Item #: SCP-956
Object Class: Safe/Euclid
Special Containment Procedures: SCP-956 is to be contained in a 10 meter by 10 meter room with a 2.5 meter ceiling height. Walls are to be made of 124 MPa or higher strength concrete and shall be at least 25 cm thick. Fiberglass-boron carbide composite reinforcing dowels with bronze sheathes at the floor and ceiling bar splices shall be placed at a spacing of no greater than 10 cm. The door frame is to be made of a titanium-iridium alloy. Electronic hardware, including surveillance equipment shall use iridium-osmium cases with gold wiring in combination with optical relays. Any optical glass shall contain high levels of graphite and graphene in the outer sheathing.
Feeding shall occur every four hours via the placement of at least 120 grams of mildly corroded metal within the containment area. Small denomination United States coinage from after 1982 that has been bathed in a salt water solution serves this purpose very well.
Access to SCP-956's containment area is permitted for all staff with a security clearance of Level 1 or higher. Access is contingent on submitting a request for research approved by a senior staff member. The waiting area outside SCP-956 will contain a metal detector and a submillimeter wave scanner. Metallic items not composed of noble metals should not be brought into the containment area. Individuals should not reside within SCP-956's containment area for longer than 90 minutes due to the side effects of exposure to SCP-956 noted in Document 956c.
Description: SCP-956 at appears to be a painting of a bull, specifically of the Bestuzhev breed. It is composed of a photoelectric membrane and a swarm of conductive nano-particles. These particles act to provide a quantum effect where entropy is effectively controlled in order to facilitate feeding.
Feeding proceeds by causing all nearby reductive or oxidative reactions to proceed in a way that is both thermodynamically spontaneous and favorable to providing a constant stream of electrons for SCP-956 to process. The exact method does not violate current thermodynamic theory, but does have implications in regards to the Pauli exclusion principle. Feeding typically presents as rapid corrosion of nearby material. SCP-956 typically feeds upon the materials most easily corroded in its containment area, but when stressed, will cause damage to typically difficult to corrode material.
SCP-956 is mobile, but will try to remain obscured behind any metal taken into its containment area. SCP-956 exhibits behaviors consistent with an animal of its type that has suffered long term abuse (Document 956b). SCP-956 will respond to aggressive behavior taken against it with lethal force. Damage to SCP-956 will repair over time, dependent on how much material is excised and how much feed it is provided with.
Document 956a (Initial Recovery): The first indications of SCP-956 existence was an incident in Salavat, Russia in January 198█. A mass poisoning by photochemical smog at a petrochemical refinery was reported by Soviet officials. In actuality, the individuals had died of oxygen toxicity syndrome after working through the night to repair a leaking tetrachloroethylene holding tank. In 1991, as part of Operation Steppe Buzzard1, the cover-up was discovered. Continuous monitoring of the site, abandoned since 199█, led to the discovery of SCP-956. Dr. ██████'s method of recovery was implemented.
Document 956b (Change in Status): After its initial recovery, SCP-956 was given an interim designation of BZZ-956. For a period of █ years, SCP-956 was held within Operation Steppe Buzzard's main facility Site ██WP. Its initial containment was within an iridium-titanium box. Due to an improper feeding regiment, SCP-956 became aggressive in its feeding habits. Approaching within 10 meters would cause the immediate onset of a hyperoxic seizure. Increasingly aggressive behavior lead to the transfer of SCP-956 into a 3 mm gap between a set of 2 meter by 2 meter iridium-osmium plates. It has been determined that this containment increased SCP-956's energy needs ████%. Due to the increasing measures needed to keep SCP-956 contained, [DATA REDACTED].
Document 956c (Medical Effects): Exposure to SCP-956 will initially produce effects in human blood similar to methemoglobinemia. After approximately five minutes, these symptoms will reverse. At this point, prolonged exposure to SCP-956 will slowly produce symptoms similar to blood doping. After a duration dependent on individual biochemistry, symptoms of oxygen toxicity occur.
Document 956d (Rescinded Termination Plan): SCP-956 was due to be terminated in October 199█. Changes in policies at Site ██WP led to the this order being rescinded.
Document 956e (Long-Term Biological Effects): On ██-██-2009, a site-wide lock-down occurred at 02:12 after a containment breach by SCP-███. Damage to Site ██ resulted in D-532µ becoming entrapped within the containment area for SCP-956. Results typical of exposure to SCP-956 occurred, evidenced by D-532µ expiring from oxygen toxicity. After a period of ██ hours, SCP-956 was found in a moribund state, displaying considerable peeling and cracking along its surface from fire damage. Initial attempts to recover D-532µ met with considerable difficulty due to SCP-956 aggressively feeding from all substances in the area in an attempt to affect self-repair. Eventually [DATA REDACTED] was employed, allowing for retrieval of D-532µ. D-532µ was noted to have exhibited extreme decomposition, with significant corrosion of skeletal calcium, flooding of body cavities with a calcium-potassium slurry, and complete depolymerization of all muscular myoglobin.