Schematic Diagram of SCP-4096
Item #: SCP-4096
Object Class: Safe
Special Containment Procedures: SCP-4096 is stored in a 15x15x10 sealed transparent container. The atmosphere of the chamber is composed of 99.999% Argon gas and kept at a pressure of no less than 20 PSI at all times. A 12-pin header protrudes from the side of the container for interfacing SCP-4096 with its monitoring and control hardware. All data outputted by SCP-4096 is automatically filtered and uploaded to the foundation’s on-site servers for archival purposes.
Description: SCP-4096 is a ring oscillator-based hardware random number generator constructed out of various Texas Instruments 7400-series TTL integrated circuits. Its components include: 4x 74LS04N hex inverters, 1x 74LS374N D-Type 8-bit register, 2x 10 kilo-ohm 1/4W 5% resistors, 1x 12-pin header, 1x through-hole electronic prototyping board, and various wires and solder. It is believed to have been created in 1994 by a man named ████ █████ residing in Baulkham Hills, Australia. After discovering its strange properties, █████ documented the device’s anomalous behavior on the sci.electronics.design Usenet newsgroup, where the foundation was made aware of its existence.
While the hardware of SCP-4096 should generate truly random integers based on its design, the numbers that SCP-4096 generates are not believed to be random. When properly powered and supplied a clock pulse, SCP-4096 will generate a sequence of bytes in big-endian byte order that form a larger integer when combined. Upon reaching the last byte of a given sequence, the sequence will repeat without deviation for a duration of exactly 4,294,967,295 clock cycles (henceforth referred to as a “generation cycle”) regardless of frequency. After 4,294,967,295 clock cycles, SCP-4096 will start a new cycle, outputting an entirely new integer. It is unknown how SCP-4096 accomplishes this level of precision as there are no electronic counters or timers onboard. Hardware reproductions of SCP-4096 using identical components do not display any signs of anomalous behavior and generate the expected truly random data without order.
While the numbers generated by SCP-4096 were initially thought to be meaningless, it is now evidenced that each generated integer will, without fail, become politically, socially, scientifically, or economically significant sometime within its generation cycle (See Addendum 4096-A). The level of significance of the number generated by SCP-4096 seems to scale with the frequency that the device operates at. Higher frequencies, which result in shorter generation cycles, will yield numbers of less general importance (ex: basketball game scores, winning racehorses), while lower frequencies, resulting in longer generation cycles, will yield numbers of greater general importance (ex: closing stock market values, electoral votes held by the winner of a presidential election). SCP-4096 seems to have no concept of any form of digital text encoding or floating point arithmetic, as every output at the time of this writing has been in unencoded binary form. Due to the purely numerical nature of SCP-4096's outputs, it is nearly impossible to predict what a generated number will represent until after its referenced event occurs in real time.
Addendum 4096-A:
Significant Results of Various SCP-4096 outputs:
Cycle Start: 1996-11-5 15:27:34 GMT
Frequency: 70.1792042 KHz
Cycle Duration: 17 Hours
Hex Output: 01 7B
Dec: 379
Significance: Within this cycle, Bill Clinton won the 1996 US presidential Election with 379 electoral votes.
Cycle Start: 1999-7-13 10:15:23 GMT
Frequency: 14.31655765 MHz
Cycle Duration: 5 Minutes
Hex Output: ██ ██ ██ ██
Dec: █████████
Significance: Output was the Social Security number of Dr.██████, a senior faculty administrator who died of cardiac arrest 3 minutes into the cycle.
Cycle Start: 2004-4-7 10:42:09 GMT
Frequency: 170.435210119 KHz
Cycle Duration: 7 hours
Hex Output: 0F FD CF
Dec: 1048015
Significance: The Dow Jones Industrial average closed at 10480.15 on 2004-4-7. Note the lack of a decimal point.






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