Are negative beliefs conveyed by cordings, being a kind of negative energy of consciousness? Are they part of the energetic signature?

Both of these things are true and this is another brilliant analysis that will help greatly with understanding of the dynamics of how all of this fits together. If you think about this logically, to the extent people have trauma episodes, for example, as victims, and have emotional reactions highly negative and harmful as a consequence, any beliefs this instills as a consequence of what happened will, in fact, be simply another body of consciousness that becomes devoted to holding a lower vibration than desirable, just as the negative emotional energy experienced becomes a liability. It does not dissipate or disappear, it is encoded in the energetic signature of the akashic records directly. So when the energetic signature of a trauma episode, through the workings of karma, launches a cording to that individual in their current life, there may be a cording for the emotions and another cording for the negative self-limiting beliefs, or the two may be combined together and interlinked and, in a sense, the emotional negativity is an indication of intensity that charges the negative belief with extra energetic potential. This, as well, is logical if you think about the fact some beliefs are inherently more strongly held than others and will, in fact, invoke some feelings when pondered. So they are not just facts about what someone believes, they may well be perceived as imperatives because of the emotional strength underlying them, and that is simply a clue to the nature of beliefs themselves, that they are part of an energetic signature on some level, always, within the akashic records. But wherever present through cordings, and acted on locally by a living being, there will be a recognition of and a perception of their level of vibration, such that dark beliefs will come up during dark times, times of emotional stress, challenge, confrontation, and so on. Given this description, it is clear then that negative beliefs are a healing need in and of themselves, to fully take care of old karmic business, because they contribute to the negative energetic signatures of karmic events taking someone out of alignment and thus needing to be rebalanced.