← The evidence ledger
Evidence row 118936
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://qr-api-production-1836.up.railway.app/decode
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 9f2e0ba9bcaae475f8fcee774d63efde9d6f286bc5fd3551035543a867514eaa
- Leaf
- 0xbf72c245f447e9fe093b8313f9c73cffe64530aeb4f2ddf220dc5aae0a6cfe51
What was observed
{
"endpoints": [
[
"x402",
"https://qr-api-production-1836.up.railway.app/decode"
]
],
"name": "qr-api-production-1836.up.railway.app/decode",
"owner_address": "0xffc458db291b4abce020fe3de4f91f2770e537b1",
"raw": {
"accepts": [
{
"amount": "1000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0xFFc458dB291b4ABcE020fE3de4f91F2770E537b1",
"scheme": "exact"
}
],
"description": "Decode QR/barcodes from a base64-encoded image; returns each detected code's type, decoded text, bounding rect, and polygon.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"image_base64": "iVBORw0KGgoAAAANSUhEUgAAASIAAAEiCAYAAABdvt+2AAAABmJLR0QA/wD/AP+gvaeTAAAF..."
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"count": 1,
"image_size": {
"height": 330,
"width": 330
},
"results": [
{
"data": "https://payapi.market",
"polygon": [
{
"x": 40,
"y": 40
},
{
"x": 40,
"y": 290
},
{
"x": 290,
"y": 290
},
{
"x": 290,
"y": 40
}
],
"rect": {
"height": 250,
"left": 40,
"top": 40,
"width": 250
},
"type": "QRCODE"
}
]
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"image_base64": {
"description": "Base64-encoded image (PNG/JPEG/GIF) containing one or more QR codes. A data: URI prefix is allowed.",
"type": "string"
}
},
"required": [
"image_base64"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"count": {
"description": "Number of QR/barcodes detected in the image.",
"type": "integer"
},
"image_size": {
"description": "Decoded image dimensions in pixels.",
"type": "object"
},
"results": {
"description": "One record per detected code: type, decoded data, bounding rect, and polygon points.",
"type": "array"
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-08T07:52:00.839Z",
"quality": {
"l30DaysTotalCalls": 3,
"l30DaysUniquePayers": 3,
"lastCalledAt": "2026-10-08T07:52:00.606Z"
},
"resource": "https://qr-api-production-1836.up.railway.app/decode",
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Decode QR/barcodes from a base64-encoded image; returns each detected code's type, decoded text, bounding rect, and polygon."
}What the leaf hashes
{"body":"9f2e0ba9bcaae475f8fcee774d63efde9d6f286bc5fd3551035543a867514eaa","id":118936,"kind":"listing","method":"baseline/1","observed_us":1793025614037113,"prev":null,"subject":"x402_bazaar:https://qr-api-production-1836.up.railway.app/decode","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).
- 0xbf7272c813f05856335714dc4f8c2eac7d24a93ea31b8ea95fa0d86a8eac0a30
- 0x71ffd99f034b18993530850b19e4632d01ee58952948f85b930fc9d4e16414d7
- 0x1987ee700cd71c69303f767571d265d90db547fd0a3b789df36454e0ca19dfdf
- 0x3ba650fd08f1b3d9d0a287ea51d2fa2ed5f5b6352f73b8c97aacef0ed53f8a43
- 0x7b98dbfa112b3b6e52cde2dd635e226f1d483ceb98059593f779cbc4c071a145
- 0x4e20f1ea0562c628bf8600e4963181c0d9e6aaae2c302c02d5410ccb1b872a75
- 0xf4749398d51b1b4767b9b8e976f7bcb396fb389331f8e80e5ffc2a9caafc84be
- 0x04690db18aeb8805864ba40fa00584930386da5b7c4fd885b61039699c0f1e5f
- 0x2acb1759545dffd0f9d69f1505ae44a8b895f6571c40306d90c2f277ca0e6173
- 0x756a464688b460d8d275513c88e70a991307cf0931a5c4f982289e598f3c1b81
- 0x0decbdcd600e934c38d679c1b99f27ba6676644e856ed6ba36bca74feb432866
- 0xc520305226daa0caf1c2416854f726ec072c950c1903497b2a1e88b0c6f406da
- 0x96eae331a78c1c9248bc58130ff83d31b884760a51fe7191de2a39105ae7c072
- 0xdbe2e8dd65ea1248b2936612538f18268abd5cf27ebdab3737694571ad496004
- 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
- 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
- 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae