DDEALDigital Evidence Assertion Laboratory
Universal Data Catalog

Evidence begins with a declared data contract.

DEAL separates what a dataset means from who currently provides it. Providers can change. The semantic contract, raw evidence, adapter version and historical dataset versions remain auditable.

49 public datasets7 adapter typesv0.1.44
Data universe

Catalog first. Source second.

Every version binds a catalog contract to exact source bytes, an adapter implementation and a canonical normalized artifact.

bitcoinmarket_microstructure

Bitcoin BTC/USD Order Book Snapshots

Venue-scoped BTC/USD visible order-book snapshots with exact price and quantity strings.

TemporalbitemporalVersions488Unitmixed
CATALOG MANIFEST0fba10bb154907fac670b486aaf6…
Inspect dataset →
bitcoinmarket_microstructure

Bitcoin BTC/USD Recent Trade Samples

Venue-scoped public recent-trade samples with exact price/quantity and explicit provider side semantics.

TemporalbitemporalVersions486Unitmixed
CATALOG MANIFESTa89c3c42b602700bc9ad087f9eff…
Inspect dataset →
bitcointimeseries

Bitcoin · 24h spot volume

Aggregate or venue-scoped spot trading volume over 24 hours.

TemporalbitemporalVersions0UnitUSD
CATALOG MANIFESTa22532140452304dee670a9a87ee…
Inspect dataset →
bitcointimeseries

Bitcoin · 25Δ skew

Twenty-five-delta options skew under the bound tenor methodology.

TemporalbitemporalVersions0Unit%
CATALOG MANIFEST2e139a437a03fe7718b1b4f01ce9…
Inspect dataset →
bitcointimeseries

Bitcoin · Ask depth ±1%

Ask-side order-book depth within one percent of reference price.

TemporalbitemporalVersions0UnitUSD
CATALOG MANIFEST1eaad83b5c4dec60c43aa6921bd1…
Inspect dataset →
bitcointimeseries

Bitcoin · Bid depth ±1%

Bid-side order-book depth within one percent of reference price.

TemporalbitemporalVersions0UnitUSD
CATALOG MANIFESTe204435e36f7dbe75cf937ec6d20…
Inspect dataset →
bitcointimeseries

Bitcoin · Blockspace utilization

Blockspace utilization under the bound interval methodology.

TemporalbitemporalVersions0Unit%
CATALOG MANIFESTf92fc742a17e1877859af4aadb33…
Inspect dataset →
bitcointimeseries

Bitcoin · Cumulative volume delta

Buy-initiated minus sell-initiated spot volume under the bound source methodology.

TemporalbitemporalVersions0UnitUSD
CATALOG MANIFESTbef4833ec62d26caa084ca781c38…
Inspect dataset →
bitcointimeseries

Bitcoin · Difficulty

Bitcoin mining difficulty.

TemporalbitemporalVersions0Unitdifficulty
CATALOG MANIFESTea69e2423e02c0a5d2668c10c591…
Inspect dataset →
bitcointimeseries

Bitcoin · ETF estimated cost basis

Estimated ETF break-even or cost-basis level under the source methodology.

TemporalbitemporalVersions0UnitUSD
CATALOG MANIFEST7b61a7bcf681fd08ade14c1b69de…
Inspect dataset →
bitcointimeseries

Bitcoin · ETF holdings

Bitcoin held by tracked spot-Bitcoin ETFs.

TemporalbitemporalVersions0UnitBTC
CATALOG MANIFEST00205660569dc1d57a479c1c9ea7…
Inspect dataset →
bitcointimeseries

Bitcoin · ETF net flow

Net spot-Bitcoin ETF creation/redemption flow for the observation interval.

TemporalbitemporalVersions0UnitUSD
CATALOG MANIFEST12c59ee5409c76d287aaa2486239…
Inspect dataset →
bitcointimeseries

Bitcoin · Exchange balance

BTC attributed to tracked exchange entities.

TemporalbitemporalVersions0UnitBTC
CATALOG MANIFESTa68b12f0ebefbe2256b6a6297590…
Inspect dataset →
bitcointimeseries

Bitcoin · Exchange netflow

Net BTC flow into identified exchange entities under the bound source methodology.

TemporalbitemporalVersions0UnitBTC
CATALOG MANIFESTe3b1e46d5f9883821c6067b16fdb…
Inspect dataset →
bitcointimeseries

Bitcoin · Fed funds rate

Effective or target federal funds rate under the bound source methodology.

TemporalbitemporalVersions0Unit%
CATALOG MANIFESTa3010e0cb975f4dfe5afdd77a4af…
Inspect dataset →
bitcointimeseries

Bitcoin · Fees paid

Bitcoin transaction fees over the source interval.

TemporalbitemporalVersions0UnitBTC
CATALOG MANIFEST4e5e0cbe05197c65fa784338096f…
Inspect dataset →
bitcointimeseries

Bitcoin · Fees paid

Bitcoin transaction fees in U.S. dollars over the source interval.

TemporalbitemporalVersions0UnitUSD
CATALOG MANIFEST8c918a5fdfe9049c9394f2239cf1…
Inspect dataset →
bitcointimeseries

Bitcoin · Futures basis

Futures basis relative to spot under the bound maturity methodology.

TemporalbitemporalVersions0Unit%
CATALOG MANIFEST570a7734054809cec615b0effd49…
Inspect dataset →
bitcointimeseries

Bitcoin · Gamma notional

Estimated options gamma notional under the source methodology.

TemporalbitemporalVersions0UnitUSD
CATALOG MANIFESTeb2461ec10b377e1c62cd8a6b1fb…
Inspect dataset →
bitcointimeseries

Bitcoin · Global M2

Global broad-money aggregate under the source methodology.

TemporalbitemporalVersions0UnitUSD
CATALOG MANIFESTf649a821d890a1c6b2953b2dcf7e…
Inspect dataset →
bitcointimeseries

Bitcoin · Gold price

Gold spot or benchmark price in U.S. dollars.

TemporalbitemporalVersions0UnitUSD
CATALOG MANIFEST69d7b6267ce12c3fd87c50286d40…
Inspect dataset →
bitcointimeseries

Bitcoin · Hashprice

Miner hashprice under the bound methodology.

TemporalbitemporalVersions0UnitUSD/PH/day
CATALOG MANIFESTbc81dd4df34babdc5e7b176300d0…
Inspect dataset →
bitcointimeseries

Bitcoin · Hashrate

Estimated Bitcoin network hash rate.

TemporalbitemporalVersions0UnitEH/s
CATALOG MANIFESTc645d482a78d55c68472f16ec61f…
Inspect dataset →
bitcointimeseries

Bitcoin · Implied volatility

Bitcoin options implied volatility under the bound tenor methodology.

TemporalbitemporalVersions0Unit%
CATALOG MANIFEST6503fe812c5465c13be25cdf3abd…
Inspect dataset →
bitcointimeseries

Bitcoin · Implied-volatility surface

Implied volatility with expiry and strike/delta/moneyness dimensions; no interpolation is implied.

TemporalbitemporalVersions0Unit%
CATALOG MANIFESTccb8ae8948c1adfe7bb11960fd3e…
Inspect dataset →
bitcointimeseries

Bitcoin · Liquidation cluster notional

Estimated or observed liquidation-cluster notional with trigger-price/side/venue dimensions.

TemporalbitemporalVersions0UnitUSD
CATALOG MANIFESTdb2f0cc84aef36b413cd8d9dc510…
Inspect dataset →
bitcointimeseries

Bitcoin · Long liquidations

Long-position liquidation notional over the source interval.

TemporalbitemporalVersions0UnitUSD
CATALOG MANIFEST82a44a40a22bb968ed133bb13ad7…
Inspect dataset →
bitcointimeseries

Bitcoin · LTH cost basis

Long-term-holder cost-basis estimate under the bound cohort methodology.

TemporalbitemporalVersions0UnitUSD
CATALOG MANIFEST9edee64a5e034a61bd5f979777bc…
Inspect dataset →
bitcointimeseries

Bitcoin · Market capitalization

Bitcoin market capitalization.

TemporalbitemporalVersions0UnitUSD
CATALOG MANIFESTbc0d2976eb593a17e98c32aafd08…
Inspect dataset →
bitcointimeseries

Bitcoin · Mempool bytes

Observed or estimated mempool size in bytes.

TemporalbitemporalVersions0Unitbytes
CATALOG MANIFESTc8aba8724ad183a51355b95ec6e1…
Inspect dataset →
bitcointimeseries

Bitcoin · Miner revenue

Miner revenue over the source interval.

TemporalbitemporalVersions0UnitUSD
CATALOG MANIFESTe57a85a063d51f28fc98c6d83566…
Inspect dataset →
bitcointimeseries

Bitcoin · MVRV

Market-value-to-realized-value ratio.

TemporalbitemporalVersions0Unitratio
CATALOG MANIFEST4d0b7732ec2d9beb93fe146570ab…
Inspect dataset →
bitcointimeseries

Bitcoin · Open interest

Aggregate derivatives open interest in U.S. dollars.

TemporalbitemporalVersions0UnitUSD
CATALOG MANIFESTebc324e4fc9b0750f1ac6bfd41d0…
Inspect dataset →
bitcointimeseries

Bitcoin · Options open interest

Aggregate Bitcoin options open interest.

TemporalbitemporalVersions0UnitUSD
CATALOG MANIFEST7cc9142d036de3e60116d2265191…
Inspect dataset →
bitcointimeseries

Bitcoin · Order-book level depth

Visible order-book notional with side and price/distance/venue dimensions.

TemporalbitemporalVersions0UnitUSD
CATALOG MANIFESTba3b7b0bb41ad111402b3f30147b…
Inspect dataset →
bitcointimeseries

Bitcoin · Perpetual funding rate

Perpetual swap funding rate under the source interval and venue methodology.

TemporalbitemporalVersions0Unit%
CATALOG MANIFESTefdc9c1cf69a5d25bd43ebad0ea2…
Inspect dataset →
bitcointimeseries

Bitcoin · Public-company holdings

Disclosed Bitcoin holdings of tracked public companies.

TemporalbitemporalVersions0UnitBTC
CATALOG MANIFEST6073d21b9a5f487d9fb90034f4fc…
Inspect dataset →
bitcointimeseries

Bitcoin · Put/call ratio

Put-to-call ratio under the bound volume or open-interest methodology.

TemporalbitemporalVersions0Unitratio
CATALOG MANIFEST5649af7746d1aecb16f8545c2bff…
Inspect dataset →
bitcointimeseries

Bitcoin · Realized capitalization

Bitcoin realized capitalization under the bound UTXO/entity methodology.

TemporalbitemporalVersions0UnitUSD
CATALOG MANIFEST845a6f901e5eb94fbe1dc6797350…
Inspect dataset →
bitcointimeseries

Bitcoin · Realized price

Bitcoin realized price under the bound methodology.

TemporalbitemporalVersions0UnitUSD
CATALOG MANIFEST54f1d5737cbdc0b6718e54215591…
Inspect dataset →
bitcointimeseries

Bitcoin · Short liquidations

Short-position liquidation notional over the source interval.

TemporalbitemporalVersions0UnitUSD
CATALOG MANIFESTa741d9dfedb4b8e5aede7b7c6e1e…
Inspect dataset →
bitcointimeseries

Bitcoin · Spot depth ±2%

Aggregate visible spot order-book depth within two percent.

TemporalbitemporalVersions0UnitUSD
CATALOG MANIFEST0055ddc3666c5490df0b30c974f9…
Inspect dataset →
bitcointimeseries

Bitcoin · Spot price

Bitcoin spot price in U.S. dollars.

TemporalbitemporalVersions486UnitUSD
CATALOG MANIFEST046e737b3bb9a9f8d512ca87ca2a…
Inspect dataset →
bitcointimeseries

Bitcoin · Stablecoin exchange balance

Tracked stablecoin balances on exchanges.

TemporalbitemporalVersions0UnitUSD
CATALOG MANIFESTe345bd1e29b4ce6af5213f321134…
Inspect dataset →
bitcointimeseries

Bitcoin · Stablecoin supply

Tracked stablecoin supply relevant to digital-asset liquidity.

TemporalbitemporalVersions0UnitUSD
CATALOG MANIFESTe3285e913479e729c6e219252ff0…
Inspect dataset →
bitcointimeseries

Bitcoin · STH cost basis

Short-term-holder cost-basis estimate under the bound cohort methodology.

TemporalbitemporalVersions0UnitUSD
CATALOG MANIFESTb271380575e8732c7d3c00c78eba…
Inspect dataset →
bitcointimeseries

Bitcoin · Supply in profit

Share of tracked Bitcoin supply in profit under the bound methodology.

TemporalbitemporalVersions0Unit%
CATALOG MANIFEST36f7c8db138f542bb29505130a0c…
Inspect dataset →
bitcointimeseries

Bitcoin · U.S. 10Y yield

U.S. 10-year Treasury yield.

TemporalbitemporalVersions0Unit%
CATALOG MANIFESTe2104a664180321aee843f3c61e0…
Inspect dataset →
bitcointimeseries

Bitcoin · U.S. Dollar Index

U.S. Dollar Index observation.

TemporalbitemporalVersions0Unitindex
CATALOG MANIFESTff41fd274888c6c853e865f97c85…
Inspect dataset →
Adapter philosophy

Transport is replaceable. Provenance is not.

CSV today, API tomorrow, protocol node later — each ingestion path must declare its adapter version and preserve the raw source evidence.