{
  "_id": "6ad098c1cf31981cbb6ef91d",
  "Package": "contentid",
  "Version": "0.0.19",
  "Title": "An Interface for Content-Based Identifiers",
  "Description": "An interface for creating, registering, and resolving\ncontent-based identifiers for data management. Content-based\nidentifiers rely on the 'cryptographic' hashes to refer to the\nfiles they identify, thus, anyone possessing the file can\ncompute the identifier using a well-known standard algorithm,\nsuch as 'SHA256'.  By registering a URL at which the content is\naccessible to a public archive (such as Hash Archive) or\ndepositing data in a scientific repository such 'Zenodo',\n'DataONE' or 'SoftwareHeritage', the content identifier can\nserve many functions typically associated with A Digital Object\nIdentifier ('DOI').  Unlike location-based identifiers like\n'DOIs', content-based identifiers permit the same content to be\nregistered in many locations.",
  "Authors@R": "c(\nperson(\"Carl\", \"Boettiger\", , \"cboettig@gmail.com\", c(\"aut\", \"cre\"),\ncomment = c(ORCID = \"0000-0002-1642-628X\")),\nperson(\"Jorrit\", \"Poelen\", role =\"aut\",\ncomment = c(ORCID=\"0000-0003-3138-4118\")),\nperson(given = \"NSF OAC 1839201\", role = \"fnd\",\ncomment = \"https://www.nsf.gov/awardsearch/showAward?AWD_ID=1839201\")\n)",
  "License": "MIT + file LICENSE",
  "Encoding": "UTF-8",
  "ByteCompile": "true",
  "Language": "en-US",
  "URL": "https://github.com/cboettig/contentid",
  "BugReports": "https://github.com/cboettig/contentid/issues",
  "RoxygenNote": "7.2.3",
  "Roxygen": "list(markdown = TRUE)",
  "VignetteBuilder": "knitr",
  "Config/pak/sysreqs": "cmake make libuv1-dev libssl-dev",
  "Repository": "https://cboettig.r-universe.dev",
  "Date/Publication": "2025-01-21 18:58:26 UTC",
  "RemoteUrl": "https://github.com/cboettig/contentid",
  "RemoteRef": "HEAD",
  "RemoteSha": "6a8811bf30c2e918a6854bc90523df1b39667d36",
  "NeedsCompilation": "no",
  "Packaged": {
    "Date": "2026-10-15 08:29:23 UTC",
    "User": "root"
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  "Author": "Carl Boettiger [aut, cre] (ORCID:\n<https://orcid.org/0000-0002-1642-628X>),\nJorrit Poelen [aut] (ORCID: <https://orcid.org/0000-0003-3138-4118>),\nNSF OAC 1839201 [fnd]\n(https://www.nsf.gov/awardsearch/showAward?AWD_ID=1839201)",
  "Maintainer": "Carl Boettiger <cboettig@gmail.com>",
  "_user": "cboettig",
  "_type": "src",
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  "_created": "2026-10-15T08:29:23.000Z",
  "_published": "2026-10-15T09:11:29.006Z",
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    "committer": "Carl Boettiger <cboettig@gmail.com>",
    "message": "zenodo namespaces hash algo now\n",
    "time": 1737485906
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    "email": "cboettig@gmail.com",
    "login": "cboettig",
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    "description": "",
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  "_selfowned": true,
  "_usedby": 1,
  "_updates": [],
  "_tags": [],
  "_stars": 46,
  "_contributors": [
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      "count": 360,
      "uuid": 222586
    },
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    "type": "user",
    "name": "Carl Boettiger",
    "followers": 1019
  },
  "_downloads": {
    "count": 1671,
    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/contentid"
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  "_devurl": "https://github.com/cboettig/contentid",
  "_searchresults": 141,
  "_rbuild": "4.6.1",
  "_assets": [
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    "extra/citation.html",
    "extra/citation.json",
    "extra/citation.txt",
    "extra/contentid.html",
    "extra/contents.json",
    "extra/manual.pdf",
    "extra/NEWS.html",
    "extra/NEWS.txt",
    "extra/readme.html",
    "extra/readme.md",
    "LICENSE"
  ],
  "_homeurl": "https://github.com/cboettig/contentid",
  "_realowner": "cboettig",
  "_cranurl": true,
  "_releases": [
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      "version": "0.0.4",
      "date": "2020-08-12"
    },
    {
      "version": "0.0.5",
      "date": "2020-08-27"
    },
    {
      "version": "0.0.6",
      "date": "2020-08-31"
    },
    {
      "version": "0.0.7",
      "date": "2020-09-08"
    },
    {
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      "date": "2020-09-25"
    },
    {
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      "date": "2021-01-15"
    },
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      "date": "2021-04-27"
    },
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      "version": "0.0.11",
      "date": "2021-08-03"
    },
    {
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      "date": "2021-08-08"
    },
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      "date": "2021-11-07"
    },
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      "date": "2021-11-29"
    },
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      "date": "2022-12-07"
    },
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      "date": "2023-04-21"
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      "date": "2023-10-23"
    },
    {
      "version": "0.0.19",
      "date": "2025-01-21"
    }
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  "_exports": [
    "content_dir",
    "content_id",
    "default_lmdb",
    "default_registries",
    "has_resource",
    "history_swh",
    "history_url",
    "pin",
    "purge_cache",
    "query",
    "register",
    "resolve",
    "retrieve",
    "retrieve_swh",
    "sources",
    "sources_swh",
    "store",
    "store_swh",
    "swh_ratelimit"
  ],
  "_help": [
    {
      "page": "content_dir",
      "title": "content store home directory",
      "topics": [
        "content_dir"
      ]
    },
    {
      "page": "content_id",
      "title": "Generate a content uri for a local file",
      "topics": [
        "content_id"
      ]
    },
    {
      "page": "default_lmdb",
      "title": "default location for LMDB registry",
      "topics": [
        "default_lmdb"
      ]
    },
    {
      "page": "default_registries",
      "title": "default registries",
      "topics": [
        "default_registries"
      ]
    },
    {
      "page": "has_resource",
      "title": "has_resource",
      "topics": [
        "has_resource"
      ]
    },
    {
      "page": "history_swh",
      "title": "return the history of archive events of a given software repository",
      "topics": [
        "history_swh"
      ]
    },
    {
      "page": "history_url",
      "title": "List all content identifiers that have been seen at a given URL",
      "topics": [
        "history_url",
        "history_url,",
        "query_history"
      ]
    },
    {
      "page": "pin",
      "title": "Access the latest content at a URL (DEPRECATED)",
      "topics": [
        "pin"
      ]
    },
    {
      "page": "purge_cache",
      "title": "Purge older files from the local cache.",
      "topics": [
        "purge_cache"
      ]
    },
    {
      "page": "query",
      "title": "query a Content URI or a URL with remote and/or local registries",
      "topics": [
        "query"
      ]
    },
    {
      "page": "register",
      "title": "register a URL with remote and/or local registries",
      "topics": [
        "register"
      ]
    },
    {
      "page": "resolve",
      "title": "Resolve content from a content identifier",
      "topics": [
        "resolve"
      ]
    },
    {
      "page": "retrieve",
      "title": "Retrieve files from the local cache",
      "topics": [
        "retrieve"
      ]
    },
    {
      "page": "retrieve_swh",
      "title": "retrieve content from Software Heritage given a content identifier",
      "topics": [
        "retrieve_swh"
      ]
    },
    {
      "page": "sources",
      "title": "List all known URL sources for a given Content URI",
      "topics": [
        "query_sources",
        "sources",
        "sources,"
      ]
    },
    {
      "page": "sources_swh",
      "title": "List software heritage sources for a content identifier",
      "topics": [
        "sources_swh"
      ]
    },
    {
      "page": "store",
      "title": "Store files in a local cache",
      "topics": [
        "store"
      ]
    },
    {
      "page": "store_swh",
      "title": "Add content to the Software Heritage Archival Store",
      "topics": [
        "store_swh"
      ]
    },
    {
      "page": "swh_ratelimit",
      "title": "software heritage rate limit",
      "topics": [
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      ]
    }
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    "httr",
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