{"id":123854,"recorded_at":"2026-10-26T14:40:23.789802Z","observed_at":"2026-10-26T14:40:23.789755Z","subject_kind":"source_record","subject":"x402_bazaar:https://verity.basechainlabs.com/api/verify","kind":"listing","method":"baseline/1","body":{"endpoints":[["x402","https://verity.basechainlabs.com/api/verify"]],"name":"verity.basechainlabs.com/api/verify","owner_address":"0x400d65bb174c546ed92f5d61ce21fbde96b8bacc","raw":{"accepts":[{"amount":"100000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"maxTimeoutSeconds":600,"network":"eip155:8453","payTo":"0x400d65bb174c546ed92f5d61ce21fbde96b8bacc","scheme":"exact"}],"description":"Fact-checking with persistent memory — VERITY remembers prior claims your agent has checked and skips repeat lookups, saving tokens across sessions. Returns CURRENT/OUTDATED/DISPUTED/UNVERIFIABLE verdicts with confidence score, sources, and what changed. 0.10 USDC.","extensions":{"bazaar":{"iconUrl":"https://verity.basechainlabs.com/verity-logo.jpg","info":{"input":{"body":{"caller_id":"my-agent-id","query":"Verify: Is GPT-4 still the most capable OpenAI model?"},"bodyType":"json","method":"POST","type":"http"},"output":{"example":{"artifact":{"index":0,"parts":[{"text":"{\"verdict\":\"OUTDATED\",\"confidence\":91,\"summary\":\"GPT-4 has been superseded by GPT-4o and o3 models as of 2025.\",\"what_changed\":\"OpenAI released GPT-4o in May 2024 and o3 in late 2024, both outperforming GPT-4.\",\"sources\":[{\"url\":\"https://openai.com/blog/...\",\"title\":\"...\",\"published_date\":\"2025-01\",\"supports\":\"CONTRADICTS\"}]}","type":"text"}]},"status":"completed"},"type":"json"}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"properties":{"caller_id":{"description":"Optional agent or user ID for persistent memory.","type":"string"},"query":{"description":"The claim, URL, or content to verify. E.g. 'Is OpenAI still valued at $157B?' or 'https://example.com/article'","type":"string"}},"required":["query"]},"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":{"properties":{"artifact":{"type":"object"},"status":{"type":"string"},"tokens":{"type":"number"}},"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"serviceName":"VERITY — Claim Verification","tags":["fact-check","verification","data-freshness","hallucination","ai-verification"]}},"lastUpdated":"2026-10-22T18:52:14.844Z","quality":{"l30DaysTotalCalls":9,"l30DaysUniquePayers":1,"lastCalledAt":"2026-10-22T18:52:14.604Z"},"resource":"https://verity.basechainlabs.com/api/verify","type":"http","x402Version":2},"source":"x402_bazaar","summary":"Fact-checking with persistent memory — VERITY remembers prior claims your agent has checked and skips repeat lookups, saving tokens across sessions. Returns CURRENT/OUTDATED/DISPUTED/UNVERIFIABLE verdicts with confidence score, sources, and what changed. 0.10 USDC."},"body_sha256":"03b3295feebe040db2ff96e815e14e7e4725d2b77be61d4ca9dc31f1a2b04c17","prev_id":null,"leaf":"0xa0d8001be1e813a7f23a96dfa6639bb6ecd84df72d1fdd34d5153931ae475b92","leaf_text":"{\"body\":\"03b3295feebe040db2ff96e815e14e7e4725d2b77be61d4ca9dc31f1a2b04c17\",\"id\":123854,\"kind\":\"listing\",\"method\":\"baseline/1\",\"observed_us\":1793025623789755,\"prev\":null,\"subject\":\"x402_bazaar:https://verity.basechainlabs.com/api/verify\",\"subject_kind\":\"source_record\"}","day":{"day":"2026-10-26","leaves":296695,"root":"0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8","chained":"0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a","anchor_chain":"eip155:5042002","anchor_tx":"0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae","anchor_block":69251483},"proof":["0xa0d810537f837bf5a3fc2eb0520180d84924473fc629d8b50cad6e39a21d5ddf","0x1c4d0b1becd816af4dd309630fb4c212c851b7024ca00639817de91c3fe758de","0x9d899a1b8c7a326933db52bf8682a4d964e5a0d527cbb772cb14fda8f04cec8b","0x62fa3890371756573b196038122967728569298d38794796290dd87f9ef7f4a5","0xf5dad7d59dcc00d9c0cfb5985466bea3716836873e158bfe543c2e187a55a885","0xfd72b85094f9d3f588db9383f67595b1c98674c2e40657c1bd7b4ecd6fe781a6","0x78bb66f8a6df4d5cf64a515c7e107f8bfe8cd13dafb9c30ada28df3d9d31c409","0x51df6236b7cdcdae2b83e1f403b6b31ad753cbf16b6b0f07df2d49788fe551d0","0x656efeb7d96e50aeb0381af9e9cce10bc5892a86ec74eee8952a09201c5f9ffd","0x848cf5e604d5f0c62cc02d3abe512164430820fceefd529d003cbca06e431809","0x6e2c6fb1ec16c0d8a0fa917725bdfc512e7ed9f39e77d64f0a911d30e68a27de","0x95576cc3dd18642c859f679cefa1cf80bfc6c690b065916c3585b14e8ef4b1b3","0xf8d3e004d9a208d2c5e82ab676956d80f8a3c78387c61dad15a3a8269efee0d8","0x6713795704ddd9c528d421fadd9cc96b0200a4ddbba84f88e718d4968dde888b","0x62a900133713919f4eed33d8336876b7a6d538233b8a4f3ed03b29aa44f5bad0","0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f","0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9","0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f","0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a"]}