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The detached object Sedna is likely at the inner edge of the Oort cloud, moreprecisely the inner Oort cloud (IOC). Until recently it was the sole member ofthis population. The recent discovery of the detached object 2012 VP113 hasconfirmed that there should be more objects in this region. Three additionalIOC candidates with orbits much closer to Neptune have been proposed in thepast decade since Sedna's discovery: 2000 CR105, 2004 VN112 and 2010 GB174.Sedna and 2012 VP113 have perhelia near 80 AU and semi-major axes over 250 AU.The latter three have perihelia between 44 AU and 50 AU and semi-major axesbetween 200 AU and 400 AU. Here we determine whether the latter three objectsbelong to the IOC or are from the Kuiper Belt's Extended Scattered Disc (ESD)using numerical simulations. We assume that the IOC was formed when the Sun wasin its birth cluster. We analyse the evolution of the IOC and the ScatteredDisc (SD) during an episode of late giant planet migration. We examine theimpact of giant planet migration in the context of four and five planets. Wereport that the detached objects 2004 VN112 and 2010 GB174 are likely membersof the IOC that were placed there while the Sun was in its birth cluster orduring an episode of Solar migration in the Galaxy. The origin of 2000 CR105 isambiguous but it is likely it belongs to the ESD. Based on our simulations wefind that the maximum perihelion distance of SD objects is 41 AU when thesemi-major axis is higher than 250 AU. Objects closer in are subject to meanmotion resonances with Neptune that may raise their perihelia. The five planetmodel yields the same outcome. We impose a conservative limit and state thatall objects with perihelion distance q>45 AU and semi-major axis a>250 AUbelong to the inner Oort cloud.

Reassessing the formation of the Inner Oort cloud in an embedded star cluster II: Probing the inner edge