← The evidence ledger
Evidence row 3064665
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://sellat.app/api/v2/proofs
- Recorded
- Previous row
- #2633605
- Body SHA-256
- 75f5f33ce62df80ba510d704caed55e03e73879f9867dce9ff3cb46f2cd11e7a
- Leaf
- 0x160967dde7876ed07a71f2da6a3e8f8f0354057346037ed44bbe2ba8afdde50b
What was observed
{
"endpoints": [
[
"x402",
"https://sellat.app/api/v2/proofs"
]
],
"name": "Sellat",
"owner_address": "0xedeb27856ffb8c313931b2dce0f8375f27f4d87a",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0xeDeb27856FfB8c313931B2DCE0f8375F27f4d87a",
"scheme": "exact"
}
],
"description": "Timestamp and notarize any file, data or AI agent log by its SHA-256 hash: blockchain proof of existence and integrity for tamper-evident audit trails, anchored on Polygon in minutes, then Bitcoin (OpenTimestamps); not a notary act. Returns proof_id, certificate, proof.json and evidence ZIP, verifiable without Sellat. Use when you must prove exact data or an agent record existed and is intact.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"hash": "bb4963cfebdecdfee366f63e793329811c98546951da951d7d7eaa3bacbf7015",
"metadata": {
"ref": "optional"
},
"name": "sellat-example-20261104144136-82d6ceef.txt"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"anchoring": {
"policy": "fast"
},
"api_key": "<shown once: read-only key for this wallet’s proofs>",
"created": true,
"hash": "<sha256>",
"id": "<proof_id>",
"next": "POST /api/v2/proofs/{id}/qualified adds the eIDAS qualified timestamp (RFC 3161) for 0.90 USD",
"payment": {
"amount_usd": "0.01",
"charged": true,
"transaction": "<tx hash on Base>"
},
"proof_id": "<proof_id: use it in POST /api/v2/proofs/{id}/qualified>",
"state": "queued → anchored (minutes)",
"urls": {
"certificate": "https://sellat.app/certificate/<id>",
"evidence_zip": "https://sellat.app/api/v2/proofs/<id>/evidence.zip",
"proof_json": "https://sellat.app/api/v2/proof/<id>.json",
"self": "https://sellat.app/api/v2/proofs/<id>"
}
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"headers": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"pathParams": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"queryParams": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"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"
}
}
},
"iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1792345485/bazaar-icons/bde6353fd8b55735.png",
"lastUpdated": "2026-11-04T14:41:36.792Z",
"quality": {
"l30DaysTotalCalls": 14,
"l30DaysUniquePayers": 3,
"lastCalledAt": "2026-11-04T14:41:35.958Z"
},
"resource": "https://sellat.app/api/v2/proofs",
"serviceName": "Sellat",
"tags": [
"timestamp",
"notarize",
"proof-of-existence",
"eidas",
"qualified-timestamp"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Timestamp and notarize any file, data or AI agent log by its SHA-256 hash: blockchain proof of existence and integrity for tamper-evident audit trails, anchored on Polygon in minutes, then Bitcoin (OpenTimestamps); not a notary act. Returns proof_id, certificate, proof.json and evidence ZIP, verifiable without Sellat. Use when you must prove exact data or an agent record existed and is intact."
}What the leaf hashes
{"body":"75f5f33ce62df80ba510d704caed55e03e73879f9867dce9ff3cb46f2cd11e7a","id":3064665,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793822231489960,"prev":2633605,"subject":"x402_bazaar:https://sellat.app/api/v2/proofs","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (424109 rows).
- 0x1609487959f3d5d3d7febf9e5b4d87d0af900e514a8c6c018142900aef92cf0b
- 0xdb223dc28c44e0c84605eb503719428550df9da9512a32a98ca0aeb67120f925
- 0x49d307428d9199a9c18e12abda9ac354ed8e00e2ed06d55185fc31b201bb24f8
- 0xfb83b7665708a64f5244733d51963bb6df8de26b5cf8ada3e1bb229446304ab1
- 0xf8b614694342a83ba64f6bea2bb234d12c0814de84531c819ae3f6f87a52203d
- 0x0f5d2f96e2dfc576b06c7270d3bfdc3eacaad75ef70af89cd6c2b8ec84822053
- 0x0af46a1043b630212f247fa80c2704a2d5b673b15e22bfcca78eee7346edadd0
- 0x85cce9762cd204906c9cc2138e9ace63d022fe64e632ebe7f5531043e1d4fe23
- 0xd26c782be9d9ad037f6f3ef651a5844367654449c2e40177390e2a0119281bb8
- 0x6fc1a1205bf9033e46ae957f2d419855bc6a04f29c10936d57b1916c17747b4b
- 0xb10f9a195117702a180cd3935fbde4b618532b483b6f32ee7489099ba7bbdc78
- 0x1d79a5b2c42e1f6940b4119fb3dcf72aae1f1604d51ec17ad730639cf1b75b1d
- 0x713a7edc522e56365d3844cfd9f5c8946a4467d3ccca145361b016f2840232a8
- 0x6ac43d1174fbbc2d100be6f9123ae0aef5477b6638d0ccc4c3b63b712b3ff98a
- 0xc548b1872185ffa8b629b319d34df11bb7ba9b287199b96bea02abad81eebaa6
- 0xa9c5ec1f03532da98f64c2c9386083d4c5202ff37eb07bd4beb6b8db6e4b8c1e
- 0x01c26569ec8e231551522ab452fd5d417c3d66f29c7c76886a8ec295a18dd624
- 0x02f64ca19e7d9b09718851d2ce3abf641982580de99411626d894607cf386cd5
- 0x10067354f57fa0cd86b7423e67cc1c7d107d7c9c6823df5246c4fb63b60575e5
- Day root
- 0xd4eed8c0ea3c90ec6f262b19fcc3b849f30cb82a0f84b8b89569e48af7d0c1ee
- Chained
- 0x59305749c32724a02a23c368834d8a36ae9908da93a915e2962fffe01b4e591b
- Published
- On Arc Testnet, block 70772483: 0x813d56041c1efd407e56047129b597b154a1cb26458bb2768fd0a4630ac97345