← The evidence ledger
Evidence row 2201533
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://nasa-media.x402tookit.com/nasa-media-compare
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 2a3abf63480c2591b393594d05352eb8978544d38a132df9bae04a02d3a61888
- Leaf
- 0xe3503bb594b5273a52fd0a8a7e3047def80da6f6b753a462e4fa62f601b3e587
What was observed
{
"endpoints": [
[
"x402",
"https://nasa-media.x402tookit.com/nasa-media-compare"
]
],
"name": "NASA Media Library",
"owner_address": "0xb531320805c5bed1d46aeadcf4f008fdf172dbda",
"raw": {
"accepts": [
{
"amount": "50000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
},
{
"amount": "50000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
"transactionVersions": [
0
]
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "DUPiupXtuox38dcGoXUKer5mAydCzmaHjrbQ66qeEm8s",
"scheme": "exact"
},
{
"amount": "50000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:137",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
},
{
"amount": "50000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:42161",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
}
],
"description": "Compare two queries in NASA's library: total hits and hits per media type (image, video, audio) with the ratio.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"q1": "apollo 11",
"q2": "apollo 17"
},
"type": "http"
},
"output": {
"example": {
"asOf": "2026-10-21T05:54:05.220Z",
"degraded": false,
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"notChecked": [
"overlap between the two result sets",
"relevance of the hits"
],
"q1": {
"byMediaType": {
"audio": 24,
"image": 1522,
"video": 71
},
"query": "apollo 11",
"total": 1617
},
"q2": {
"byMediaType": {
"audio": 23,
"image": 573,
"video": 22
},
"query": "apollo 17",
"total": 618
},
"ratioQ1ToQ2": 2.617,
"reasons": [
"SIMILAR_SIZE means the totals are within 10% of each other.",
"Hit counts are text matches in the library index and say how much is indexed, not how important a topic is.",
"…1 more"
],
"source": "NASA Image and Video Library",
"sourceUrl": "https://images.nasa.gov",
"summary": "\"apollo 11\": 1617 hit(s); \"apollo 17\": 618 hit(s) (ratio 2.617).",
"verdict": "Q1_LARGER"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"media_type": {
"description": "Limit the comparison to image, video or audio; default all three",
"type": "string"
},
"q1": {
"description": "First query, up to 100 characters",
"type": "string"
},
"q2": {
"description": "Second query, up to 100 characters",
"type": "string"
}
},
"required": [
"q1",
"q2"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"asOf": {
"type": [
"null",
"string"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"q1": {
"properties": {
"byMediaType": {
"properties": {
"audio": {
"type": [
"null",
"number"
]
},
"image": {
"type": [
"null",
"number"
]
},
"video": {
"type": [
"null",
"number"
]
}
},
"type": [
"null",
"object"
]
},
"query": {
"type": [
"null",
"string"
]
},
"total": {
"type": [
"null",
"number"
]
}
},
"type": [
"null",
"object"
]
},
"q2": {
"properties": {
"byMediaType": {
"properties": {
"audio": {
"type": [
"null",
"number"
]
},
"image": {
"type": [
"null",
"number"
]
},
"video": {
"type": [
"null",
"number"
]
}
},
"type": [
"null",
"object"
]
},
"query": {
"type": [
"null",
"string"
]
},
"total": {
"type": [
"null",
"number"
]
}
},
"type": [
"null",
"object"
]
},
"ratioQ1ToQ2": {
"type": [
"null",
"number"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"source": {
"type": [
"null",
"string"
]
},
"sourceUrl": {
"type": [
"null",
"string"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"verdict": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-01T23:40:15.944Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-11-01T23:40:15.672Z"
},
"resource": "https://nasa-media.x402tookit.com/nasa-media-compare",
"serviceName": "NASA Media Library",
"tags": [
"nasa",
"comparison",
"statistics",
"media"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Compare two queries in NASA's library: total hits and hits per media type (image, video, audio) with the ratio."
}What the leaf hashes
{"body":"2a3abf63480c2591b393594d05352eb8978544d38a132df9bae04a02d3a61888","id":2201533,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646805870479,"prev":null,"subject":"x402_bazaar:https://nasa-media.x402tookit.com/nasa-media-compare","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (444186 rows).
- 0xe3508df9061a3039e7e11b4f28ef4fa75cd4a9f0294dcad9eb11b94b30b57023
- 0x23140bca8f79eabb1f4691e250aadd72416a1df4e4b38b649d3c3b04596eb26e
- 0x3f4dc43a9357b143770aa82c263d9672ba82ee84810994a71737e3cb1e373d58
- 0xe033f65f1a039e8da3439430a8203bb8f5d6a3e5bcae1b00699fc1954c55afdd
- 0xd6d9ac416632541796cedc86c6e7095afd986daa73101fa5bb5a260d2055d2a2
- 0x3adcba9a302b27b8df1fbf5b9415637d9a61c4b09822aa909fbad436f882242c
- 0x95a9d21f735867a28d2aa47e927bab8d35e9893cd739a1569637269d5a21452a
- 0x8ee6dc10de39c26c632ea0d8741d073568dda152e9dfe4bcf08e4e6f05d1eed8
- 0xf5f8632fe07a90c540ce9afdf06b1be6e10cdce51bd30e67a83ebfeb97d8c04b
- 0x29cc9620385c92c75a050448658c0db02e88b987c883c37d41d5d8e97433273d
- 0x3dc07e7ba06e935a44f5bfc499122aa5ce625052b8f06246e76f153d8edd8c5c
- 0xa425522b81e7f1b0749052147327a6c322a17427ffc07733771c29e826d80c1b
- 0x5dd9fbf811b05f3e5af51f812b6eea86a039a192f115aecc0fd37a502e3a04f1
- 0x3e441d3f53c7b69d6c73ef93d327dfc3071a522c550856540832b34fcb531738
- 0xd643f764eee39146411d4bff8903a327f4f8f55616e14e57281a245206d6ed2b
- 0x6dd7e4db65395e8670c7c2747d44fec79e03305934ef4746bf5dbca04ec6ec49
- 0xec5d643575d83c9e07e65deeef71943b53cbf3007e7e2b9a6ef414081509b0cc
- 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af