Contradiction with Proverbs 15:3
While Psalms 87:6 suggests a specific act of recording, Proverbs 15:3 speaks of God's omnipresence and observation, not explicitly mentioning any act of recording.
Proverbs 15:3: The eyes of the LORD [are] in every place, beholding the evil and the good.
Contradiction with Jeremiah 31:34
Psalms 87:6 implies a record of peoples; Jeremiah 31:34 suggests God will remember sins no more, potentially conflicting with the idea of documented accounts.
Jeremiah 31:34: And they shall teach no more every man his neighbour, and every man his brother, saying, Know the LORD: for they shall all know me, from the least of them unto the greatest of them, saith the LORD: for I will forgive their iniquity, and I will remember their sin no more.
Contradiction with Isaiah 43:25
Psalms 87:6 speaks of a record being made; Isaiah 43:25 states God will not remember sins, which may contradict a notion of divine record-keeping.
Isaiah 43:25: I, [even] I, [am] he that blotteth out thy transgressions for mine own sake, and will not remember thy sins.
Contradiction with Revelation 20:12
While Psalms 87:6 discusses a register, Revelation 20:12 introduces books for judgment, suggesting a broader and possibly differing type of record.
Revelation 20:12: And I saw the dead, small and great, stand before God; and the books were opened: and another book was opened, which is [the book] of life: and the dead were judged out of those things which were written in the books, according to their works.