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Item #: SCP-1256

Object Class: Safe

Special Containment Procedures:

To ensure the adequate prevention of environmental damage to the notoriously sensitive SCP-1256, it is to be kept within its original container – a sealed, 6x25cm glass bottle filled with sterile water. Water is to be changed in case of any activity or perturbance involving the SCP. Appropriate NFPA 704 labels and warning signs indicating the toxic nature of SCP-1256 are to be kept visible on the surface of the bottle.

The SCP and its container must be kept at all times in a 10x10x30 foam-lined shock absorbent container under a high-performance safety lock and video surveillance. Keys to access the container must be guarded under strict security protocols. No additional biological hazard, radioactivity or toxicity safety measures are required when SCP-1256 is inactive. When active within computer systems, it is recommended that it be kept under surveillance of guards.


SCP-1256, recovered in a military intervention against a smuggling ring in ██████ led by ███ Captain ██████ and of unknown origin is a homogeneous, smooth disk of 54.101mm of diameter and a thickness of 274.8 micrometers similar to the “wafers” used in the semiconductor industry. According to spectrographic analysis the disk is made of 99.9999% pure n-type monocrystalline silicon with traces of boron (10B), antimony (123Sb), lanthanum (138La) as well as an unknown element that has shown properties consistent with the third group of the periodic table.

Fifty-four (54) microchip-like interlinked constructs have been etched on one of its sides, via 32nm processes, out of copper, chrome, gold, silicon nitrate, phosphor-silicate glass, silicon carbide, silicon dioxide and ███████████████-███, all but the latter being materials associated with conventional microchip manufacture.

It is believed the assembly has at least nine billion transistors (9.912.000.000 from more recent observations). 2048 input ports are present at the edge of the disk that can connect the circuit die with computers.

Of particular note is the presence of complex polypeptides somewhere inside the extremely intrincate structure of SCP-1256 as well as a proteic envelope wrapped in several portions of its SOD substrate. Such substances are only observed in biological systems.

Full mapping of SCP-1256 using transmission electron microscopy (TEM) are withhold as of now.

The chip has been observed to grant computers the ability to equate NP problems (problems easily checked but almost impossibly solved by computers) with P problems (problems easily solved by computers), effectively giving the computer it is connected to the ability to solve all problems and prove or disprove all theorems in a span of only some seconds of computing.

One of the effects of P being equaled to NP appears to be that SCP-1256 grant the computer it is attached to a form of sentience. While interfacing with SCP-1256, IBM Blue Gene/L, █████, IBM RoadRunner, NUDT Tianhe-A1, the Fujitsu K-Computer, the Department of Defense’s ██████████ as well as the SCP Foundation’s own system have all successfully passed the Turing Test (see Test Logs).

Behavior of computers that operate with SCP-1256 appears to be unpredictable, with similar systems acting in different manners. After incidents with several systems (See file 991-N regarding the collapse of the Don-2N network) it has been concluded that SCP-1256’s use should be limited as much as possible.

Addendum: Turing Test Logs

Note: Following the catastrophic failure with the sentiency test of CP-PACS and after hints that RIKEN was developing similar behavior, it has been concluded that further installings of SCP-1255 are too risky and unpredictable due to the behavior displayed by the affected systems. As of █/█/██, no further tests have been carried out, and it is recommended SCP-1255 does not become active again until studies can develop an efficient security system to limit its influence.

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