Public and individual sin offerings are categorized as kodshei kodashim. Public offerings include the goat offerings on Rosh Chodesh and the holidays. They are slaughtered and blood is accepted in the North of the Azara. The blood is sprinkled on the top of the altar. The kohen goes onto the sovev, a ledge of the altar, one cubit wide and five cubits off the ground that extends across the length of the altar. From there, he walks around the altar, placing the blood, using his finger, at the top of the altar near the horns. The remainder of the blood is then spilled at the base of the altar,
and the meat can be prepared in all manners, and is eaten by male kohanim for that day and night, until midnight.
Rabbi Elazar b'Rabbi Shimon holds that the blood was placed on the horns, while Rebbi holds that the blood just needs to be placed above the red line at the mid-height of the altar (chut hasikra). Within Rebbi's opinion, there is a debate between Rabbi Yochanan and Rabbi Elazar whether it needs to be placed on the edge of the corner or can it be up to a cubit away from the corner. Even though a braita clearly states "the edge of the corner," it is possible that is only ideally, but a cubit away would be sufficient as well.
Rabbi Elazar b'Rabbi Shimon agrees with Rebbi regarding the blood of a bird burnt offering, which can be done anywhere above the red line, but distinguishes between that and the sin offering of an animal as the Torah specified kranot, horns.
The Gemara brings a source for Rebbi's opinion from Yechezkel 43:15 and a source for the red line from Shmot 27:5.
There is a debate regarding the placement of the remainder of the blood on the base of the altar – some say both were on the Western part of the base, some say both were on the Southern part and some say the inner ones were poured on the Western part, while the outer ones were placed on the Southern part. What is the basis for the different opinions?
The burnt offering is slaughtered in the North and blood is collected in the North. The blood is placed on two corners, but covers all four sides. Rav and Shmuel, based on a tannaitic debate, disagree about whether the kohen throws the blood twice in each corner to get on both sides or in one throw reaching both sides.
The blood was placed only from two corners, as one of the corners does not have a yesod, base, underneath and the blood of the burnt offering needs to be placed on the altar where there is a base underneath, as derived from verses earlier in the Gemara. Why was there no base on the East and South sides? Since that area was specifically part of Yehuda's territory, and the rest of the altar was in Binyamin's territory, they did not extend the base there, as Binyamin was promised that the altar would be in his territory.