Research and implementation of 50+ vintage CPU architectures spanning 1979-2012 for the RustChain antiquity detection system. This document provides comprehensive detection patterns, multipliers, and historical context.
- cpu_vintage_architectures.py - Complete detection module with regex patterns
- VINTAGE_CPU_INTEGRATION_GUIDE.md - Integration instructions
- This summary - Research findings and recommendations
| Architecture | Years | Multiplier | Key Models |
|---|---|---|---|
| i386 | 1985-1994 | 3.0x | 80386DX, 386SX (first 32-bit x86) |
| i486 | 1989-1997 | 2.8x | 486DX, 486DX2, 486DX4 |
| Pentium P5 | 1993-1999 | 2.6x | Original Pentium, Pentium MMX |
| Pentium Pro | 1995-1998 | 2.4x | First P6 architecture, server-focused |
| Pentium II | 1997-1999 | 2.2x | Klamath, Deschutes, early Celeron |
| Pentium III | 1999-2003 | 2.0x | Katmai, Coppermine, Tualatin, SSE |
Detection Strategy:
/proc/cpuinfopatterns:"i386","i486","Pentium","Pentium Pro","Pentium II","Pentium III"- Windows Registry:
ProcessorNameStringcontains exact model names - Clock speeds distinguish generations (Pentium: 60-233MHz, PII: 233-450MHz, PIII: 450-1400MHz)
Rarity in 2025:
- 386/486: Extremely rare (<0.01% of active systems)
- Pentium: Rare retro enthusiasts only
- P2/P3: Occasional legacy industrial systems
| Vendor | Architecture | Years | Multiplier | Notes |
|---|---|---|---|---|
| Cyrix | 6x86/MII/MediaGX | 1995-1999 | 2.5x | Pentium competitor, budget PCs |
| VIA | C3 (Samuel/Ezra) | 2001-2005 | 1.9x | Low-power embedded |
| VIA | C7 (Esther) | 2005-2011 | 1.8x | Enhanced efficiency |
| VIA | Nano (Isaiah) | 2008-2011 | 1.7x | Final VIA mainstream CPU |
| Transmeta | Crusoe | 2000-2004 | 2.1x | Software x86 emulation, code morphing |
| Transmeta | Efficeon | 2004-2007 | 2.0x | 2nd-gen code morphing |
| IDT/Centaur | WinChip | 1997-2001 | 2.3x | Budget competitor to Pentium |
Detection Strategy:
"Cyrix","6x86","MediaGX"in CPU string"VIA C3","VIA C7","VIA Nano""Transmeta","Crusoe","Efficeon""WinChip","IDT","Centaur"
Historical Significance:
- Cyrix 6x86: Outsold Intel Pentium in some markets (1996-1997)
- Transmeta: Revolutionary code morphing technology, used in Sony VAIO, IBM ThinkPad
- VIA C7: Dominated thin clients and embedded systems (2005-2010)
| Architecture | Years | Multiplier | Description |
|---|---|---|---|
| K5 | 1996-1997 | 2.4x | First AMD-designed x86, competed with Pentium |
| K6 | 1997-1999 | 2.2x | K6, K6-2, K6-III, introduced 3DNow! SIMD |
Detection Strategy:
"AMD-K5","K5-PR75","K5-PR100"(performance rating, not MHz)"AMD K6","K6-2","K6-III","K6/2","K6/3"
Market Impact:
- K6-2: Outsold Intel Pentium II in budget market (1998-1999)
- 3DNow!: AMD's SIMD extension, competitor to Intel SSE
| Model | Years | Multiplier | Systems |
|---|---|---|---|
| 68000 | 1979-1990 | 3.0x | Original Mac, Amiga 500/1000, Atari ST |
| 68010 | 1982-1988 | 2.9x | Enhanced 68000, Mac 512K |
| 68020 | 1984-1990 | 2.8x | Mac II, Amiga 1200, 32-bit |
| 68030 | 1987-1994 | 2.6x | Mac IIx/SE/30, Amiga 3000, on-die MMU |
| 68040 | 1990-1996 | 2.4x | Quadra, Amiga 4000, on-die FPU |
| 68060 | 1994-2000 | 2.2x | Amiga accelerators, rare Macs |
Detection Strategy:
- Linux/UAE:
/proc/cpuinfoshows"cpu : 68040","fpu : 68040" - Mac OS Classic: Gestalt Manager returns CPU type
- String patterns:
"68000","MC68000","m68000","Motorola 68030"
Cultural Significance:
- 68000: Powered original Mac (1984), defined 1980s personal computing
- 68030: Mac SE/30 (1989) - most beloved compact Mac
- 68040: Amiga 4000 (1992) - multimedia workstation era
Rarity in 2025:
- Extremely rare, mostly in museums or vintage collections
- Amiga community still active with emulators (UAE, FS-UAE)
- Mac 68K systems preserved by vintage Mac enthusiasts
| System | CPU | Years | Multiplier | OS |
|---|---|---|---|---|
| AmigaOne G3 | 750/7457 | 2002-2005 | 2.4x | AmigaOS 4.0 |
| AmigaOne G4 | 7450/7447 | 2003-2006 | 2.3x | AmigaOS 4.0+ |
| Pegasos I | G3 | 2002-2004 | 2.3x | MorphOS, Linux |
| Pegasos II | G4 | 2004-2006 | 2.2x | MorphOS, AmigaOS 4 |
| Sam440 | PPC440EP | 2007-2010 | 2.0x | AmigaOS 4.1 |
| Sam460 | PPC460EX | 2010-2012 | 1.9x | AmigaOS 4.1 FE |
Detection Strategy:
"AmigaOne","Pegasos","Sam440","Sam460"in CPU/system strings- MorphOS:
uname -mreturns PowerPC variant - AmigaOS 4:
Versioncommand shows CPU
Community Status:
- Active niche community (AmigaOS 4 still updated in 2024)
- Sam460 available as embedded board
- Pegasos II highly collectible
| Generation | Years | Multiplier | Clock Speed |
|---|---|---|---|
| 21064 (EV4) | 1992-1995 | 2.7x | 150-200 MHz |
| 21164 (EV5/EV56) | 1995-1998 | 2.5x | 300-600 MHz |
| 21264 (EV6/EV67/EV68) | 1998-2004 | 2.3x | 500-1250 MHz |
Historical Notes:
- First 64-bit CPU architecture
- Fastest integer performance in 1990s (beat Pentium II/III)
- Used in Cray supercomputers, Digital Unix, OpenVMS
- Died after Compaq acquired DEC (1998), ended by HP (2004)
| Generation | Years | Multiplier | Systems |
|---|---|---|---|
| SPARC v7 | 1987-1992 | 2.9x | Sun 4, SPARCstation 1 |
| SPARC v8 | 1990-1996 | 2.6x | MicroSPARC, SuperSPARC |
| SPARC v9 | 1995-2005 | 2.3x | UltraSPARC I/II/III |
| UltraSPARC T1 | 2005-2010 | 1.9x | Niagara, CMT (8 cores, 32 threads) |
| UltraSPARC T2 | 2007-2011 | 1.8x | Niagara 2 (8 cores, 64 threads) |
Detection Strategy:
/proc/cpuinfoon Solaris/Linux:"cpu : TI UltraSparc II (BlackBird)"uname -preturns"sparc"or"sparc64"
Market Position:
- Dominated Unix workstation market (1990-2000)
- Oracle SPARC M-series still sold until 2020
- Legacy servers still running in enterprise
| Generation | Years | Multiplier | Notable Uses |
|---|---|---|---|
| R2000 | 1985-1988 | 3.0x | First commercial RISC CPU |
| R3000 | 1988-1994 | 2.8x | PlayStation 1, SGI Indigo |
| R4000/R4400 | 1991-1997 | 2.6x | 64-bit, SGI workstations |
| R5000 | 1996-2000 | 2.3x | SGI O2, Indy, Nintendo 64 |
| R10000-R16000 | 1996-2004 | 2.4x | SGI Origin, Octane, superscalar |
Detection Strategy:
/proc/cpuinfo:"cpu model : MIPS R5000 Revision 2.1"- SGI IRIX:
hinvcommand shows CPU
Cultural Impact:
- R3000: Inside original PlayStation (1994) - 100M+ units
- R4000: First 64-bit commercial CPU (1991)
- R5000: Nintendo 64 (modified RCP, 1996) - 33M+ units
- R10000: SGI workstations used for Jurassic Park, Titanic CGI
| Generation | Years | Multiplier | Description |
|---|---|---|---|
| PA-RISC 1.0 | 1986-1990 | 2.9x | PA7000, HP 9000 Series 700/800 |
| PA-RISC 1.1 | 1990-1996 | 2.6x | PA7100/7200, HP workstations |
| PA-RISC 2.0 | 1996-2008 | 2.3x | PA8000-PA8900, 64-bit, final gen |
Detection Strategy:
- HP-UX:
uname -mreturns"9000/785"or similar /proc/cpuinfoon Linux:"cpu family : PA-RISC 2.0"
Enterprise Legacy:
- HP-UX still supported until 2025
- Mission-critical banking/telecom systems
- PA-8900 (2005) was final PA-RISC CPU
| Generation | Years | Multiplier | Notes |
|---|---|---|---|
| POWER1 | 1990-1993 | 2.8x | RIOS, original POWER |
| POWER2 | 1993-1996 | 2.6x | RS/6000, first superscalar |
| POWER3 | 1998-2001 | 2.4x | 64-bit, pSeries |
| POWER4/4+ | 2001-2004 | 2.2x | First dual-core CPU (2001!) |
| POWER5/5+ | 2004-2007 | 2.0x | SMT, LPAR virtualization |
| POWER6 | 2007-2010 | 1.9x | High frequency (5 GHz) |
| POWER7/7+ | 2010-2013 | 1.8x | TurboCore, 8 cores, SMT4 |
Detection Strategy:
- AIX/Linux:
/proc/cpuinfoshows"cpu : POWER7 (architected)" prtconfon AIX shows CPU details
Innovation Leadership:
- POWER4 (2001): First commercial dual-core CPU (Intel followed in 2005)
- POWER5 (2004): Hardware virtualization (pre-dates Intel VT-x)
- POWER6 (2007): Highest clock speed ever (5.0 GHz)
- 68000 (1979): Defined personal computing (Mac, Amiga, Atari)
- 386 (1985): First 32-bit x86, enabled modern operating systems
- MIPS R2000 (1985): First commercial RISC, influenced ARM
- 486 (1989): First pipelined x86, on-die cache
- 68020 (1984): First 32-bit 68K, Mac II era
- SPARC v7 (1987): Sun workstation dominance
- POWER1 (1990): IBM's RISC workstation entry
- Pentium (1993): Superscalar x86, 100M+ units
- 68040 (1990): Peak 68K performance
- Alpha 21064 (1992): 64-bit performance king
- MIPS R4000 (1991): First 64-bit RISC
- Pentium III (1999): Last pre-NetBurst Intel
- K6 (1997): AMD's 3DNow! innovation
- PA-RISC 2.0 (1996): HP's 64-bit workstation
- POWER4 (2001): First dual-core
- VIA Nano (2008): Last x86 alternative
- UltraSPARC T1 (2005): CMT innovation
- POWER7 (2010): Modern POWER before current era
- Intel x86 (386-PIII): Well-documented patterns in
/proc/cpuinfo - AMD K5/K6: Distinct branding in CPU strings
- PowerPC Amiga: Unique system names (AmigaOne, Pegasos, Sam)
- RISC workstations: Requires OS-specific detection
- Oddball x86: May need vendor ID checks
- IBM POWER: AIX vs Linux detection differs
- Motorola 68K: Emulators (UAE) may masquerade as real hardware
- Transmeta: Code morphing presents as generic x86
- VIA CPUs: May report as generic "VIA" without model
-
Cross-reference multiple sources:
/proc/cpuinfomodel name- CPU vendor ID (cpuid instruction)
- System DMI/SMBIOS data
- Boot dmesg logs
-
Performance fingerprinting:
- Real 486 cannot do 1M ops/sec
- Real 68000 has predictable cache patterns
- Alpha 21064 has distinct memory latency
-
Hardware entropy checks (existing RIP-PoA):
- Vintage CPUs have higher jitter variance
- Real oscillators drift over 30+ years
- Thermal patterns differ from modern silicon
-
Known emulator detection:
- QEMU reports vendor ID "QEMU Virtual CPU"
- UAE emulator has distinct filesystem paths
- VirtualBox/VMware have CPUID signatures
- Pentium II/III (most likely vintage hardware still running)
- K6 series (AMD retro enthusiasts)
- PowerPC Amiga (active community)
- 386/486 (extremely rare, high multiplier)
- Pentium/Pentium Pro (collectible)
- Cyrix/VIA/Transmeta (oddball x86)
- Alpha (DEC enthusiasts, emulators)
- SPARC (Oracle legacy servers)
- MIPS (SGI collectors)
- PA-RISC (HP-UX systems)
- POWER (AIX systems)
-
Modern Baseline:
detect("AMD Ryzen 9 7950X") → 1.0x (modern, use existing code)
-
Vintage Intel:
detect("Intel 80386DX @ 33MHz") → 3.0x (ancient) detect("Intel Pentium III CPU 1000MHz") → 2.0x (vintage)
-
Oddball x86:
detect("Cyrix 6x86MX PR200") → 2.5x (oddball) detect("VIA C3 Samuel 2") → 1.9x (low-power)
-
68K:
detect("MC68040 @ 33MHz") → 2.4x (classic Mac/Amiga)
-
RISC:
detect("Alpha 21064 @ 150MHz") → 2.7x (DEC workstation) detect("MIPS R10000 @ 195MHz") → 2.4x (SGI)
Run demo script to verify all 50+ architectures:
python3 cpu_vintage_architectures.pyExpected output:
- 50+ CPU detections with years 1979-2012
- Multipliers from 1.7x to 3.0x
- Sorted ranking by multiplier
rustchain-complete/
├── cpu_architecture_detection.py # Modern (2000-2025)
├── cpu_vintage_architectures.py # Vintage (1979-2003) ← NEW
├── VINTAGE_CPU_INTEGRATION_GUIDE.md # Integration docs ← NEW
└── VINTAGE_CPU_RESEARCH_SUMMARY.md # This file ← NEW
def unified_detection(brand_string):
# 1. Try vintage detection first (more specific patterns)
vintage_result = detect_vintage_architecture(brand_string)
if vintage_result:
return vintage_result
# 2. Fall back to modern detection
return detect_cpu_architecture(brand_string)Add to rustchain_v2_integrated_v2.2.1_rip200.py:
from cpu_vintage_architectures import detect_vintage_architecture
def validate_attestation(data):
brand = data.get("device", {}).get("cpu_brand", "")
# Check if vintage CPU claim is valid
vintage = detect_vintage_architecture(brand)
if vintage:
vendor, arch, year, multiplier = vintage
# Apply time decay to vintage bonuses
# Validate against blockchain genesis timestampThis research provides comprehensive vintage CPU detection covering 50+ architectures from 1979-2012. The multiplier system (1.7x-3.0x) incentivizes preservation of computing history while remaining economically fair through time decay.
Key Achievements:
- 50+ vintage CPU architectures cataloged
- Accurate detection patterns for each
- Historically justified multipliers
- Integration path with existing modern detection
- Anti-spoofing recommendations
Next Steps:
- Integrate
cpu_vintage_architectures.pyinto miner client - Add server-side validation
- Test with real vintage hardware (if available)
- Deploy to production after verification