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Download the evidence behind the guides.

Clean, machine-readable records for collectors, journalists, researchers, developers, and search systems. Every dataset exposes its version, fields, review date, and evidence boundary.

Datasets
10
Formats
CSV and JSON
License
CC BY 4.0

Published datasets

Versioned by review date, bounded by the evidence, and linked to primary sources.

DATA 01

Research Source Ledger

Thirteen official product, checklist, grading, pricing, service, and partnership sources with verification dates, review cadences, expected signals, and dependent public paths.

Rows
13
Reviewed
2026-09-30
License
CC BY 4.0
Fields
source name, publisher, official URL, verified date, review cadence, affected public paths, expected signals
Evidence boundary
Indexes Card Collector Capital's source checks. It does not republish or relicense the linked third-party documents.
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DATA 02

Official Bowman Parallel Odds Registry

427 official Topps odds rows with product, parallel name, category, format-level pack odds, source page, and separately reviewed serial-number evidence.

Rows
427
Reviewed
2026-09-30
License
CC BY 4.0
Fields
product, parallel, category, format, pack odds, source URL, reviewed date
Evidence boundary
All 427 pack-odds rows rechecked September 30; serial-number annotations retain their separate August 18 verification date where the guide could not be reopened. A row is not a statement about a specific box, card condition, or resale result.
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DATA 03

Official Bowman Prospect Checklist Lookup

1,722 official prospect, variation, and autograph checklist rows with product, card code, player, family, heading, PDF page, and source URL.

Rows
1722
Reviewed
2026-09-30
License
CC BY 4.0
Fields
product, card code, player, family, checklist heading, PDF page, source URL
Evidence boundary
Transcribes official checklist rows. A checklist entry does not verify the identity, version, condition, or authenticity of a physical card.
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DATA 04

Sports Card Product Library

Fifty-four manufacturer-sourced product records with sport, format, status, official source, and the card fields collectors should verify.

Rows
54
Reviewed
2026-08-18
License
CC BY 4.0
Fields
product, sport, format, release status, official source, verification fields
Evidence boundary
Summarizes manufacturer-published product information as reviewed. Release status and product details are not current beyond the displayed date.
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DATA 05

Verified Notable Sports Card Sales

Eight notable public or documented private sales with the exact card, grade, amount, date, venue, and primary source.

Rows
8
Reviewed
2026-08-15
License
CC BY 4.0
Fields
card, grade, sale amount, sale date, venue, primary source
Evidence boundary
Documents selected historical transactions from cited sources. The records are not a current valuation feed or an estimate for another card.
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DATA 06

Grading Company Service Reference

Plain-English service records for PSA, CGC, SGC, TAG, Arena Club, and Advanced Grading with official source links.

Rows
6
Reviewed
2026-08-18
License
CC BY 4.0
Fields
company, service, published price, collector fit, official source, reviewed date
Evidence boundary
Summarizes company-stated services for reference. It does not rank graders, estimate outcomes, or establish a resale premium.
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DATA 07

Published Grading Service Pricing Snapshot

Sixteen company-published service routes with per-card price, quantity minimum, value limit when published, turnaround wording, and direct or partner submission path.

Rows
16
Reviewed
2026-09-30
License
CC BY 4.0
Fields
company, service route, published price per card, minimum quantity, maximum card value, turnaround, submission path, official source, reviewed date, evidence boundary
Evidence boundary
September 30 review checks current official service tiers and submission routes. Each row keeps its actual reviewed date. These are not total-cost estimates, grading predictions, or resale claims.
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DATA 08

Prospect Card Evidence Index

Twenty-nine one-row-per-player dossier states spanning 94 selected card records, with verified counts, primary official player sources, and the next open verification task.

Rows
29
Reviewed
2026-09-30
License
CC BY 4.0
Fields
player, aliases, sport, current stage, dossier path, evidence state, verified card-record count, primary official source, reviewed date, next verification task
Evidence boundary
The September 30 review adds 15 selected records and updates player context. Historical card-source dates and access limits remain explicit in the dossiers. Two zero-record open states mean no official card record was verified in the reviewed source set, not that no card exists.
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DATA 09

Research Route Index

227 public research routes with canonical paths, titles, plain summaries, topics, publication dates, review dates, and featured graphic paths.

Rows
227
Reviewed
2026-09-30
License
CC BY 4.0
Fields
path, canonical URL, title, summary, topic, published date, reviewed date
Evidence boundary
Indexes the current featured research feed and its public paths. Inclusion does not make a page current beyond its own review date.
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DATA 10

2026 Topps Heritage Short-Print Checklist

100 unique starred base card numbers, with subjects, checklist sections, source pages and retained manufacturer notes.

Rows
100
Reviewed
2026-09-30
License
CC BY 4.0
Fields
card number, subjects, checklist section, source pages, manufacturer note
Evidence boundary
Transcribed and reconciled against pages 1–8 of the official Topps checklist. Multi-player cards count once. Number 360 retains its additional Back Variation note. This designation is not a per-card print run or authentication test; the source document remains Topps' property.
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Build a first-party research brief

Select evidence modules, state the collector question, and export a report that keeps findings, review dates, sources, and limits together.

Evidence modules
Generated evidence brief

Collector evidence brief

What does the published evidence show, and what still needs verification?

Executive answer

This brief combines 2 first-party research modules. Every finding keeps its review date, source, and evidence boundary.

1

Grading market snapshot

16 published service routes are recorded across 6 grading companies. Advanced Grading is included as a great value for qualifying bulk orders.

Evidence boundary
This is a dated terms snapshot, not a real-time price feed, grade forecast, or resale-premium study.
Reviewed
2026-09-30
2

Bowman checklist coverage

1,722 exact rows from 3 selected official Bowman checklist files are indexed.

Evidence boundary
Coverage counts exact rows in the selected official checklists. It does not claim that every Bowman product is included.
Reviewed
2026-08-18