Datasets to power the Market Depth chart.
Both bids and asks are lists of 2-item tuples: [price, volume]

Additionally there are aggregate values provided for both sides of the book
and both quote and base currencies (in that order) under the totals key:

totals = [
[amount of quote currency in bids, amount of base currency in bids],
[amount of quote currency in asks, amount of base currency in asks],
]

A nice article explaining how the Depth Chart works:
https://hackernoon.com/depth-chart-and-its-significance-in-trading-bdbfbbd23d33

GET /api/public/market/ogc-btc/depth/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Cache-Control: public, s-maxage=1
Content-Type: application/json
Vary: Accept

{
    "bids": [],
    "asks": [
        [
            "0.00626",
            "2.5993"
        ],
        [
            "0.00628",
            "4.5993"
        ],
        [
            "0.0063",
            "9.5993"
        ],
        [
            "0.00634",
            "14.5993"
        ],
        [
            "0.006369",
            "15.5993"
        ],
        [
            "0.006376",
            "16.5993"
        ],
        [
            "0.006377",
            "46.5993"
        ],
        [
            "0.006378",
            "56.5993"
        ],
        [
            "0.006379",
            "106.5593"
        ],
        [
            "0.0064",
            "139.5593"
        ],
        [
            "0.00747",
            "140.5593"
        ],
        [
            "0.007988",
            "141.5593"
        ],
        [
            "0.007989",
            "142.5593"
        ],
        [
            "0.00799",
            "147.5593"
        ],
        [
            "0.008",
            "148.5593"
        ],
        [
            "0.00819",
            "153.5593"
        ],
        [
            "0.0082",
            "161.1337"
        ],
        [
            "0.008299",
            "186.1337"
        ],
        [
            "0.00836",
            "186.3489"
        ],
        [
            "0.008365",
            "189.3489"
        ],
        [
            "0.00838",
            "194.3489"
        ],
        [
            "0.0086",
            "196.3489"
        ],
        [
            "0.0087",
            "201.3489"
        ],
        [
            "0.00875",
            "206.3489"
        ],
        [
            "0.008991",
            "207.5489"
        ],
        [
            "0.009",
            "208.5489"
        ],
        [
            "0.0096",
            "208.7489"
        ],
        [
            "0.00964",
            "209.7489"
        ],
        [
            "0.009999",
            "210.7489"
        ],
        [
            "0.0108",
            "211.7489"
        ],
        [
            "0.0109",
            "211.9489"
        ],
        [
            "0.011",
            "213.9489"
        ],
        [
            "0.012",
            "214.9489"
        ],
        [
            "0.012999",
            "215.9489"
        ],
        [
            "0.013",
            "216.9489"
        ],
        [
            "0.0131",
            "217.9489"
        ],
        [
            "0.0133",
            "218.9489"
        ],
        [
            "0.0135",
            "219.9489"
        ],
        [
            "0.015",
            "220.1489"
        ],
        [
            "0.016",
            "221.1489"
        ],
        [
            "0.01624",
            "223.621121"
        ],
        [
            "0.016264",
            "224.121121"
        ],
        [
            "0.016266",
            "224.621121"
        ],
        [
            "0.016268",
            "225.121121"
        ],
        [
            "0.016269",
            "226.121121"
        ],
        [
            "0.01627",
            "228.121121"
        ],
        [
            "0.017",
            "229.121121"
        ],
        [
            "0.017275",
            "234.121121"
        ],
        [
            "0.0175",
            "243.621121"
        ],
        [
            "0.018",
            "244.621121"
        ],
        [
            "0.019001",
            "245.621121"
        ],
        [
            "0.019978",
            "246.621121"
        ],
        [
            "0.019989",
            "247.621121"
        ],
        [
            "0.02",
            "273.221121"
        ],
        [
            "0.0225",
            "275.221121"
        ],
        [
            "0.024",
            "276.221121"
        ],
        [
            "0.024017",
            "277.221121"
        ],
        [
            "0.025",
            "278.221121"
        ],
        [
            "0.026",
            "283.221121"
        ],
        [
            "0.028",
            "289.158121"
        ],
        [
            "0.02857",
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        ],
        [
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        ],
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        ],
        [
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        ],
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        ],
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        ],
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            "0.033818",
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        ],
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        ],
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        ],
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        ],
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        ],
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        ],
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        ],
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        ],
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        ],
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        ],
        [
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        [
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        [
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        ],
        [
            "0.048",
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        [
            "0.049",
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        ],
        [
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        ],
        [
            "0.05",
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        ],
        [
            "0.054824",
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        ],
        [
            "0.055",
            "499.424658"
        ],
        [
            "0.059",
            "500.424658"
        ],
        [
            "0.06",
            "524.776963"
        ],
        [
            "0.0629",
            "524.846963"
        ],
        [
            "0.0666",
            "685.846963"
        ],
        [
            "0.07",
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        ],
        [
            "0.08",
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        ],
        [
            "0.095",
            "718.846963"
        ],
        [
            "0.098",
            "719.846963"
        ],
        [
            "0.1",
            "730.812963"
        ],
        [
            "0.12",
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        ],
        [
            "0.1598",
            "741.812963"
        ],
        [
            "0.5",
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        ],
        [
            "1",
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        ],
        [
            "9.688",
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        ],
        [
            "10",
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        ],
        [
            "55",
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        ]
    ],
    "totals": [
        [
            0,
            0
        ],
        [
            "105.42223382",
            "746.812963"
        ]
    ]
}