CID (Content IDentifier)
What is CID ?
CID is a format for referencing content in distributed information systems, like IPFS. It leverages content addressing, cryptographic hashing, and self-describing formats.
It is the core identifier used by IPFS and IPLD.
CID is a self-describing content-addressed identifier.
It uses cryptographic hashes to achieve content addressing.
It uses several multiformats to achieve flexible self-description, namely multihash for hashes, multicodec for data content types, and multibase to encode the CID itself into strings.
Sample Usage
>>> from cid import make_cid
>>> make_cid('QmaozNR7DZHQK1ZcU9p7QdrshMvXqWK6gpu5rmrkPdT3L4')
CIDv0(version=0, codec=dag-pb, multihash=b"\x12 \xb9M'\xb9\x93M>\x08\xa5.R\xd7\xda}\xab\xfa\xc4\x84..")
>>> cid = make_cid('QmaozNR7DZHQK1ZcU9p7QdrshMvXqWK6gpu5rmrkPdT3L4')
>>> print(cid.version, cid.codec, cid.multihash)
>>> print(cid.encode())
QmaozNR7DZHQK1ZcU9p7QdrshMvXqWK6gpu5rmrkPdT3L4
>>> str(cid)
'QmaozNR7DZHQK1ZcU9p7QdrshMvXqWK6gpu5rmrkPdT3L4'Installation
Stable release
To install CID, run this command in your terminal:
$ pip install py-cidThis is the preferred method to install CID, as it will always install the most recent stable release.
If you don’t have pip installed, this Python installation guide can guide you through the process.
From sources
The sources for CID can be downloaded from the Github repo.
You can either clone the public repository:
$ git clone git://github.com/ipld/py-cidOr download the tarball:
$ curl -OL https://github.com/ipld/py-cid/tarball/masterOnce you have a copy of the source, you can install it with:
$ python setup.py installOther info
Free software: MIT license
Documentation: https://py-cid.readthedocs.io.
Python versions: 3.5, 3.6
History
0.4.1 (2022-09-08, forked master)
made the package deployable increased version number and blackified the files
0.4.0 (forked master)
remove crazy version range limits for dependencies which cause major headaches for downstream projects with multiple confluent indirect dependencies on this library
0.2.1 (2018-10-20)
Fix edge cases with multibase and multihash decoding
Added hypothesis tests while verifying CIDs
0.1.5 (2018-10-12)
Handle the case where an incorrect base58 encoded value is provided to make_cid
0.1.0 (2017-09-05)
First release on PyPI.
1 maintainer
Metadata
1 maintainer
Release files for planetmint-py-cid 0.4.2
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | Provenance | |
|---|---|---|---|---|
| planetmint-py-cid-0.4.2.tar.gz | 19.6 kB | Without provenance | Details |
Release files / planetmint-py-cid-0.4.2.tar.gz
| Download URL | planetmint-py-cid-0.4.2.tar.gz |
|---|---|
| Size | 19.6 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
336f5eb738a9f4830147a0ca4f24692f245c639118d534ccb8dd71855c434a0b
|
|
BLAKE2b-256 checksum How to use checksums |
4b3ee59244c4642dcde68be887da8e47b10a6bc22b6f6d9a95435a4e2552b4d9
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
No |
| Uploaded via |
twine/4.0.1 CPython/3.9.13
|
Security for planetmint-py-cid 0.4.2
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
No provenance found
None of the files in this release were uploaded with provenance metadata.
A note on package security
PyPI is a repository for distributing packages, not a service for auditing them. While third-party security researchers and our staff do their best to detect and remove malicious packages, PyPI cannot guarantee the quality, security or suitability of any given package.
To learn more about protecting yourself from malicious actors, visit our package security documentation.
