← The evidence ledger
Evidence row 70980
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://api.ysaere.com/v1/notary/receipts
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- a6992d8b46f16d5abc342c1db0ea3bee6020135d556b476cd32a2a0c093610ad
- Leaf
- 0xd05d7322b8644390fe8dcc8448ed2f50b36c24169963d03efb10e0643b7c48ea
What was observed
{
"endpoints": [
[
"x402",
"https://api.ysaere.com/v1/notary/receipts"
]
],
"name": "api.ysaere.com/v1/notary/receipts",
"owner_address": null,
"raw": {
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"description": "Ysaere Agent Hash Stamp — $0.02 USDC, no account needed. Returns a signed hash_only receipt and verify_url. Free GET resolve and proof. Integrity, not factual truth. Account version: Notary Receipt, 1 credit ($0.10).",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxAmountRequired": "20000",
"maxTimeoutSeconds": 300,
"mimeType": "application/json",
"network": "base",
"outputSchema": {
"input": {
"body": {
"content_hash": "v2:sha512:00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"mode": "hash_only"
},
"bodyType": "json",
"discoverable": true,
"method": "POST",
"type": "http"
},
"inputSchema": {
"description": "Stamp a SHA-512 hash you computed. We never see your content. Integrity, not factual truth.",
"properties": {
"content_hash": {
"description": "Provenance-tagged content hash (v2:sha512:…)",
"type": "string"
},
"mode": {
"description": "hash_only (default) | source_snapshot | source_archive | anchored",
"type": "string"
}
},
"required": [
"content_hash"
],
"type": "object"
},
"output": {
"example": {
"data": {
"content_hash": "v2:sha512:…",
"mode": "hash_only",
"signature": "…",
"verified": true,
"verify_url": "https://api.ysaere.com/v1/notary/receipts/…"
},
"provenance": {
"kind": "external_attestation",
"mode": "hash_only",
"signature": "…",
"verify_url": "https://api.ysaere.com/v1/notary/receipts/…"
},
"usage": {
"credits_consumed": 0,
"payment_rail": "x402",
"x402_tx_hash": "0x…"
}
},
"type": "json"
}
},
"payTo": "0x5D83D8f433e72013ceBd649665662Ee07e030B05",
"resource": "https://api.ysaere.com/v1/notary/receipts",
"scheme": "exact"
}
],
"description": "Ysaere Agent Hash Stamp — $0.02 USDC, no account needed. Returns a signed hash_only receipt and verify_url. Free GET resolve and proof. Integrity, not factual truth. Account version: Notary Receipt, 1 credit ($0.10).",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"content_hash": "v2:sha512:00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"mode": "hash_only"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"data": {
"content_hash": "v2:sha512:…",
"mode": "hash_only",
"signature": "…",
"verified": true,
"verify_url": "https://api.ysaere.com/v1/notary/receipts/…"
},
"provenance": {
"kind": "external_attestation",
"mode": "hash_only",
"signature": "…",
"verify_url": "https://api.ysaere.com/v1/notary/receipts/…"
},
"usage": {
"credits_consumed": 0,
"payment_rail": "x402",
"x402_tx_hash": "0x…"
}
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"properties": {
"body": {
"type": "object"
},
"bodyType": {
"enum": [
"json"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-17T06:19:40.394Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-17T06:19:40.184Z"
},
"resource": "https://api.ysaere.com/v1/notary/receipts",
"type": "http",
"x402Version": 1
},
"source": "x402_bazaar",
"summary": "Ysaere Agent Hash Stamp — $0.02 USDC, no account needed. Returns a signed hash_only receipt and verify_url. Free GET resolve and proof. Integrity, not factual truth. Account version: Notary Receipt, 1 credit ($0.10)."
}What the leaf hashes
{"body":"a6992d8b46f16d5abc342c1db0ea3bee6020135d556b476cd32a2a0c093610ad","id":70980,"kind":"listing","method":"baseline/1","observed_us":1793025481256586,"prev":null,"subject":"x402_bazaar:https://api.ysaere.com/v1/notary/receipts","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).
- 0xd05d6aacef33937e241070b9435665fc6d2e88feaae9b6a64b26e4c4c117351e
- 0x35b1ecf37707df1dc0e37e79b56bc83c47b9172fa7ca8cf59bec2c630bf743fc
- 0x169c633898b61e5e5f99f5c40216913eda0c3a746f672f19c6bf554aa53739dc
- 0x1c96f0b9825f99130fa1a0a0546d47ca8d2859492198e015d732cccc27bac8f1
- 0xf4862728ce89fc5897109d88e70e290d8fd9c681bcab660588b681eb5c9eff8d
- 0x60135e7403247a1c533373908f90a611e6fa18129b88d5c89feaa7d5199d4209
- 0xa49f909ccf37a10194523d44817ee0beddb8871fb14d5d79da88529687f353fb
- 0xc9d718302491e0323592259564ee38d1d3bb65e750785f5a7831d93d960960c7
- 0xfc7a9e704fb560a0dbea71e3d1ffd5c0fe170cb4c5aafc07785e0cdc0aa3ea3b
- 0x0b6cb706c8b3f325ee28e22acdd9550d5608845cb77ee7fa124320b9a4aad34d
- 0x026c75973d292b16fc9c1aefff047e2e4656075d16803275f6ae428cf2826ee1
- 0x3f401930661bff9a668037b662b5b8766fa60035f100a3e9fc585c576d892ffa
- 0xe43762a621da83c0b4b63f549cd2e19c428ac702bfc1038d70233867b06c447f
- 0xefabf1105e09cf52c12c58e60cbb5048b9ac3f02631d1816a926e14bdd86fbdf
- 0xe94ca5b798e9899ad611e57835af42266e20f53f44977e487d81365e30972beb
- 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
- 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae