← The evidence ledger
Evidence row 120007
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://saylorinnovations.com/api/health/overdose-deaths
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 13b5abbffeb4d652326ef1f79bf6da9dbdbd7da2075c0d1fedb912fc4075747c
- Leaf
- 0x486ee9d7e3c50cffdc71c0190a36aa318a62001e86878c1d1543675aac6aed53
What was observed
{
"endpoints": [
[
"x402",
"https://saylorinnovations.com/api/health/overdose-deaths"
]
],
"name": "Saylor Innovations Data Desk",
"owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:datadesk:overdose-deaths",
"name": "USD Coin",
"note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:8453",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:datadesk:overdose-deaths",
"name": "USD Coin",
"note": "Polygon settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:137",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:datadesk:overdose-deaths",
"name": "USD Coin",
"note": "Arbitrum settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:42161",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F",
"memo": "saylor:datadesk:overdose-deaths",
"reference": "9HZNaCAygESLHKHBzWcmB4nRjjNnhdxCED9VfyNMmfS3",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpvdmVyZG9zZS1kZWF0aHMiLCJyZWZlcmVuY2UiOiI5SFpOYUNBeWdFU0xIS0hCeldjbUI0blJqak5uaGR4Q0VEOVZmeU5NbWZTMyIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVQakZXZGQ1QXVmcVNTcWVNMnFOMXh6eWJhcEM4RzR3RUdHa1p3eVREdDF2IiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyNjQ0NDgxNDU2fQ.oDjZVU4y-ceYzIE2uie5YZdPEOXfVIe8s9pMR1E49D0"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F",
"memo": "saylor:datadesk:overdose-deaths",
"reference": "7Bof1aCFPW4a6Ezif3LTtma9b7z6nrzeyU9kwmbssTAB",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpvdmVyZG9zZS1kZWF0aHMiLCJyZWZlcmVuY2UiOiI3Qm9mMWFDRlBXNGE2RXppZjNMVHRtYTliN3o2bnJ6ZXlVOWt3bWJzc1RBQiIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVzOXZNRnJ6YUNFUm1KZnJGNEgyRllENEtDb05rWTExTWNDZThCZW53TllCIiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyNjQ0NDgxNDU3fQ.PnKrjm6uRYcY9yPg07sFBPK71SCUcH_qU65OuFETDx0"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "92151",
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:datadesk:overdose-deaths",
"native": true,
"note": "Native SOL: send lamports with a system transfer, not an SPL transfer. Price is quoted live and this quote expires in 120s.",
"quotedLamports": "95002",
"reference": "AWTwH4RPGc7BeuGifiUfdW4aYwRtgqqFZa1SW1yPLh1K",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpvdmVyZG9zZS1kZWF0aHMiLCJyZWZlcmVuY2UiOiJBV1R3SDRSUEdjN0JldUdpZmlVZmRXNGFZd1J0Z3FxRlphMVNXMXlQTGgxSyIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6bnVsbCwibWluQW1vdW50Ijo5MjE1MSwiZXhwIjoxNzkyNjQ0NDgxNDU3fQ.nsl9QMjOL-Fseus_n-B-x1fEi1Fy22xRlxSLKEzTSU8",
"solUsdPrice": 105.26
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
}
],
"description": "US drug overdose deaths by state - latest 12-month CDC provisional counts for fentanyl, opioids, heroin, cocaine and meth, with year-on-year change",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"drug": "synthetic_opioids",
"months": "6",
"state": "TX"
},
"type": "http"
},
"output": {
"example": {
"change_vs_year_earlier_percent": -14,
"data_complete_percent": 100,
"deaths_year_earlier": 1512,
"drug": "synthetic_opioids",
"drug_label": "Synthetic opioids excluding methadone (mostly illicit fentanyl)",
"latest_deaths": 1301,
"latest_period_end": "2026-05",
"measure": "12-month-ending provisional count of deaths",
"note": "Provisional counts from the CDC VSRR system. predicted_deaths adjusts for reports still pending; reported_deaths is the count actually received. Counts can be suppressed (null) for small numbers.",
"periods": 6,
"series": [
{
"percent_complete": 100,
"period_end": "2026-05",
"predicted_deaths": 1301,
"reported_deaths": 1281
},
{
"percent_complete": 100,
"period_end": "2026-04",
"predicted_deaths": 1363,
"reported_deaths": 1349
},
{
"percent_complete": 100,
"period_end": "2026-03",
"predicted_deaths": 1386,
"reported_deaths": 1376
},
{
"percent_complete": 100,
"period_end": "2026-02",
"predicted_deaths": 1426,
"reported_deaths": 1421
},
{
"percent_complete": 100,
"period_end": "2026-01",
"predicted_deaths": 1404,
"reported_deaths": 1403
},
{
"percent_complete": 100,
"period_end": "2025-12",
"predicted_deaths": 1421,
"reported_deaths": 1421
}
],
"source": "CDC NCHS, VSRR Provisional Drug Overdose Death Counts (data.cdc.gov dataset xkb8-kh2a), public domain",
"state": "TX",
"state_name": "Texas"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"drug": {
"description": "optional all (default), opioids, synthetic_opioids, heroin, natural_opioids, methadone, cocaine or psychostimulants",
"type": "string"
},
"months": {
"description": "optional number of most recent monthly points, 1-60, default 12",
"type": "string"
},
"state": {
"description": "optional US state as TX or Texas, or US for the national total (default US)",
"type": "string"
}
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"change_vs_year_earlier_percent": {
"description": "Percent change of the latest count against a year earlier; negative means deaths fell",
"type": [
"number",
"null"
]
},
"data_complete_percent": {
"description": "Share of expected death records already received for the latest period",
"type": [
"number",
"null"
]
},
"deaths_year_earlier": {
"description": "The same 12-month count one year before the latest period",
"type": [
"number",
"null"
]
},
"drug": {
"description": "Drug group requested: all, opioids, synthetic_opioids, heroin, natural_opioids, methadone, cocaine or psychostimulants",
"type": "string"
},
"drug_label": {
"description": "Plain-language name of that drug group, including the main drug behind it",
"type": "string"
},
"latest_deaths": {
"description": "Deaths in the latest 12-month window; the predicted figure when the CDC has one, otherwise the reported count",
"type": [
"number",
"null"
]
},
"latest_period_end": {
"description": "Most recent month in the series (YYYY-MM); the 12-month window ends here",
"type": "string"
},
"measure": {
"description": "What each number counts: deaths in the 12 months ending at that month",
"type": "string"
},
"note": {
"description": "How to read the figures and when they are suppressed",
"type": "string"
},
"periods": {
"description": "Number of monthly points returned",
"type": "number"
},
"series": {
"description": "Monthly points, newest first",
"items": {
"properties": {
"percent_complete": {
"description": "Share of expected records received for that month",
"type": [
"number",
"null"
]
},
"period_end": {
"description": "Month the 12-month window ends (YYYY-MM)",
"type": [
"string",
"null"
]
},
"predicted_deaths": {
"description": "CDC estimate adjusted for reports still pending",
"type": [
"number",
"null"
]
},
"reported_deaths": {
"description": "Count actually received by the CDC; null when suppressed for small numbers",
"type": [
"number",
"null"
]
}
},
"type": "object"
},
"type": "array"
},
"source": {
"description": "Dataset the numbers come from and its license",
"type": "string"
},
"state": {
"description": "2-letter state code, or US for the national total",
"type": "string"
},
"state_name": {
"description": "Full jurisdiction name",
"type": "string"
}
},
"required": [
"state",
"drug",
"latest_period_end",
"series"
],
"type": "object"
},
"type": {
"const": "json",
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1791811517/bazaar-icons/bc5e2b3d111ebbef.jpg",
"lastUpdated": "2026-10-22T04:46:01.502Z",
"quality": {
"l30DaysTotalCalls": 11,
"l30DaysUniquePayers": 3,
"lastCalledAt": "2026-10-22T04:46:08.002Z"
},
"resource": "https://saylorinnovations.com/api/health/overdose-deaths",
"serviceName": "Saylor Innovations Data Desk",
"tags": [
"fentanyl deaths by state",
"drug overdose deaths 2026",
"opioid deaths per year",
"cdc overdose statistics",
"overdose deaths texas"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "US drug overdose deaths by state - latest 12-month CDC provisional counts for fentanyl, opioids, heroin, cocaine and meth, with year-on-year change"
}What the leaf hashes
{"body":"13b5abbffeb4d652326ef1f79bf6da9dbdbd7da2075c0d1fedb912fc4075747c","id":120007,"kind":"listing","method":"baseline/1","observed_us":1793025617072779,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/health/overdose-deaths","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).
- 0x486ea3e7c6cadb1ad901b06935b7321cfc1ba02ffb8f097324ec5047a4805aad
- 0x21210ccf07ca6259e09d7f9b450dbbad9e6e62dad94037506fce1e81f2790469
- 0xa39dbeb8cfc2e51656c014c270734cfc128526d59a71cd5145d3e509f4ad84a3
- 0x2506d71f43ad946913bb778a1bbd82a3aaa6238896daa3f797e6486d7a8aa1da
- 0x521dbf7a071ef5e2486ef1bc4e15e526681ee4fedd5218b5f25bf5c4d62fb599
- 0xcc7a9163def00c08244896ff6fd3b21bacdff14fd67b8550f9aa635f0fbe6035
- 0x13940e40e9a4662aaff0e6ad65b50b74b02d6b69ca872c8e1ee3ff3c28f4a9c6
- 0xf9cdb451b624c0e918f5285425dc2717098da04e36dc751e78d29a2b5a58f005
- 0x064ae5664a6f6247400a2d7d6130b6f7834a83922110845780acbbe4b2c4c382
- 0x5310f81ab0ad38d96cec4307f26d3ddc5999c60727b9527b541506c3d5584ae6
- 0x698f6ba6ffdd19057a2337a8eb71a612a58ea57160b0993c65313b7a3f2a2956
- 0xae3550e71ca4b0f0b86c9905b234388d6bc01a22e52324fb1ee62a553273a1fe
- 0xb86fa861d04737cb507e721eefbb066d26528fdb6017b1145c18d1223b93ee21
- 0x88e326a39b26e2c125306c9d3805d14398ace088bba9a2a0aa376b811cfb201a
- 0x2be1e80e065dd6b2cc75a7142be22225acd144ac975d70bf24b4f01fd76dc497
- 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
- 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae