← The evidence ledger
Evidence row 124733
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://www.trezalabs.com/api/x402/music
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- de70fd9337da799b53ee1ba9e243a01a097324055a08025e6bb1a7883ca38ca7
- Leaf
- 0xb914a0bb0f7b30bd8baf9f5e00a2334899864accfb668a09d0b4eaee8963e456
What was observed
{
"endpoints": [
[
"x402",
"https://www.trezalabs.com/api/x402/music"
]
],
"name": "Treza",
"owner_address": "0xae393a9cd728f7397f50f6f8c88096a0f3d2b42c",
"raw": {
"accepts": [
{
"amount": "60000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:8453",
"payTo": "0xaE393a9CD728F7397F50f6f8C88096a0F3D2b42C",
"scheme": "exact"
},
{
"amount": "60000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "EX4MyYWHc7NKBGuytmMpxixM7ovSWYLNy5acN2mFfoGd",
"scheme": "exact"
}
],
"description": "Music generation: describe a track, get an original piece back in the same response. Google Lyria 3: a 30-second clip ($0.06) or a full song ($0.12). No account or API key: the payment is the only credential.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"model": "lyria-3-clip",
"prompt": "warm lo-fi hip hop, soft piano chords, vinyl crackle, relaxed 80 bpm groove"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"audio": "https://www.trezalabs.com/api/media/generated/x402_music/1a2b3c4d.mp3?s=...&c=...",
"model": "lyria-3-clip",
"paidUsd": 0.06,
"runId": "2026-09-23T18:04:11.000Z#1a2b3c4d",
"status": "success",
"statusUrl": "https://www.trezalabs.com/api/x402/music?runId=...&token=...",
"transaction": "0x..."
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"async": {
"default": false,
"description": "true: answer at once, status running with a statusUrl.",
"type": "boolean"
},
"model": {
"default": "lyria-3-clip",
"description": "lyria-3-clip: A 30-second piece: a bed for a short video, a sting, a loop. $0.06 lyria-3-pro: A full-length song with structure (intro, development, ending). $0.12",
"enum": [
"lyria-3-clip",
"lyria-3-pro"
],
"type": "string"
},
"prompt": {
"description": "Genre, mood, instruments, tempo.",
"maxLength": 2000,
"type": "string"
}
},
"required": [
"prompt"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-25T20:29:52.999Z",
"quality": {
"l30DaysTotalCalls": 30,
"l30DaysUniquePayers": 7,
"lastCalledAt": "2026-10-25T20:29:52.793Z"
},
"resource": "https://www.trezalabs.com/api/x402/music",
"serviceName": "Treza",
"tags": [
"music",
"music-generation",
"text-to-music",
"audio",
"lyria"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Music generation: describe a track, get an original piece back in the same response. Google Lyria 3: a 30-second clip ($0.06) or a full song ($0.12). No account or API key: the payment is the only credential."
}What the leaf hashes
{"body":"de70fd9337da799b53ee1ba9e243a01a097324055a08025e6bb1a7883ca38ca7","id":124733,"kind":"listing","method":"baseline/1","observed_us":1793025625182991,"prev":null,"subject":"x402_bazaar:https://www.trezalabs.com/api/x402/music","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).
- 0xb915d5dbb0276cfa9625c1f6d2b4671d9e2566493f6c721d977864c09636d974
- 0x0043dc004d0ffe391ebd38751c236a4fa80367c03c3fee2ecea735ab4217f269
- 0xa055a023a27fe094c90ce5f627b954fe84c7464117bbc28577e1a1f12074e3fa
- 0xa6188420a54b815c820e17c294b0dc3bae6b5d3be79240f47268e6492fe8dfc9
- 0x241199d8cdd77732c8f6f257cf5f242fb60769abd87e3f988d37f526ce545f6c
- 0x83fbb0d39ea01812afb1dac4e775cd40afabaabbb21f5987c836e22ab65ba30b
- 0x6729fb1be8a939d4149360be8edf4a92ca061bb3b2d86922d650290bca3afdb6
- 0x1c1e11fc2487500a9c221c1db79b77bf164feb26048cf9c98b208614f16511fc
- 0x2690027586151aef25bffaaa23dbe6062fb829109685064346cf0542b92a73ec
- 0x2a5c6878834071db08774384e91dbce1a180bcb1f079fcc809e29d3efca761f5
- 0xcf50b54d8921f0c22877e0b8d6b8393a1954218f000f7cac374e9f40a024f700
- 0xb6efd79902cac6d5a402ebecb8069402f00961ab80cd71b4d647fbc686d975ec
- 0x2f43fe2b2533a5f40c107c114e458e226102f5f8ae91f097e964345880e30928
- 0xf692ce2b0a640ec9f75aa960e5fb1c2c7091a04e24881798735752c19014e519
- 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
- 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
- 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae