{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:OCBJ5TCLNIODM2CVMY4SBW6YZF","short_pith_number":"pith:OCBJ5TCL","canonical_record":{"source":{"id":"1401.2885","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-01-13T15:56:52Z","cross_cats_sorted":[],"title_canon_sha256":"1480248651661734b0706b7e24f087477628d85ad18d168e277b355d1a1bbe18","abstract_canon_sha256":"6589305fc694b60e8f03863929f5f412ee953e274e198a0da9480cf8ab81b851"},"schema_version":"1.0"},"canonical_sha256":"70829ecc4b6a1c366855663920dbd8c97e891aa41d1c6c22ea1a959a8671ee94","source":{"kind":"arxiv","id":"1401.2885","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.2885","created_at":"2026-05-18T02:59:05Z"},{"alias_kind":"arxiv_version","alias_value":"1401.2885v2","created_at":"2026-05-18T02:59:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.2885","created_at":"2026-05-18T02:59:05Z"},{"alias_kind":"pith_short_12","alias_value":"OCBJ5TCLNIOD","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_16","alias_value":"OCBJ5TCLNIODM2CV","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_8","alias_value":"OCBJ5TCL","created_at":"2026-05-18T12:28:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:OCBJ5TCLNIODM2CVMY4SBW6YZF","target":"record","payload":{"canonical_record":{"source":{"id":"1401.2885","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-01-13T15:56:52Z","cross_cats_sorted":[],"title_canon_sha256":"1480248651661734b0706b7e24f087477628d85ad18d168e277b355d1a1bbe18","abstract_canon_sha256":"6589305fc694b60e8f03863929f5f412ee953e274e198a0da9480cf8ab81b851"},"schema_version":"1.0"},"canonical_sha256":"70829ecc4b6a1c366855663920dbd8c97e891aa41d1c6c22ea1a959a8671ee94","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:59:05.775273Z","signature_b64":"4OuwEZ5hb4F5DdY/ILkZldWAKxSjRPOYXjq8EVovwZ4068qCHhabqe5UXv9ZdAmM2TjuhacZ+LJsxLqwoIEfDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"70829ecc4b6a1c366855663920dbd8c97e891aa41d1c6c22ea1a959a8671ee94","last_reissued_at":"2026-05-18T02:59:05.774640Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:59:05.774640Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1401.2885","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:59:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZTVuSSjkC9IruNCdlsgexw2HNpYviqocDvFTV7lmHVxyMJl1noDlEkSiQz5eC1dRWR5Xjq1SevgypRvr1XF4AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T03:26:21.129640Z"},"content_sha256":"f5aa0af6b6739c2cb7587af4815ddc39b6b9467167234db6a332b5c6abed9605","schema_version":"1.0","event_id":"sha256:f5aa0af6b6739c2cb7587af4815ddc39b6b9467167234db6a332b5c6abed9605"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:OCBJ5TCLNIODM2CVMY4SBW6YZF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Very Low-Density Planets around Kepler-51 Revealed with Transit Timing Variations and an Anomaly Similar to a Planet-Planet Eclipse Event","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Kento Masuda","submitted_at":"2014-01-13T15:56:52Z","abstract_excerpt":"We present an analysis of the transit timing variations (TTVs) in the multi-transiting planetary system around Kepler-51 (KOI-620). This system consists of two confirmed transiting planets, Kepler-51b ($P_{\\rm b} = 45.2\\,\\mathrm{days}$) and Kepler-51c ($P_{\\rm c} = 85.3\\,\\mathrm{days}$), and one transiting planet candidate KOI-620.02 ($P_{02} = 130.2\\,\\mathrm{days}$), which lie close to a $1:2:3$ resonance chain. Our analysis shows that their TTVs are consistently explained by the three-planet model, and constrains their masses as $M_{\\rm b} = 2.1_{-0.8}^{+1.5} M_{\\oplus}$ (Kepler-51b), $M_{\\r"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.2885","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"2026-05-18T02:59:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yOQL7FGftYdtqlMn441frlOags/ZJ58IrCDxuFUepwk/R1FVhAk9x2eir01ebZWhbTyD/ILsXxFfrGt7AjE3Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T03:26:21.129978Z"},"content_sha256":"7587ec1982ccdfdd08912f0380a1ca060532e5c5ba0a34e6a0e2934eac43250c","schema_version":"1.0","event_id":"sha256:7587ec1982ccdfdd08912f0380a1ca060532e5c5ba0a34e6a0e2934eac43250c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OCBJ5TCLNIODM2CVMY4SBW6YZF/bundle.json","state_url":"https://pith.science/pith/OCBJ5TCLNIODM2CVMY4SBW6YZF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OCBJ5TCLNIODM2CVMY4SBW6YZF/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":"2026-06-28T03:26:21Z","links":{"resolver":"https://pith.science/pith/OCBJ5TCLNIODM2CVMY4SBW6YZF","bundle":"https://pith.science/pith/OCBJ5TCLNIODM2CVMY4SBW6YZF/bundle.json","state":"https://pith.science/pith/OCBJ5TCLNIODM2CVMY4SBW6YZF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OCBJ5TCLNIODM2CVMY4SBW6YZF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:OCBJ5TCLNIODM2CVMY4SBW6YZF","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":"6589305fc694b60e8f03863929f5f412ee953e274e198a0da9480cf8ab81b851","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-01-13T15:56:52Z","title_canon_sha256":"1480248651661734b0706b7e24f087477628d85ad18d168e277b355d1a1bbe18"},"schema_version":"1.0","source":{"id":"1401.2885","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.2885","created_at":"2026-05-18T02:59:05Z"},{"alias_kind":"arxiv_version","alias_value":"1401.2885v2","created_at":"2026-05-18T02:59:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.2885","created_at":"2026-05-18T02:59:05Z"},{"alias_kind":"pith_short_12","alias_value":"OCBJ5TCLNIOD","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_16","alias_value":"OCBJ5TCLNIODM2CV","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_8","alias_value":"OCBJ5TCL","created_at":"2026-05-18T12:28:41Z"}],"graph_snapshots":[{"event_id":"sha256:7587ec1982ccdfdd08912f0380a1ca060532e5c5ba0a34e6a0e2934eac43250c","target":"graph","created_at":"2026-05-18T02:59:05Z","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"},"paper":{"abstract_excerpt":"We present an analysis of the transit timing variations (TTVs) in the multi-transiting planetary system around Kepler-51 (KOI-620). This system consists of two confirmed transiting planets, Kepler-51b ($P_{\\rm b} = 45.2\\,\\mathrm{days}$) and Kepler-51c ($P_{\\rm c} = 85.3\\,\\mathrm{days}$), and one transiting planet candidate KOI-620.02 ($P_{02} = 130.2\\,\\mathrm{days}$), which lie close to a $1:2:3$ resonance chain. Our analysis shows that their TTVs are consistently explained by the three-planet model, and constrains their masses as $M_{\\rm b} = 2.1_{-0.8}^{+1.5} M_{\\oplus}$ (Kepler-51b), $M_{\\r","authors_text":"Kento Masuda","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-01-13T15:56:52Z","title":"Very Low-Density Planets around Kepler-51 Revealed with Transit Timing Variations and an Anomaly Similar to a Planet-Planet Eclipse Event"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.2885","kind":"arxiv","version":2},"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:f5aa0af6b6739c2cb7587af4815ddc39b6b9467167234db6a332b5c6abed9605","target":"record","created_at":"2026-05-18T02:59:05Z","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":"6589305fc694b60e8f03863929f5f412ee953e274e198a0da9480cf8ab81b851","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-01-13T15:56:52Z","title_canon_sha256":"1480248651661734b0706b7e24f087477628d85ad18d168e277b355d1a1bbe18"},"schema_version":"1.0","source":{"id":"1401.2885","kind":"arxiv","version":2}},"canonical_sha256":"70829ecc4b6a1c366855663920dbd8c97e891aa41d1c6c22ea1a959a8671ee94","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"70829ecc4b6a1c366855663920dbd8c97e891aa41d1c6c22ea1a959a8671ee94","first_computed_at":"2026-05-18T02:59:05.774640Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:59:05.774640Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4OuwEZ5hb4F5DdY/ILkZldWAKxSjRPOYXjq8EVovwZ4068qCHhabqe5UXv9ZdAmM2TjuhacZ+LJsxLqwoIEfDw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:59:05.775273Z","signed_message":"canonical_sha256_bytes"},"source_id":"1401.2885","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f5aa0af6b6739c2cb7587af4815ddc39b6b9467167234db6a332b5c6abed9605","sha256:7587ec1982ccdfdd08912f0380a1ca060532e5c5ba0a34e6a0e2934eac43250c"],"state_sha256":"c3bf195a0724be1742b3c10e68cf378fe19caec5ae6f5a0f1693b9535087d5ea"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ead0t+UZOF4w3nKH2sxEh0jFpYyjdOpLG216Z4JDTIpLyaOliThWo3sI+YXI0Ppi5cWscaaT8m2uUOroyfisCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-28T03:26:21.131829Z","bundle_sha256":"7f409ecda9ac61d463004dbc5392364c3fd45190b8aff096c2572b44b34473e6"}}