DNA movable type storage system and method

A method for DNA movable type storage mainly comprising:

• (1) constructing a physical movable type library of payloads and a physical movable type library of indexes based on DNA movable type codebook,
• wherein the physical movable type library of payloads consists of a variety of DNA oligonucleotides, each corresponding to a DNA payload movable type element and stored separately,
• wherein the physical movable type library of indexes consists of a variety of DNA oligonucleotides, each corresponding to a DNA index movable type element and stored separately,
• wherein each of the DNA oligonucleotides comprises two linkers,
• (2) dividing the binary data of the target storage file into a plurality of data units,
• for each data unit, based on the DNA movable type codebook, transcoding the data unit into a DNA payload movable type element and assigning at least one corresponding DNA index movable type element based on the DNA movable type encoding principle from DNA movable type codebook, and mapping each the DNA payload movable type element and DNA index movable type element to its corresponding DNA oligonucleotide from the two abovementioned libraries based on DNA movable type encoding principle from DNA movable type codebook,
• wherein, a DNA payload movable type element and at least one corresponding DNA index movable type element, linked together via the linkers, collectively define a DNA movable type unit;
• wherein the linkers are configured to realize the linking and assembling of the DNA payload movable type element and the DNA index movable type element into a DNA movable type unit;
• wherein, each the DNA movable type unit comprises, in a physical form, one DNA payload movable type sequence, a plurality of DNA index movable type sequences, and a plurality of linker sequences;
• wherein, the DNA movable type unit comprises in a linked form:
• a first DNA index movable type sequence, a first linker sequence, a DNA payload movable type sequence, a second linker, and a second index movable type sequence;
• wherein the first and second linkers are different and the first and second index movable type sequences are different,
• (3) linking, via the linkers, the DNA oligonucleotides corresponding to the DNA payload movable type elements with the DNA oligonucleotides corresponding to the DNA index movable type elements mapped in step (2), to generate physical DNA movable type units, and then combining all generated DNA movable type units to form a DNA data storage library, which covers all data information of the target file, and
• (4) sequencing all oligonucleotides in the storage library generated in step (3), and decoding the sequencing results into the binary data of the target storage file based on DNA movable type decoding principle from DNA movable type codebook.