Chainpoint

This is gem for request to Chainpoint. For Chainpoint, look at Chainpoint Node HTTP API.

Installation

Add this line to your application's Gemfile:

gem 'chainpoint'

And then execute:

$ bundle

Or install it yourself as:

$ gem install chainpoint

Usage

Create Instance

require 'checkpoint'
c = Checkpoint.new

Submit Hash

# hash is SHA250
# hash = '2fbe59be2be10a4fdeca9c6d3e9f56fc56fb3ee9a8ef2e9be37fced60c264681'
c.submit(hash)

Response

{
  "meta"=>{
    "submitted_at"=>"2018-07-24T13:04:35Z",
    "processing_hints"=>{
      "cal"=>"2018-07-24T13:04:50Z",
      "btc"=>"2018-07-24T14:05:35Z"
    }
  },
  "hashes"=>[
    {
      "hash_id_node"=>"1d1aa8a0-8f42-11e8-967f-01a68adfc010",
      "hash"=>"2fbe59be2be10a4fdeca9c6d3e9f56fc56fb3ee9a8ef2e9be37fced60c264681"
    }
  ]
}

Or, use submit_data:

c.submit_data("text")

Get Proof

Pass hash_id_node value, which is shown after calling submit.

c.get_proof(hash_id_node)

Response

[
  {
    "hash_id_node"=>"a50eb4d0-8f20-11e8-8da8-0133565a0e60",
    "proof"=>"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",
    "anchors_complete"=>["cal"]
  }
]

Verify

Pass proof value which is shown on calling get_proof.

c.verify('eJyNVMGOHDUQ5SP4BI7MTpXLLtt9Wolf4JTLyC6XmZaWmdF0JyHHhAtH9hMgizYgLkgoR/5jJD6G6tlN0O6ClEN3q22/V69cr+qHd5ey38363fzXdp4P07Bev6SxXeyP36xlW8bdYT/u5vULuplfHfS3rz4u3WzLtD1dul415KquKkLxvamULNxIcw/cxZ5Kqrkk7U7tIMUu2hjEseeEvy80m7Ftdvumpy9KAK2+wSp1BytETavUSloBEgUOBZTh/RkyPa/fjvOsd8hNmf90gHYwrpz/GvIAYQB49pFe9seFPoEXCg/oMxSjl9icBldLeEy/IP+bPjx7V49lJ1udrt/8clWqXv0h5WqzLO2Pm7u9t/vD9Pdnn7/+6er05Vnp2IZPyfL1z/vD7bQtKxf4DD7rWMCfkMNj8I+7cZoHDOS8I/AwtBijbx08Bo1aNUPKDTxV7uQoOQ6JtFLqQcEqlynVXtmD1wa5umhlpViJXER2JTTA0JisotC8OKeVMVgmkaVnAUQObCCreQJK9nos8NJ7xS4ZmIu65ok8lALdfNMFU0mYkodmvkKq3jF5VukSu0fhQFEeEh5Pl4196GjZmi89InaS1LnZr7rQagWDmRhkAo5UpMZumwAVs4+a6hPCnDGbex1LK8Bm94TYcs/dW7ZCuWVEqAGc3S9HbdW4oPvlE13P/ISwphyyL+yT3Wlk5hwqhhTsvq0zavApaFMO6HO09J1a7fpC3RGaRH1CyLFbGTwZh6+lcGzeBIWUk5fMORfruu5IQgZXoZnPzNN9KfkSMj5xTbYUncvxg3GsjAMOH8aEXPw7H5ZxMZj1h3vEWY5YEPOzqki3wKU5cz0hSEiNkwjXDsRm/CKliSegiFhRTf9isPJAzu1dU03X358H0VsL9ut9n43t9j7szfPjOF2fLv5P4tpQumvluL4HrJde/wcFK5lW')

Response

[
  {
    "proof_index"=>0,
    "hash"=>"2fbe59be2be10a4fdeca9c6d3e9f56fc56fb3ee9a8ef2e9be37fced60c264681",
    "hash_id_node"=>"a50eb4d0-8f20-11e8-8da8-0133565a0e60",
    "hash_submitted_node_at"=>"2018-07-24T09:05:00Z",
    "hash_id_core"=>"a804c350-8f20-11e8-890a-01c7d2e52ba5",
    "hash_submitted_core_at"=>"2018-07-24T09:05:05Z",
    "anchors"=>[
      {
        "branch"=>"cal_anchor_branch",
        "type"=>"cal",
        "valid"=>true
      }
    ],
    "status"=>"verified"
  }
]

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub chainpoint.