← The evidence ledger
Evidence row 73233
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://datoka-agent.bhazarstudio.workers.dev/v1/operations/issue_agent_receipt
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- fea1dc644b921fa62663efbe9f98a6a0877c7607c97632d0c3d0bbd885588147
- Leaf
- 0x511f19e4f771152fce07513b442df12561dee6b3c6e3578ee91f22a3cab06ab6
What was observed
{
"endpoints": [
[
"x402",
"https://datoka-agent.bhazarstudio.workers.dev/v1/operations/issue_agent_receipt"
]
],
"name": "datoka-agent.bhazarstudio.workers.dev/v1/operations/issue_agent_receipt",
"owner_address": "0x4a7a972f84e2a64b3b9b64ac1383df5c413c0e59",
"raw": {
"accepts": [
{
"amount": "2000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 60,
"network": "eip155:8453",
"payTo": "0x4a7A972F84E2A64b3B9B64AC1383Df5c413c0E59",
"scheme": "exact"
}
],
"description": "Datoka Agent: one signed execution declaration receipt. Retry with the same event, idempotency key and payment.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"event": {
"agentId": "demo-agent",
"completedAt": "2026-09-29T13:36:18.844Z",
"inputHash": {
"algorithm": "sha256",
"digest": "206f7b5543e6f2ef39bf334988fd7097b725caeed16588cd9d785480f2f0f8f6"
},
"outcome": "success",
"outputHash": {
"algorithm": "sha256",
"digest": "4403134882233d347dfa35d23b98c42a4442478ce521631ef566d21df77e2a52"
},
"runId": "demo-run",
"startedAt": "2026-09-29T13:36:18.844Z",
"stepId": "addition-001",
"tool": "number.add",
"version": "datoka.agent.execution.v1"
},
"idempotencyKey": "replace-with-a-unique-key-before-buying"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"event": {
"agentId": "demo-agent",
"completedAt": "2026-09-29T13:36:18.844Z",
"inputHash": {
"algorithm": "sha256",
"digest": "206f7b5543e6f2ef39bf334988fd7097b725caeed16588cd9d785480f2f0f8f6"
},
"outcome": "success",
"outputHash": {
"algorithm": "sha256",
"digest": "4403134882233d347dfa35d23b98c42a4442478ce521631ef566d21df77e2a52"
},
"runId": "demo-run",
"startedAt": "2026-09-29T13:36:18.844Z",
"stepId": "addition-001",
"tool": "number.add",
"version": "datoka.agent.execution.v1"
},
"receipt": {
"algorithm": "Ed25519",
"body": {
"id": "48fe5c2f-012c-4e52-a6b0-74ca3c487c98",
"issuedAt": "2026-09-29T13:36:19.022Z",
"issuer": "datoka.agent.test",
"keyId": "test-key-1",
"previous": null,
"request": {
"chain": "run:5bbe50afe842854e909b091a6be364f4b16f541a8a6c1195e777d1e0f58d6867",
"eventType": "datoka.agent.execution",
"scope": "tenant-a",
"subject": {
"algorithm": "sha256",
"digest": "5ad65af6a67c968f55f77ed7b8d6bf4c5c65167ca3c81fc4811ee61e4fdc3559",
"encoding": "jcs"
}
},
"sequence": 1,
"version": "datoka.receipt.v1"
},
"signature": "QFlVdquYWg4FkGtI02U5V6QKLRiKWs-ACsL0k3dsZXIVOOr_gn8C7Mq0XccRbvVEXMt3HnO0Cth0zsHqXYcQBw"
}
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"properties": {
"event": {
"additionalProperties": false,
"description": "Commitment-only declaration of one execution step.",
"properties": {
"agentId": {
"description": "Identifier of the declaring agent, not an independently verified identity.",
"pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$",
"type": "string"
},
"completedAt": {
"description": "Declared completion in UTC with milliseconds, at or after start.",
"format": "date-time",
"pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d\\.\\d{3}(?:Z))$",
"type": "string"
},
"inputHash": {
"additionalProperties": false,
"description": "SHA-256 of the exact input bytes, computed locally. Never send raw input.",
"properties": {
"algorithm": {
"const": "sha256",
"description": "Hash algorithm.",
"type": "string"
},
"digest": {
"description": "64 lowercase hexadecimal characters; SHA-256 of exact bytes.",
"pattern": "^[a-f0-9]{64}$",
"type": "string"
}
},
"required": [
"algorithm",
"digest"
],
"type": "object"
},
"outcome": {
"description": "Outcome declared by the caller; Datoka does not observe execution.",
"enum": [
"success",
"error"
],
"type": "string"
},
"outputHash": {
"additionalProperties": false,
"description": "SHA-256 of exact output bytes, computed locally. Never send raw output.",
"properties": {
"algorithm": {
"const": "sha256",
"description": "Hash algorithm.",
"type": "string"
},
"digest": {
"description": "64 lowercase hexadecimal characters; SHA-256 of exact bytes.",
"pattern": "^[a-f0-9]{64}$",
"type": "string"
}
},
"required": [
"algorithm",
"digest"
],
"type": "object"
},
"runId": {
"description": "Stable identifier for this execution run.",
"pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$",
"type": "string"
},
"startedAt": {
"description": "Declared start time in UTC, with milliseconds.",
"format": "date-time",
"pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d\\.\\d{3}(?:Z))$",
"type": "string"
},
"stepId": {
"description": "Stable identifier of the step within the run.",
"pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$",
"type": "string"
},
"tool": {
"description": "Tool or operation identifier declared by the caller.",
"pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$",
"type": "string"
},
"version": {
"const": "datoka.agent.execution.v1",
"description": "Declaration format version; preserve this literal.",
"type": "string"
}
},
"required": [
"version",
"agentId",
"runId",
"stepId",
"tool",
"outcome",
"startedAt",
"completedAt",
"inputHash",
"outputHash"
],
"type": "object"
},
"idempotencyKey": {
"description": "Persist this unique key before purchase. Reuse unchanged with the same input and payment authorization after interruption.",
"pattern": "^[\\x21-\\x7e]{16,200}$",
"type": "string"
}
},
"required": [
"event",
"idempotencyKey"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"properties": {
"event": {
"additionalProperties": false,
"description": "Commitment-only declaration of one execution step.",
"properties": {
"agentId": {
"description": "Identifier of the declaring agent, not an independently verified identity.",
"pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$",
"type": "string"
},
"completedAt": {
"description": "Declared completion in UTC with milliseconds, at or after start.",
"format": "date-time",
"pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d\\.\\d{3}(?:Z))$",
"type": "string"
},
"inputHash": {
"additionalProperties": false,
"description": "SHA-256 of the exact input bytes, computed locally. Never send raw input.",
"properties": {
"algorithm": {
"const": "sha256",
"description": "Hash algorithm.",
"type": "string"
},
"digest": {
"description": "64 lowercase hexadecimal characters; SHA-256 of exact bytes.",
"pattern": "^[a-f0-9]{64}$",
"type": "string"
}
},
"required": [
"algorithm",
"digest"
],
"type": "object"
},
"outcome": {
"description": "Outcome declared by the caller; Datoka does not observe execution.",
"enum": [
"success",
"error"
],
"type": "string"
},
"outputHash": {
"additionalProperties": false,
"description": "SHA-256 of exact output bytes, computed locally. Never send raw output.",
"properties": {
"algorithm": {
"const": "sha256",
"description": "Hash algorithm.",
"type": "string"
},
"digest": {
"description": "64 lowercase hexadecimal characters; SHA-256 of exact bytes.",
"pattern": "^[a-f0-9]{64}$",
"type": "string"
}
},
"required": [
"algorithm",
"digest"
],
"type": "object"
},
"runId": {
"description": "Stable identifier for this execution run.",
"pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$",
"type": "string"
},
"startedAt": {
"description": "Declared start time in UTC, with milliseconds.",
"format": "date-time",
"pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d\\.\\d{3}(?:Z))$",
"type": "string"
},
"stepId": {
"description": "Stable identifier of the step within the run.",
"pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$",
"type": "string"
},
"tool": {
"description": "Tool or operation identifier declared by the caller.",
"pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$",
"type": "string"
},
"version": {
"const": "datoka.agent.execution.v1",
"description": "Declaration format version; preserve this literal.",
"type": "string"
}
},
"required": [
"version",
"agentId",
"runId",
"stepId",
"tool",
"outcome",
"startedAt",
"completedAt",
"inputHash",
"outputHash"
],
"type": "object"
},
"receipt": {
"additionalProperties": false,
"description": "Signed Datoka receipt; verify against independently trusted keys.",
"properties": {
"algorithm": {
"const": "Ed25519",
"type": "string"
},
"body": {
"additionalProperties": false,
"properties": {
"id": {
"format": "uuid",
"pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
"type": "string"
},
"issuedAt": {
"format": "date-time",
"pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d\\.\\d{3}(?:Z))$",
"type": "string"
},
"issuer": {
"pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$",
"type": "string"
},
"keyId": {
"pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$",
"type": "string"
},
"previous": {
"anyOf": [
{
"pattern": "^[a-f0-9]{64}$",
"type": "string"
},
{
"type": "null"
}
]
},
"request": {
"additionalProperties": false,
"properties": {
"chain": {
"pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$",
"type": "string"
},
"eventType": {
"pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$",
"type": "string"
},
"scope": {
"pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$",
"type": "string"
},
"subject": {
"additionalProperties": false,
"properties": {
"algorithm": {
"const": "sha256",
"type": "string"
},
"digest": {
"pattern": "^[a-f0-9]{64}$",
"type": "string"
},
"encoding": {
"enum": [
"jcs",
"bytes"
],
"type": "string"
}
},
"required": [
"algorithm",
"encoding",
"digest"
],
"type": "object"
}
},
"required": [
"scope",
"chain",
"eventType",
"subject"
],
"type": "object"
},
"sequence": {
"exclusiveMinimum": 0,
"maximum": 9007199254740991,
"type": "integer"
},
"version": {
"const": "datoka.receipt.v1",
"type": "string"
}
},
"required": [
"version",
"id",
"issuer",
"keyId",
"issuedAt",
"request",
"sequence",
"previous"
],
"type": "object"
},
"signature": {
"pattern": "^[A-Za-z0-9_-]{86}$",
"type": "string"
}
},
"required": [
"body",
"algorithm",
"signature"
],
"type": "object"
}
},
"required": [
"event",
"receipt"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-25T18:58:15.939Z",
"quality": {
"l30DaysTotalCalls": 12,
"l30DaysUniquePayers": 9,
"lastCalledAt": "2026-10-25T18:58:15.481Z"
},
"resource": "https://datoka-agent.bhazarstudio.workers.dev/v1/operations/issue_agent_receipt",
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Datoka Agent: one signed execution declaration receipt. Retry with the same event, idempotency key and payment."
}What the leaf hashes
{"body":"fea1dc644b921fa62663efbe9f98a6a0877c7607c97632d0c3d0bbd885588147","id":73233,"kind":"listing","method":"baseline/1","observed_us":1793025487197939,"prev":null,"subject":"x402_bazaar:https://datoka-agent.bhazarstudio.workers.dev/v1/operations/issue_agent_receipt","subject_kind":"source_record"}Proof
Its day has not closed yet. A day closes ten minutes after midnight UTC; the proof appears here then.