{"api":"v1","generated_at":"2026-09-16T00:56:45.449Z","licence":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/","attribution":"TOLL, with a link to the page cited"},"page":"https://tollindex.com/e/fractalai-net-co-api-x402-seal-c37326","pinned_page":"https://tollindex.com/e/fractalai-net-co-api-x402-seal-c37326/at/2026-09-15T21-20Z","pinned":false,"method":"https://tollindex.com/ledger/method","snapshot_at":"2026-09-15T21:20:12.737Z","snapshot_stamp":"2026-09-15T21-20Z","endpoint":{"slug":"fractalai-net-co-api-x402-seal-c37326","canonical_url":"https://fractalai.net.co/api/x402/seal","resource":"https://fractalai.net.co/api/x402/seal","http_method":"POST","type":"http","x402_version":2,"registries":["cdp"],"primary_registry":"cdp","curated_by_coinbase":false,"description":"Pay-per-Seal: one post-quantum (Dilithium-2) provenance seal + a self-contained ML-DSA-65/Dilithium-3 (NIST FIPS 204) signature — drand-timestamped and on-chain-anchored — over a dataset/training/content hash. EU AI Act (Art. 10/50/53) provenance for autonomous agents, x402-native.","service_name":"FractalAI Provenance","declared_category":null,"declared_tags":["provenance","dataset","timestamp","c2pa","drand"],"route_template":null,"registry_updated":"2026-09-15T15:22:37.029Z"},"derived":{"note":"fields no registry supplies; TOLL derives them and marks them derived on the page","title":"seal","category":"media","first_observed_by_toll":"2026-09-15T16:57:44.360Z","last_observed_by_toll":"2026-09-15T21:20:12.737Z","observation_began":"2026-09-10"},"presence":{"listed_now":true,"first_absent_at":null,"delisting_confirmed_at":null,"events":[{"registry":"cdp","at":"2026-09-15T16:57:44.360Z","event":"listed"}]},"accepts":[{"registry":"cdp","ordinal":0,"network":"eip155:8453","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USD Coin","symbol":"USDC","decimals":6,"amount_display":"0.05 USDC","amount_units":0.05,"decimals_known":true,"pay_to":"0xC13789e82661635d9Cea38a53A0390CF9939ef4f","scheme":"exact"},{"registry":"cdp","ordinal":1,"network":"eip155:8453","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","symbol":"USDC","decimals":6,"amount_display":"0.05 USDC","amount_units":0.05,"decimals_known":true,"pay_to":"0xC13789e82661635d9Cea38a53A0390CF9939ef4f","scheme":"exact"}],"counters":{"observed_at":"2026-09-15T21:20:12.737Z","calls_30d":1,"unique_payers_30d":1,"last_called_at":"2026-09-15T15:22:36.666Z"},"validation":{"latest":{"observed_at":"2026-09-15T17:01:42.814Z","state":"pass","failed_checks":[],"endpoint_http_status":402,"run_id":"new-2026-09-15T17-01-37-864Z"},"uptime":[{"days":7,"observed":1,"passed":1,"ratio":1},{"days":30,"observed":1,"passed":1,"ratio":1},{"days":90,"observed":1,"passed":1,"ratio":1}],"history_90d":[{"observed_at":"2026-09-15T17:01:42.814Z","state":"pass","failed_checks":[],"run_id":"new-2026-09-15T17-01-37-864Z","state_changed":true}]},"seller":{"wallet":"0xC13789e82661635d9Cea38a53A0390CF9939ef4f","page":"https://tollindex.com/seller/0xC13789e82661635d9Cea38a53A0390CF9939ef4f","endpoints":8,"hosts":1},"reports":0,"registry_record":{"cdp":[{"tags":["provenance","dataset","timestamp","c2pa","drand"],"type":"http","accepts":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2","decimals":6,"assetTransferMethod":"eip3009"},"payTo":"0xC13789e82661635d9Cea38a53A0390CF9939ef4f","amount":"50000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300},{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USDC","decimals":6,"settlement":"txHash","instructions":"Facilitator-less: send exactly `amount` USDC to `payTo` on Base, then retry with PAYMENT-SIGNATURE = base64(JSON({ txHash })) (X-PAYMENT also accepted)."},"payTo":"0xC13789e82661635d9Cea38a53A0390CF9939ef4f","amount":"50000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300}],"quality":{"lastCalledAt":"2026-09-15T15:22:36.666Z","l30DaysTotalCalls":1,"l30DaysUniquePayers":1},"resource":"https://fractalai.net.co/api/x402/seal","extensions":{"bazaar":{"body":{"kind":"dataset","content_hash":"sha256hex"},"info":{"input":{"body":{"kind":"dataset","content_hash":"sha256hex"},"type":"http","method":"POST","bodyType":"json"},"output":{"type":"json","example":{"seal_id":"…","permalink":"https://fractalai.net.co/attestation/0x…","attestation_hash":"0x…","served_signature":{"algorithm":"ml-dsa-65"}}}},"tags":["provenance","dataset","timestamp","c2pa","drand"],"type":"http","method":"POST","output":{"type":"json","schema":{"type":"object","required":["seal"],"properties":{"seal":{"type":"object","description":"The re-verifiable provenance seal: { version, content_hash, drand_round, drand_randomness, sealed_at, algorithm, signature (base64 Dilithium-2), public_key }."},"anchor":{"type":"object","description":"On-chain anchor receipt (attestation_hash, block_number, permalink) or a note if anchoring was unavailable. Advisory — the seal is valid without it. The anchor is Dilithium-2 (ML-DSA-44), bound to the node."},"payment":{"type":"object","description":"Settlement receipt (scheme, network, asset, txHash, payer, settled)."},"verify_drand_at":{"type":"string","description":"URL to independently re-check the drand round on drand.sh."},"served_signature":{"type":"object","description":"Self-contained, OFFLINE-verifiable Dilithium-3 / ML-DSA-65 (NIST FIPS 204) signature over the canonical seal bytes: { algorithm: \"ml-dsa-65\", algorithm_label, digest (sha256 hex signed), signature (base64 ML-DSA-65, 3309 bytes), public_key (base64, 1952 bytes), signed_message (the EXACT UTF-8 bytes signed = \"FRACTALAI-x402-served-v1\\nx402-seal\\n<digest>\", route-separated, 3 lines) }. Additive — verify with ml_dsa65.verify(b64(signature), utf8(signed_message), b64(public_key)); pass signed_message verbatim, do not reconstruct it."}}},"example":{"seal_id":"…","permalink":"https://fractalai.net.co/attestation/0x…","attestation_hash":"0x…","served_signature":{"algorithm":"ml-dsa-65"}}},"schema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object"},"type":{"type":"string","const":"http"},"method":{"enum":["POST","PUT","PATCH"],"type":"string"},"headers":{"type":"object","additionalProperties":{"type":"string"}},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"queryParams":{"type":"object","additionalProperties":{"type":"string"}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"bodyType":"json","route_key":"POST /api/x402/seal","description":"Pay-per-Seal: one post-quantum (Dilithium-2) provenance seal + a self-contained ML-DSA-65/Dilithium-3 (NIST FIPS 204) signature — drand-timestamped and on-chain-anchored — over a dataset/training/content hash. EU AI Act (Art. 10/50/53) provenance for autonomous agents, x402-native.","serviceName":"FractalAI Provenance"}},"description":"Pay-per-Seal: one post-quantum (Dilithium-2) provenance seal + a self-contained ML-DSA-65/Dilithium-3 (NIST FIPS 204) signature — drand-timestamped and on-chain-anchored — over a dataset/training/content hash. EU AI Act (Art. 10/50/53) provenance for autonomous agents, x402-native.","lastUpdated":"2026-09-15T15:22:37.029Z","serviceName":"FractalAI Provenance","x402Version":2}]}}