Market Trust diligence packet
Spurs vs. Thunder
One-screen answer to a buyer's question: can this market price be cited, used with caveats, discounted, or ignored? The packet separates the verdict from evidence confidence, source freshness, participant quality, integrity screens, and receipts.
So what?
Monitor, but do not cite as current. The evidence is useful as an archived read until the data freshness window refreshes.
Freshness gate: Diligence packet is stale for current product claims. Treat this as archived evidence and wait for a refresh before demos or outreach.
Memo language
Convexly rates this polymarket market "Spurs vs. Thunder" as Do not cite. Use only as a review target. Current-card issues must clear before this price is used as evidence. Caveat to carry: Too much participant flow is unknown while participant-quality evidence is still pending. This is market diligence, not a trading instruction or proof that the market probability is correct.
Caveat to carry: Too much participant flow is unknown while participant-quality evidence is still pending.
Use this packet when
- Use to explain why this market should stay out of a citation set for now.
- Use as a recovery checklist for source freshness, coherence, depth, or evidence gaps.
Do not use it as
- A trading instruction.
- Proof that the market probability is correct.
- A manipulation accusation or person-level identity claim.
What changes the verdict
- Clear hard cap: Too much participant flow is unknown while participant-quality evidence is still pending.
- Clear current blocker: Not enough pillars on this card are measured yet.
- Clear current blocker: Some pillars on this card are still gathering evidence.
Market quality
71 / 100
Interval 41-80
Evidence confidence
medium
61 / 100
Source health
source gate passed
1 sources | dropped 0
Audit chain
570b6cbd2c...
row hash verified
Why this verdict
participant quality pending high unknown flow
Why this rating
Composite 71 · Do not cite
- Coherenceheuristicweight 20.0
No full-provenance CME signal is linked to this condition in the current ledger window; absence of a signal is not proof of coherence.
- · no_linked_cme_signal_in_window
- · absence_of_signal_not_proof_of_coherence
- · cme_signal_window_days:7
- · recent_full_provenance_signals:250
50+12.5 - Liquidityheuristicweight 15.0
One-sided visible ladder; direct spread unavailable, so liquidity is capped and caveated.
- · one_sided_orderbook_boundary
- · direct_bid_ask_spread_missing
- · visible $1k ladder slippage 0pp
- · scorer_version:M2
65+12.2 - Depthmeasuredweight 15.0
$1k visible-ladder slippage estimate is 0pp.
- · visible_ladder_slippage_measured
100+18.8 - Resolution reliabilityheuristicweight 15.0
Resolution source and rule text are present but not independently reviewed.
- · resolution_metadata_present_manual_review_pending
70+13.1 - Participant qualitypendingweight 20.0
Participant-quality inputs exist but do not meet coverage floors.
- · below_publishable_sample_floor
- · current_account_score_join
- · high_participant_concentration
- · high_unknown_flow_share
—no contrib - Integrity risk screenmeasuredweight 10.0
Mild concentration or coordination signals; review before citing.
- · 1 possible wash round-trip detected
- · top-3 wallets control 93% of notional flow
- · flow_events:716
- · distinct_wallets:254
65+8.1 - Audit completenessmeasuredweight 5.0
17 linked artifacts; 0 missing hashes; 0 stale/failing sources.
- · artifact_hashes_present
- · source_watermarks_healthy
100+6.3
How it adds up: composite = Σ(score × weight) / Σ(weight) across measured + heuristic pillars only. Pending and data-rights-blocked pillars are excluded from both numerator and denominator. Total contributing weight = 80.0.
Caveat: 1 pillar pending — the score will recompute as the substrate fills in.
What is being rated
Market identity
Venue
polymarket
condition 0x8246b71524253635...
Category
unmapped
used for coverage and validation breadth
Market status
active
venue-provided lifecycle state when available
Resolution rule
In the upcoming NBA game, scheduled for May 18 at 8:30PM ET: If the Spurs win, the market will resolve to "Spurs". If the Thunder win, the market will resolve to "Thunder". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. The result will be determined based on the final score including any overtime periods.
card_id: mt-v02:polymarket:0x8246b715242536356d2938f90df8b50271fcf6d7586495249e2e9f75a1101981:2026-05-19
market_id: 526e5dfb-6a01-4f26-b86f-3dd9708f3461
venue_market_id: 0x8246b715242536356d2938f90df8b50271fcf6d7586495249e2e9f75a1101981
resolution_source: https://www.nba.com/
Receipt and export
Audit chain
Convexly stores the card payload, removes the row_hash field, canonicalizes the remaining JSON, and recomputes the SHA-256 hash. This is the bridge from a readable verdict to a buyer-reviewable audit chain.
method: market_trust_card_v0_2
row_hash: 570b6cbd2ca32e4a6808c347256ed7f21766b8745016f5d873e94a6ffb7d572b
previous_row_hash: 1e90b9cb7769952808632ae0701dc3936448b746c613674b01210419aae052e2
source_artifact_hashes: acd76effe842b425050a6cd6783f5caef3bc5dcadddcee8015065926c6c69dbf, 19068cde72cca59879dbb769b0073a6b0c4891b64395aa511b1641d59fe54326
Who shaped the price
Participant and integrity screen
Participant-flow screens flagged concentration, unknown-flow, or low-edge-flow conditions for review. This is an integrity-risk screen, not a manipulation accusation and not person-level identity resolution.
Scored flow
0.2%
5 scored accounts
Unknown flow
99.8%
higher unknown flow lowers confidence
Participants
254
public accounts observed
Top flow share
86.9%
concentration diagnostic
Not claiming: wash-trading detection; sybil detection; manipulation-free market.
Ingest status
Source freshness window
The current ingest window is clean enough for review. This is freshness reporting, not an uptime SLA.
Latest orderbook
2026-05-19T08:13:57.669Z
most recent orderbook evidence attached to this card
Sources
1
1 healthy | 0 degraded | 0 stale | 0 failing
Dropped events
0
nonzero dropped events block current-language claims
Observed age
50s
oldest observed source watermark
Ingested age
48s
oldest ingest watermark
Canary vs v1
Validation state
Canary pipeline
blocked
Current card has source, evidence, or robustness issues to clear.
Public v1 promotion
4 public v1 validation gates still open.
Canary readiness says the current batch can be reviewed. Public v1 promotion waits for coverage, clean source-health windows, resolved outcomes, and formula-freeze evidence.
Read the promotion evidence contract- Not enough pillars on this card are measured yet.
- Some pillars on this card are still gathering evidence.
- The rating moves under leave-one-out or weight-perturbation checks.
- 14 consecutive clean source-health days have not yet been observed.
- 30 current cards across 3 market categories are not yet reached.
- The scoring formula must be frozen before validation runs.
- At least one resolved-outcome row is still needed in the validation ledger.
What travels with the score
Top caveats
- Hard cap: Too much participant flow is unknown while participant-quality evidence is still pending.
- Current card issue: Not enough pillars on this card are measured yet.
- Current card issue: Some pillars on this card are still gathering evidence.
- Current card issue: The rating moves under leave-one-out or weight-perturbation checks.
- 1 possible wash round-trip detected
- absence_of_signal_not_proof_of_coherence
Validation requirements
Before stable v1
- 14 consecutive clean source-health days have not yet been observed.
- 30 current cards across 3 market categories are not yet reached.
- The scoring formula must be frozen before validation runs.
- At least one resolved-outcome row is still needed in the validation ledger.
Non-scoring provenance
External context
External sports baselines are identified for review but are not part of the Market Trust score.
Sportsbook consensus line
not integrated
Roster / availability feed
not integrated
Historical base-rate benchmark
not integrated
External context is non-scoring in v0.2. Market Trust still measures market-quality substrate, not absolute truth against outside forecasts.
Rating substrate
Seven-pillar evidence grid
Coherence
weight 20 · heuristic
50 / 100
No full-provenance CME signal is linked to this condition in the current ledger window; absence of a signal is not proof of coherence.
Liquidity
weight 15 · heuristic
65 / 100
One-sided visible ladder; direct spread unavailable, so liquidity is capped and caveated.
Depth
weight 15 · measured
100 / 100
$1k visible-ladder slippage estimate is 0pp.
Resolution reliability
weight 15 · heuristic
70 / 100
Resolution source and rule text are present but not independently reviewed.
Participant quality
weight 20 · pending
pending
Participant-quality inputs exist but do not meet coverage floors.
Integrity risk screen
weight 10 · measured
65 / 100
Mild concentration or coordination signals; review before citing.
Audit completeness
weight 5 · measured
100 / 100
17 linked artifacts; 0 missing hashes; 0 stale/failing sources.
Linked-market consistency
Coherence block
No full-provenance CME signal is linked to this condition in the current ledger window; absence of a signal is not proof of coherence.
Score
50
heuristic evidence
Source refs
0
linked-market or CME artifacts
no linked cme signal in window absence of signal not proof of coherence cme signal window days:7 recent full provenance signals:250
Sensitivity and drivers
Robustness block
Sensitivity verdict
moves
leave-one-out and weight perturbation
Leave-one-out
64-78
score range
Weight perturbation
70-72
score range
Drivers
3
largest weighted contributors
- Coherence is heuristic, not fully measured.
- Coherence scores below 60 and needs stronger evidence before the verdict can improve.
- Liquidity is heuristic, not fully measured.
- Resolution reliability is heuristic, not fully measured.
- Participant quality is pending, not fully measured.
Boundary of the packet
This packet is market diligence, not investment advice, not a claim of absolute truth, and not proof that any trader should buy or sell. It answers whether the market price has enough substrate to cite, monitor, discount, or ignore with receipts attached.