← The evidence ledger
Evidence row 120719
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://saylorinnovations.com/api/tools/btc-address
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 554a7def6f378ef94766d9047cc9aa7afa95539003a1f2da8432275682ebe9a5
- Leaf
- 0x203aeafd7cc32d59ff34d2447971741973fd23ff9ef2baf83b565ec43404dc18
What was observed
{
"endpoints": [
[
"x402",
"https://saylorinnovations.com/api/tools/btc-address"
]
],
"name": "Saylor Innovations Dev Tools",
"owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:devkit:tools-btc-address",
"name": "USD Coin",
"note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:8453",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:devkit:tools-btc-address",
"name": "USD Coin",
"note": "Polygon settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:137",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"assetTransferMethod": "eip3009",
"facilitatorOnly": true,
"memo": "saylor:devkit:tools-btc-address",
"name": "USD Coin",
"note": "Arbitrum settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:42161",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
"memo": "saylor:devkit:tools-btc-address",
"reference": "BXEd5nqnixpzVsupmjMnUNyfpMRD9T6W5hSBFw24GDaY",
"session": "eyJhcnRpY2xlSWQiOiJkZXZraXQ6dG9vbHMtYnRjLWFkZHJlc3MiLCJyZWZlcmVuY2UiOiJCWEVkNW5xbml4cHpWc3VwbWpNblVOeWZwTVJEOVQ2VzVoU0JGdzI0R0RhWSIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVQakZXZGQ1QXVmcVNTcWVNMnFOMXh6eWJhcEM4RzR3RUdHa1p3eVREdDF2IiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyMzk5NzMzOTM3fQ.dCROjFKnNaB0XSJiqcD7duX2_r2fpdDlXQH4UWoj17E"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
"memo": "saylor:devkit:tools-btc-address",
"reference": "icmkGy2fMkXf1LVmtfnPsiscmiGhvMNit4NDqFhGsJ5",
"session": "eyJhcnRpY2xlSWQiOiJkZXZraXQ6dG9vbHMtYnRjLWFkZHJlc3MiLCJyZWZlcmVuY2UiOiJpY21rR3kyZk1rWGYxTFZtdGZuUHNpc2NtaUdodk1OaXQ0TkRxRmhHc0o1IiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRXM5dk1GcnphQ0VSbUpmckY0SDJGWUQ0S0NvTmtZMTFNY0NlOEJlbndOWUIiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTIzOTk3MzM5Mzd9.Y58Z9cg6k-y4MSkatCI4rO2Nkot7kMg4MB806CBW0Ok"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
},
{
"amount": "91698",
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:devkit:tools-btc-address",
"native": true,
"note": "Native SOL: send lamports with a system transfer, not an SPL transfer. Price is quoted live and this quote expires in 120s.",
"quotedLamports": "94535",
"reference": "BXkfvfBgux8vwd187y7wzfALbDsZXv3ZKdy53tbg6ivj",
"session": "eyJhcnRpY2xlSWQiOiJkZXZraXQ6dG9vbHMtYnRjLWFkZHJlc3MiLCJyZWZlcmVuY2UiOiJCWGtmdmZCZ3V4OHZ3ZDE4N3k3d3pmQUxiRHNaWHYzWktkeTUzdGJnNml2aiIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6bnVsbCwibWluQW1vdW50Ijo5MTY5OCwiZXhwIjoxNzkyMzk5NzMzOTM3fQ.g3HYBazx9YtrHL_XqENx9mJycRWx26dbPbns3-EeRJs",
"solUsdPrice": 105.78
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact"
}
],
"description": "Bitcoin address validator - checks base58check and bech32/bech32m checksums, returns network, address type (P2PKH, P2SH, P2WPKH, taproot) and encoding",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"address": "bc1qar0srrr7xfkvy5l643lydnw9re59gtzzwf5mdq"
},
"type": "http"
},
"output": {
"example": {
"address": "bc1qar0srrr7xfkvy5l643lydnw9re59gtzzwf5mdq",
"encoding": "bech32",
"network": "mainnet",
"program_hex": "e8df018c7e326cc253faac7e46cdc51e68542c42",
"reason": null,
"type": "P2WPKH",
"valid": true,
"witness_version": 0
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"address": {
"description": "Bitcoin address to validate",
"type": "string"
}
},
"required": [
"address"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"address": {
"description": "Account or contract address",
"type": "string"
},
"checked_at": {
"description": "Time the check was run (UTC)",
"type": [
"string",
"null"
]
},
"encoding": {
"description": "Encoding used",
"type": [
"string",
"null"
]
},
"network": {
"description": "Network name",
"type": [
"string",
"null"
]
},
"program_hex": {
"description": "Program hex",
"type": [
"string",
"null"
]
},
"reason": {
"type": [
"string",
"null"
]
},
"type": {
"description": "Type or kind",
"type": [
"string",
"null"
]
},
"valid": {
"description": "True when the input passed validation",
"type": "boolean"
},
"witness_version": {
"description": "Witness version",
"type": [
"number",
"null"
]
}
},
"required": [
"address",
"valid"
],
"type": "object"
},
"type": {
"const": "json",
"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/v1791811517/bazaar-icons/bc5e2b3d111ebbef.jpg",
"lastUpdated": "2026-10-19T08:46:53.982Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-19T08:46:53.683Z"
},
"resource": "https://saylorinnovations.com/api/tools/btc-address",
"serviceName": "Saylor Innovations Dev Tools",
"tags": [
"tools",
"btc-address",
"calculator"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Bitcoin address validator - checks base58check and bech32/bech32m checksums, returns network, address type (P2PKH, P2SH, P2WPKH, taproot) and encoding"
}What the leaf hashes
{"body":"554a7def6f378ef94766d9047cc9aa7afa95539003a1f2da8432275682ebe9a5","id":120719,"kind":"listing","method":"baseline/1","observed_us":1793025618520566,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/tools/btc-address","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).
- 0x203b37b566053c88593be2f2802d60304899b73909a65247280c3312912472fc
- 0x5666c3ec7dcd08877a1efe91569543a38e3c692f90a1507a628abe88862ad21d
- 0x6803bca04b70e230e72a81df080812d76a1a648e65bd5287f0ac8ee4951e0577
- 0x7f8751a2852ec1cbc0c9840d9ffd67d7236ca01858562de5a34abc0eba5e2029
- 0xf66e3886b59cf40ff0a6482f753bb82acd0460f5d7c0e803cb5b2a9d98bb0d0d
- 0x8fe90d4b1321c7bdf44060eb63acf8752079be8a01d6413af207e7de823b8888
- 0x70bd389d75e62f5a2d7139b40b2f3bf19783cdee770d17a3ef5261db5cffa049
- 0x466be7f80d65a2040bd6fce25e3bbe93acb24e51c67280b0716a4c8536f5fd29
- 0x0617b6b06e86eb4321bf604df60b41e25d8767019a2c131b5ba8f754609edcb0
- 0x4be42e002361db392d6bc044d985a656aee097e347099c025de6e9dea367ae4e
- 0x057e71ed555693238850b77237df28dd2661cf85c88138365b7e42941201ad01
- 0xfde157310fc8513767b162378ca9ceefb2937c374b7381a8887f7ccba8ab5a80
- 0x9d75d4d3ab6219edefa04be60b32fdd56be7a7672f370a5115f02f7b098ecd27
- 0x9dfd312f3d4937f7cb144cee3987e8516f222932b4ea286605236d73cfa1ed16
- 0xc3a6a3ae44ec0da1848b16d40c45d7aac97a67352eea8df18e0f26edabea8a2f
- 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
- 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae