeta 1.9-2.1x Code morphing

Modern x86 (Low - Common)

Architecture Multiplier Notes
Skylake+ 0.8x Modern Intel
Zen 3+ 0.8x Modern AMD
Unknown x86_64 0.8x Default modern

ARM (Very Low - Too Cheap)

Architecture Multiplier Notes
aarch64 0.0005x 64-bit ARM
armv7 0.0005x 32-bit ARM
Raspberry Pi 0.0005x $35 computer

Apple Silicon (Special)

Architecture Multiplier Notes
M1 1.2x First Apple Silicon
M2 1.15x Second gen
M3 1.1x Third gen
M4 1.05x Latest

Rationale

  1. Rarity matters more than age - POWER8 (2014) gets 1.5x because enterprise servers are rare. Ivy Bridge (2012) gets 1.1x because old Intel laptops are everywhere.

  2. ARM is penalized - Raspberry Pis cost $35. Anyone could spin up thousands. The 0.0005x multiplier prevents ARM farms.

  3. VMs get nothing - Fingerprint detection catches VMs/emulators. They get 0x multiplier (no rewards).

  4. Preservation incentive - Running a 386 or 68000 Mac is hard. Rewarding vintage hardware encourages preservation.