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Add codecs for archive formats #405

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4 changes: 4 additions & 0 deletions README.md
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Expand Up @@ -62,6 +62,10 @@ Each multicodec entry in the table.csv has a "tag" column that helps categorize

* **serialization**: Similar to "ipld" but does not materialize links. For example, JSON and CBOR have the "serialization" tag, while DAG-JSON and DAG-CBOR have the "ipld" tag because they handle links.

* **archive**: Archive formats that package one or more files and metadata, such as TAR and ZIP.

* **compression**: Compressed byte-stream or file formats, such as GZIP, DEFLATE, Zstandard, bzip2, and XZ.

* **varsig**: Signature formats as described in [varsig](https://github.com/ChainAgnostic/varsig). Varsig is a multiformat for describing signatures over IPLD data and raw bytes in a way that preserves information about the payload and canonicalization information.

* **namespace**: Namespace identifiers for various protocols and systems.
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8 changes: 8 additions & 0 deletions table.csv
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Expand Up @@ -141,6 +141,14 @@ swhid-1-snp, ipld, 0x01f0, draft, Soft
json, ipld, 0x0200, permanent, JSON (UTF-8-encoded)
messagepack, serialization, 0x0201, draft, MessagePack
car, serialization, 0x0202, draft, Content Addressable aRchive (CAR)
tar, archive, 0x0203, draft, Tape Archive format
zip, archive, 0x0204, draft, ZIP archive format
gzip, compression, 0x0205, draft, GZIP file format (RFC 1952)
zlib, compression, 0x0206, draft, ZLIB compressed data format (RFC 1950)
deflate, compression, 0x0207, draft, DEFLATE compressed data format (RFC 1951)
zstd, compression, 0x0208, draft, Zstandard compressed data format (RFC 8878)
bzip2, compression, 0x0209, draft, bzip2 compressed data format
xz, compression, 0x020a, draft, XZ compressed data format
x509-certificate, serialization, 0x0210, draft, DER-encoded X.509 (PKIX) certificate per RFC 5280; single certificate only (no chain); raw DER bytes (not PEM)
ipns-record, serialization, 0x0300, permanent, Signed IPNS Record
libp2p-peer-record, libp2p, 0x0301, permanent, libp2p peer record type
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