← The evidence ledger
Evidence row 752768
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://x402.professorsausages.com/sfx/mutate
- Recorded
- Previous row
- #126760
- Body SHA-256
- 707901e8382ed5b5719df38e9583571ad9f8bbcda97c2ec88ef0451eac5671de
- Leaf
- 0xfb7a6c96b67022afacc48e571e5e8ab9d90d5c414cbd2d09a7796699e5d159bf
What was observed
{
"endpoints": [
[
"x402",
"https://x402.professorsausages.com/sfx/mutate"
]
],
"name": "8-bit SFX Generator",
"owner_address": "0x54ebfcf3870439b9db62381848c5dabc05c70d5b",
"raw": {
"accepts": [
{
"amount": "30000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 60,
"network": "eip155:8453",
"payTo": "0x54ebFCF3870439B9db62381848c5DabC05c70d5B",
"scheme": "exact"
}
],
"description": "Mutate a known-good seed's sound (classic sfxr mutate) — nearby variations by parameter perturbation",
"extensions": {
"bazaar": {
"category": "audio",
"info": {
"input": {
"method": "GET",
"queryParams": {
"amount": "0.1",
"bits": "16",
"format": "wav",
"preset": "coin",
"sampleRate": "44100",
"seed": "12345"
},
"type": "http"
},
"output": {
"properties": {
"about": {
"type": "string"
},
"amount": {
"type": "number"
},
"bitsPerSample": {
"enum": [
8,
16
],
"type": "integer"
},
"byteLength": {
"type": "integer"
},
"clipped": {
"type": "integer"
},
"durationMs": {
"type": "integer"
},
"format": {
"enum": [
"wav16",
"wav8",
"retro",
"custom"
],
"type": "string"
},
"formatOverride": {
"properties": {
"applied": {
"enum": [
"wav16",
"wav8",
"retro",
"custom"
],
"type": "string"
},
"detail": {
"type": "string"
},
"overriddenBy": {
"items": {
"enum": [
"bits",
"sampleRate"
],
"type": "string"
},
"type": "array"
},
"requested": {
"type": "string"
}
},
"required": [
"requested",
"applied",
"overriddenBy",
"detail"
],
"type": "object"
},
"freshness": {
"properties": {
"age_seconds": {
"minimum": 0,
"type": "integer"
},
"as_of": {
"type": "string"
},
"max_age_seconds": {
"minimum": 0,
"type": [
"integer",
"null"
]
},
"note": {
"type": "string"
},
"tier": {
"type": "string"
}
},
"required": [
"tier",
"as_of",
"age_seconds",
"max_age_seconds"
],
"type": "object"
},
"mimeType": {
"enum": [
"audio/wav"
],
"type": "string"
},
"params": {
"properties": {
"p_arp_mod": {
"type": "number"
},
"p_arp_speed": {
"type": "number"
},
"p_base_freq": {
"type": "number"
},
"p_duty": {
"type": "number"
},
"p_duty_ramp": {
"type": "number"
},
"p_env_attack": {
"type": "number"
},
"p_env_decay": {
"type": "number"
},
"p_env_punch": {
"type": "number"
},
"p_env_sustain": {
"type": "number"
},
"p_freq_dramp": {
"type": "number"
},
"p_freq_limit": {
"type": "number"
},
"p_freq_ramp": {
"type": "number"
},
"p_hpf_freq": {
"type": "number"
},
"p_hpf_ramp": {
"type": "number"
},
"p_lpf_freq": {
"type": "number"
},
"p_lpf_ramp": {
"type": "number"
},
"p_lpf_resonance": {
"type": "number"
},
"p_pha_offset": {
"type": "number"
},
"p_pha_ramp": {
"type": "number"
},
"p_repeat_speed": {
"type": "number"
},
"p_vib_speed": {
"type": "number"
},
"p_vib_strength": {
"type": "number"
},
"sample_rate": {
"type": "integer"
},
"sample_size": {
"enum": [
8,
16
],
"type": "integer"
},
"sound_vol": {
"type": "number"
},
"wave_type": {
"enum": [
0,
1,
2,
3
],
"type": "integer"
}
},
"type": "object"
},
"preset": {
"type": "string"
},
"related": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"sampleCount": {
"type": "integer"
},
"sampleRate": {
"type": "integer"
},
"seed": {
"type": "integer"
},
"wav_base64": {
"type": "string"
}
},
"required": [
"seed",
"wav_base64",
"params"
],
"type": "object"
}
},
"routeTemplate": "https://x402.professorsausages.com/sfx/mutate",
"schema": {
"properties": {
"input": {
"properties": {
"queryParams": {
"properties": {
"amount": {
"description": "Mutation magnitude.",
"type": "string"
},
"bits": {
"description": "Bit depth. Overrides the format profile; the override is echoed in formatOverride.",
"enum": [
"8",
"16"
],
"type": "string"
},
"format": {
"description": "Fidelity profile: wav is 44.1k/16, wav8 is 44.1k/8, retro is 22k/8. Explicit bits/sampleRate override it.",
"enum": [
"wav",
"wav8",
"retro"
],
"type": "string"
},
"preset": {
"description": "Base preset. Omit for a random base.",
"type": "string"
},
"sampleRate": {
"description": "Sample rate in Hz. Overrides the format profile; the override is echoed in formatOverride.",
"enum": [
"11025",
"22050",
"44100"
],
"type": "string"
},
"seed": {
"description": "Integer seed of the base sound. Omit for a random seed.",
"type": "string"
}
},
"type": "object"
}
},
"type": "object"
},
"output": {
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
},
"help": {
"docs": "https://x402.professorsausages.com/sfx",
"example": "https://x402.professorsausages.com/sfx/mutate",
"openapi": "https://x402.professorsausages.com/sfx/openapi.json",
"sample": "https://x402.professorsausages.com/sfx/sample"
}
},
"lastUpdated": "2026-10-28T04:52:24.05Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-28T04:52:23.671Z"
},
"resource": "https://x402.professorsausages.com/sfx/mutate",
"serviceName": "8-bit SFX Generator",
"tags": [
"sfx",
"audio",
"8-bit",
"gamedev",
"synth"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Mutate a known-good seed's sound (classic sfxr mutate) — nearby variations by parameter perturbation"
}What the leaf hashes
{"body":"707901e8382ed5b5719df38e9583571ad9f8bbcda97c2ec88ef0451eac5671de","id":752768,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793178843056516,"prev":126760,"subject":"x402_bazaar:https://x402.professorsausages.com/sfx/mutate","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (231336 rows).
- 0xfb7a4f15b8f26347448edc30515d2242ea6206180e5902ef45d8007a286962bc
- 0x068ac75cbf877dc35ef96b8ade4508afa0b5c296a88fa25cb951559641040f1f
- 0x5356278077ed349714549797d5c6b8de4590fb047d5e7b54331248e5009f8486
- 0xd7525b33317a70efba92d773fc5c6a0e3905ae4ce0865e85fa40e749b803b146
- 0x036bf8136fae7f51ed5b8c68cd1d98c9cccb79a8db0bf8134e98447355f6d8a6
- 0x646fed519896211456efe0f44737f0c28310103fbc431660914cc67c1dac9334
- 0xc418c3b90decb42ca0d071625cb1d86e2225ad17819acbc381d1b91db8fe6fb9
- 0x0e54ef69a8839a5f6c3ed70320e313b4c137c81c820a4c0bad0547eaf427fdb8
- 0xf81a7733118f5e42cafa61180351bb4be0161bf9a51062b3bc66e60383ce0197
- 0xd36c983cf50d83d911d6cf9e31950c403dbccf9a0c32d31e868ce333e0662349
- 0x97741f9ef4523a3711e2a78df0587f8696085ffd148a0e05d0e5ca640c26bbba
- 0x81042b5ac08a4e01f6d1d23288e90719c81d9cb6f1dbaac97576a03889cac0b1
- 0x031414b62820da6d87dd5b838d8e9cefadd7e6a5349f46856af4f1ce75c8e6af
- 0xb807f07a34f6739a39ed03265a4a5a9c71ac45230c37dc44fd915cc90aa287db
- 0x33bfb51cb957137510d8a1502cd50241c4c0982e2741290f3b8f2d2b1e69de70
- 0xef2ebd45f2cfd41dc3eb213cc4cc144c46b7e9ead2de0b9f627463bad16e3ec8
- 0x67e9ff3e48c515135fcf3df2675aa4996d35d4a328ce41588ee1a7d93347c823
- 0xe6cfe00ae4e02bc12327e45b5f3334ea5850ba3bcc8e3101d30a8189856a95af
- Day root
- 0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e
- Chained
- 0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be
- Published
- On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae