{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:JH3AXLTRTBL7HXE4MLBPYHGF6Q","short_pith_number":"pith:JH3AXLTR","canonical_record":{"source":{"id":"2605.19850","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-05-19T13:43:28Z","cross_cats_sorted":["astro-ph.IM","physics.space-ph"],"title_canon_sha256":"9bf03af2a77d87212685908df2f6b1249e2f3cfdb403f11e02df49acad8d81eb","abstract_canon_sha256":"cc2b0d662c7a1e0d2ef284d2a4cdccf9631426c0a1fbfde023d8ce9bd38269ee"},"schema_version":"1.0"},"canonical_sha256":"49f60bae719857f3dc9c62c2fc1cc5f43b94484e8e5db6e5ca3658b2ec7dcf16","source":{"kind":"arxiv","id":"2605.19850","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.19850","created_at":"2026-05-20T01:06:17Z"},{"alias_kind":"arxiv_version","alias_value":"2605.19850v1","created_at":"2026-05-20T01:06:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.19850","created_at":"2026-05-20T01:06:17Z"},{"alias_kind":"pith_short_12","alias_value":"JH3AXLTRTBL7","created_at":"2026-05-20T01:06:17Z"},{"alias_kind":"pith_short_16","alias_value":"JH3AXLTRTBL7HXE4","created_at":"2026-05-20T01:06:17Z"},{"alias_kind":"pith_short_8","alias_value":"JH3AXLTR","created_at":"2026-05-20T01:06:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:JH3AXLTRTBL7HXE4MLBPYHGF6Q","target":"record","payload":{"canonical_record":{"source":{"id":"2605.19850","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-05-19T13:43:28Z","cross_cats_sorted":["astro-ph.IM","physics.space-ph"],"title_canon_sha256":"9bf03af2a77d87212685908df2f6b1249e2f3cfdb403f11e02df49acad8d81eb","abstract_canon_sha256":"cc2b0d662c7a1e0d2ef284d2a4cdccf9631426c0a1fbfde023d8ce9bd38269ee"},"schema_version":"1.0"},"canonical_sha256":"49f60bae719857f3dc9c62c2fc1cc5f43b94484e8e5db6e5ca3658b2ec7dcf16","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-20T01:06:17.581793Z","signature_b64":"M+A52nrvMPbI0JxXnCn6rpooZXDMcS2Q3ab6H+nDBIURWRwTHGvnqFP5PX+wzx0fnJWKc7sS6rEQ1+l6Si/RDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"49f60bae719857f3dc9c62c2fc1cc5f43b94484e8e5db6e5ca3658b2ec7dcf16","last_reissued_at":"2026-05-20T01:06:17.581006Z","signature_status":"signed_v1","first_computed_at":"2026-05-20T01:06:17.581006Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.19850","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-20T01:06:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BGfYIEZ3WOHXlfjY2bvAfXOftSLJYow7svP5EWqad6NV8792z9bvp8ehyEtEKA0W6PUXZlN6IlYhWLdWMD4KDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T09:53:54.707414Z"},"content_sha256":"5daba1827090aeaffd08b8070bdce6b8821364d2f9ac2857ff21e2c6ee054ed5","schema_version":"1.0","event_id":"sha256:5daba1827090aeaffd08b8070bdce6b8821364d2f9ac2857ff21e2c6ee054ed5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:JH3AXLTRTBL7HXE4MLBPYHGF6Q","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"How long can you trust a Starlink TLE? An empirical comparison of SGP4 and high-fidelity propagation against operator-updated truth across a megaconstellation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.IM","physics.space-ph"],"primary_cat":"astro-ph.EP","authors_text":"Dimitrije Jankovic","submitted_at":"2026-05-19T13:43:28Z","abstract_excerpt":"We characterise position-error behaviour of Two-Line Element (TLE) propagation against operator-updated truth on Starlink, sweeping 24,641 next-TLE-truth pairs across 501 satellites stratified by altitude shell (540, 550, 560 km) and platform generation (v1.0, v1.5, v2-mini) over April 2026. Each pair is propagated with SGP4 and GMAT at high fidelity (EGM2008 $70\\times70$, NRLMSISE-00 drag, Sun and Moon third-body gravity, conical-shadow SRP), then compared against the operator's next TLE as proxy truth. Three findings: First, position error follows a per-cell power law $\\lVert\\Delta\\mathbf{r}"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.19850","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.19850/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-20T01:06:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tKD1vPVRsOlxKkCmlOyUIlzr7XXSkOTmMtKsUc0PRmxskvnvQz9A5ac1gOCZUqIYMljudpk5MO7klvkhMCySAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T09:53:54.707920Z"},"content_sha256":"43f5e8eadbbe227366c97216328982201d1cfd9ff3fdc13261b94a60aa1ce84c","schema_version":"1.0","event_id":"sha256:43f5e8eadbbe227366c97216328982201d1cfd9ff3fdc13261b94a60aa1ce84c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JH3AXLTRTBL7HXE4MLBPYHGF6Q/bundle.json","state_url":"https://pith.science/pith/JH3AXLTRTBL7HXE4MLBPYHGF6Q/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JH3AXLTRTBL7HXE4MLBPYHGF6Q/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-22T09:53:54Z","links":{"resolver":"https://pith.science/pith/JH3AXLTRTBL7HXE4MLBPYHGF6Q","bundle":"https://pith.science/pith/JH3AXLTRTBL7HXE4MLBPYHGF6Q/bundle.json","state":"https://pith.science/pith/JH3AXLTRTBL7HXE4MLBPYHGF6Q/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JH3AXLTRTBL7HXE4MLBPYHGF6Q/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:JH3AXLTRTBL7HXE4MLBPYHGF6Q","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"cc2b0d662c7a1e0d2ef284d2a4cdccf9631426c0a1fbfde023d8ce9bd38269ee","cross_cats_sorted":["astro-ph.IM","physics.space-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-05-19T13:43:28Z","title_canon_sha256":"9bf03af2a77d87212685908df2f6b1249e2f3cfdb403f11e02df49acad8d81eb"},"schema_version":"1.0","source":{"id":"2605.19850","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.19850","created_at":"2026-05-20T01:06:17Z"},{"alias_kind":"arxiv_version","alias_value":"2605.19850v1","created_at":"2026-05-20T01:06:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.19850","created_at":"2026-05-20T01:06:17Z"},{"alias_kind":"pith_short_12","alias_value":"JH3AXLTRTBL7","created_at":"2026-05-20T01:06:17Z"},{"alias_kind":"pith_short_16","alias_value":"JH3AXLTRTBL7HXE4","created_at":"2026-05-20T01:06:17Z"},{"alias_kind":"pith_short_8","alias_value":"JH3AXLTR","created_at":"2026-05-20T01:06:17Z"}],"graph_snapshots":[{"event_id":"sha256:43f5e8eadbbe227366c97216328982201d1cfd9ff3fdc13261b94a60aa1ce84c","target":"graph","created_at":"2026-05-20T01:06:17Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2605.19850/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We characterise position-error behaviour of Two-Line Element (TLE) propagation against operator-updated truth on Starlink, sweeping 24,641 next-TLE-truth pairs across 501 satellites stratified by altitude shell (540, 550, 560 km) and platform generation (v1.0, v1.5, v2-mini) over April 2026. Each pair is propagated with SGP4 and GMAT at high fidelity (EGM2008 $70\\times70$, NRLMSISE-00 drag, Sun and Moon third-body gravity, conical-shadow SRP), then compared against the operator's next TLE as proxy truth. Three findings: First, position error follows a per-cell power law $\\lVert\\Delta\\mathbf{r}","authors_text":"Dimitrije Jankovic","cross_cats":["astro-ph.IM","physics.space-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-05-19T13:43:28Z","title":"How long can you trust a Starlink TLE? An empirical comparison of SGP4 and high-fidelity propagation against operator-updated truth across a megaconstellation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.19850","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:5daba1827090aeaffd08b8070bdce6b8821364d2f9ac2857ff21e2c6ee054ed5","target":"record","created_at":"2026-05-20T01:06:17Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"cc2b0d662c7a1e0d2ef284d2a4cdccf9631426c0a1fbfde023d8ce9bd38269ee","cross_cats_sorted":["astro-ph.IM","physics.space-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-05-19T13:43:28Z","title_canon_sha256":"9bf03af2a77d87212685908df2f6b1249e2f3cfdb403f11e02df49acad8d81eb"},"schema_version":"1.0","source":{"id":"2605.19850","kind":"arxiv","version":1}},"canonical_sha256":"49f60bae719857f3dc9c62c2fc1cc5f43b94484e8e5db6e5ca3658b2ec7dcf16","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"49f60bae719857f3dc9c62c2fc1cc5f43b94484e8e5db6e5ca3658b2ec7dcf16","first_computed_at":"2026-05-20T01:06:17.581006Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-20T01:06:17.581006Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"M+A52nrvMPbI0JxXnCn6rpooZXDMcS2Q3ab6H+nDBIURWRwTHGvnqFP5PX+wzx0fnJWKc7sS6rEQ1+l6Si/RDA==","signature_status":"signed_v1","signed_at":"2026-05-20T01:06:17.581793Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.19850","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5daba1827090aeaffd08b8070bdce6b8821364d2f9ac2857ff21e2c6ee054ed5","sha256:43f5e8eadbbe227366c97216328982201d1cfd9ff3fdc13261b94a60aa1ce84c"],"state_sha256":"b8e746f55233eeb2bd9d23c20dea87eb3e766b1399fcd17f29ebb1d5854b3395"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YTUjNUVtBS+4OiL/d1eMcWKnim0Bo/g2AWi/CcuVKjC9KxU/52BHkCvzrKtjYD04/CQpd4eZmKb5/6L4yUzCCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-22T09:53:54.711961Z","bundle_sha256":"a00fb45672f783b06317ca261a3c50d9e5dbbfaceb978316b1947d92ab42af57"}}