← The evidence ledger
Evidence row 294446
Observed , by probe.mcp/1.
- Kind
- mcp.tools
- About
- endpoint b39d755b-d00e-4802-9ee5-d17d2a6b0118
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 31f59747c304d80f03f744c7609e497bc816bcc1ab5a6e1028c3f0fadcd9bbf4
- Leaf
- 0x238dce559a20173d1f9adf798439e70ce97186405535f079f85bec04ec42f8c8
What was observed
{
"count": 1,
"tools": [
{
"description": "Verify a POPCORN-WITNESS/2.0 receipt against a caller-computed SHA-256 payload digest, nonce, and independently trusted issuer keys. Send only the digest, never private payload bytes. Caller-supplied keys do not establish issuer identity. This does not prove on-chain settlement, establish current time, or grant authority. Free and read-only.",
"inputSchema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"properties": {
"expected_node_id": {
"type": "string"
},
"expected_nonce": {
"type": "string"
},
"expected_payload_digest": {
"type": "string"
},
"jwks": {
"additionalProperties": {},
"propertyNames": {
"type": "string"
},
"type": "object"
},
"max_clock_accuracy_radius_ms": {
"maximum": 9007199254740991,
"minimum": 0,
"type": "integer"
},
"previous_receipt": {
"additionalProperties": false,
"properties": {
"jwks": {
"additionalProperties": {},
"propertyNames": {
"type": "string"
},
"type": "object"
},
"response": {
"additionalProperties": {},
"propertyNames": {
"type": "string"
},
"type": "object"
},
"verification": {
"additionalProperties": false,
"properties": {
"expected_node_id": {
"type": "string"
},
"expected_nonce": {
"type": "string"
},
"expected_payload_digest": {
"type": "string"
},
"max_clock_accuracy_radius_ms": {
"maximum": 9007199254740991,
"minimum": 0,
"type": "integer"
},
"previous_receipt": {
"additionalProperties": false,
"properties": {
"jwks": {
"additionalProperties": {},
"propertyNames": {
"type": "string"
},
"type": "object"
},
"response": {
"additionalProperties": {},
"propertyNames": {
"type": "string"
},
"type": "object"
},
"verification": {
"additionalProperties": false,
"properties": {
"expected_node_id": {
"type": "string"
},
"expected_nonce": {
"type": "string"
},
"expected_payload_digest": {
"type": "string"
},
"max_clock_accuracy_radius_ms": {
"maximum": 9007199254740991,
"minimum": 0,
"type": "integer"
},
"previous_receipt": {
"additionalProperties": false,
"properties": {
"jwks": {
"additionalProperties": {},
"propertyNames": {
"type": "string"
},
"type": "object"
},
"response": {
"additionalProperties": {},
"propertyNames": {
"type": "string"
},
"type": "object"
},
"verification": {
"additionalProperties": false,
"properties": {
"expected_node_id": {
"type": "string"
},
"expected_nonce": {
"type": "string"
},
"expected_payload_digest": {
"type": "string"
},
"max_clock_accuracy_radius_ms": {
"maximum": 9007199254740991,
"minimum": 0,
"type": "integer"
},
"previous_receipt": {
"additionalProperties": false,
"properties": {
"jwks": {
"additionalProperties": {},
"propertyNames": {
"type": "string"
},
"type": "object"
},
"response": {
"additionalProperties": {},
"propertyNames": {
"type": "string"
},
"type": "object"
},
"verification": {
"additionalProperties": false,
"properties": {
"expected_node_id": {
"type": "string"
},
"expected_nonce": {
"type": "string"
},
"expected_payload_digest": {
"type": "string"
},
"max_clock_accuracy_radius_ms": {
"maximum": 9007199254740991,
"minimum": 0,
"type": "integer"
},
"previous_receipt": {
"additionalProperties": false,
"properties": {
"jwks": {
"additionalProperties": {},
"propertyNames": {
"type": "string"
},
"type": "object"
},
"response": {
"additionalProperties": {},
"propertyNames": {
"type": "string"
},
"type": "object"
},
"verification": {
"additionalProperties": false,
"properties": {
"expected_node_id": {
"type": "string"
},
"expected_nonce": {
"type": "string"
},
"expected_payload_digest": {
"type": "string"
},
"max_clock_accuracy_radius_ms": {
"maximum": 9007199254740991,
"minimum": 0,
"type": "integer"
},
"previous_receipt": {
"additionalProperties": false,
"properties": {
"jwks": {
"additionalProperties": {},
"propertyNames": {
"type": "string"
},
"type": "object"
},
"response": {
"additionalProperties": {},
"propertyNames": {
"type": "string"
},
"type": "object"
},
"verification": {
"additionalProperties": false,
"properties": {
"expected_node_id": {
"type": "string"
},
"expected_nonce": {
"type": "string"
},
"expected_payload_digest": {
"type": "string"
},
"max_clock_accuracy_radius_ms": {
"maximum": 9007199254740991,
"minimum": 0,
"type": "integer"
},
"previous_receipt": {
"additionalProperties": false,
"properties": {
"jwks": {
"additionalProperties": {},
"propertyNames": {
"type": "string"
},
"type": "object"
},
"response": {
"additionalProperties": {},
"propertyNames": {
"type": "string"
},
"type": "object"
},
"verification": {
"additionalProperties": false,
"properties": {
"expected_node_id": {
"type": "string"
},
"expected_nonce": {
"type": "string"
},
"expected_payload_digest": {
"type": "string"
},
"max_clock_accuracy_radius_ms": {
"maximum": 9007199254740991,
"minimum": 0,
"type": "integer"
},
"previous_receipt": {
"additionalProperties": false,
"properties": {
"jwks": {
"additionalProperties": {},
"propertyNames": {
"type": "string"
},
"type": "object"
},
"response": {
"additionalProperties": {},
"propertyNames": {
"type": "string"
},
"type": "object"
},
"verification": {
"additionalProperties": false,
"properties": {
"expected_node_id": {
"type": "string"
},
"expected_nonce": {
"type": "string"
},
"expected_payload_digest": {
"type": "string"
},
"max_clock_accuracy_radius_ms": {
"maximum": 9007199254740991,
"minimum": 0,
"type": "integer"
}
},
"required": [
"expected_nonce",
"expected_payload_digest"
],
"type": "object"
}
},
"required": [
"response",
"jwks",
"verification"
],
"type": "object"
}
},
"required": [
"expected_nonce",
"expected_payload_digest"
],
"type": "object"
}
},
"required": [
"response",
"jwks",
"verification"
],
"type": "object"
}
},
"required": [
"expected_nonce",
"expected_payload_digest"
],
"type": "object"
}
},
"required": [
"response",
"jwks",
"verification"
],
"type": "object"
}
},
"required": [
"expected_nonce",
"expected_payload_digest"
],
"type": "object"
}
},
"required": [
"response",
"jwks",
"verification"
],
"type": "object"
}
},
"required": [
"expected_nonce",
"expected_payload_digest"
],
"type": "object"
}
},
"required": [
"response",
"jwks",
"verification"
],
"type": "object"
}
},
"required": [
"expected_nonce",
"expected_payload_digest"
],
"type": "object"
}
},
"required": [
"response",
"jwks",
"verification"
],
"type": "object"
}
},
"required": [
"expected_nonce",
"expected_payload_digest"
],
"type": "object"
}
},
"required": [
"response",
"jwks",
"verification"
],
"type": "object"
}
},
"required": [
"expected_nonce",
"expected_payload_digest"
],
"type": "object"
}
},
"required": [
"response",
"jwks",
"verification"
],
"type": "object"
},
"response": {
"additionalProperties": {},
"propertyNames": {
"type": "string"
},
"type": "object"
}
},
"required": [
"response",
"jwks",
"expected_nonce",
"expected_payload_digest"
],
"type": "object"
},
"name": "popcorn_verify_v2"
}
]
}What the leaf hashes
{"body":"31f59747c304d80f03f744c7609e497bc816bcc1ab5a6e1028c3f0fadcd9bbf4","id":294446,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793050108340602,"prev":null,"subject":"b39d755b-d00e-4802-9ee5-d17d2a6b0118","subject_kind":"endpoint"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).
- 0x238dbc1cb4c12d67fc06afe3cf1beb1d99ab45855d210241c67801106e539151
- 0x24950dde75a7a77203b897528c1b187da29021746dafd6890d0a5bc851694c5a
- 0x533346f0fff5a7747dcc8b860a4bc0544a0562683bf0e9460531eb1ddc9bd3f8
- 0x4336eda9f4f0a652070b03e7e3793be417dc50851cda497b1dc1e90fffae81d4
- 0xdcf05152f20ae2cdddfbde434e430473c988b0a9a7097a86d3e448443ec2f993
- 0xe4d9f808d307a8d088515995749b41db2fcc2ddd8d4456361c65bc193d6854e0
- 0x1c482fbc67ee02e3fe357aa0b00c01f90c2ea944908363456ec07093203d730b
- 0x08786daf183e4e1340faec042b8775e2195bd236a3ca0c7a9f52b37a9aa6c7ca
- 0xaad5f368abcc474c3436ca384b60b683f25552912fbcd4133da43505e2657a7f
- 0x704493bae418bde4fd104ba47dec27e1d8d9ddc2c72e86c9507cb5b9906a220b
- 0xafd0058f5459c39aa93b8bea4d66dcde1a2763032ab59f971a1c12b8652db90b
- 0xac5b705d705b0f1bc42cf2ad1a7f1f197ea96178ce0704432cbb5d556e8671a4
- 0x9d75d4d3ab6219edefa04be60b32fdd56be7a7672f370a5115f02f7b098ecd27
- 0x9dfd312f3d4937f7cb144cee3987e8516f222932b4ea286605236d73cfa1ed16
- 0xc3a6a3ae44ec0da1848b16d40c45d7aac97a67352eea8df18e0f26edabea8a2f
- 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
- 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae