{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:VZON7QOVPNULCI3S7RJODKYT6N","short_pith_number":"pith:VZON7QOV","canonical_record":{"source":{"id":"1710.05398","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-10-15T20:55:49Z","cross_cats_sorted":[],"title_canon_sha256":"a95370b18bb545e149877e42a71e66c93961a1fd15c95aa671eb58ce7ba373c7","abstract_canon_sha256":"dd9b513f9f4776e4250498570351fb12d40d9703da1c3e64a0352beef6ca892d"},"schema_version":"1.0"},"canonical_sha256":"ae5cdfc1d57b68b12372fc52e1ab13f34418d1267a1c73ad4be0029257abb8a9","source":{"kind":"arxiv","id":"1710.05398","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.05398","created_at":"2026-05-18T00:09:19Z"},{"alias_kind":"arxiv_version","alias_value":"1710.05398v2","created_at":"2026-05-18T00:09:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.05398","created_at":"2026-05-18T00:09:19Z"},{"alias_kind":"pith_short_12","alias_value":"VZON7QOVPNUL","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_16","alias_value":"VZON7QOVPNULCI3S","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_8","alias_value":"VZON7QOV","created_at":"2026-05-18T12:31:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:VZON7QOVPNULCI3S7RJODKYT6N","target":"record","payload":{"canonical_record":{"source":{"id":"1710.05398","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-10-15T20:55:49Z","cross_cats_sorted":[],"title_canon_sha256":"a95370b18bb545e149877e42a71e66c93961a1fd15c95aa671eb58ce7ba373c7","abstract_canon_sha256":"dd9b513f9f4776e4250498570351fb12d40d9703da1c3e64a0352beef6ca892d"},"schema_version":"1.0"},"canonical_sha256":"ae5cdfc1d57b68b12372fc52e1ab13f34418d1267a1c73ad4be0029257abb8a9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:09:19.601644Z","signature_b64":"yI7VXK6Aa93eg4SZx+RbxafOYSGEuUrRy6rO9wjKRvjd7+VXiyljali45r8EUleuVOM9UQxiW2IlDG8L3IgXDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ae5cdfc1d57b68b12372fc52e1ab13f34418d1267a1c73ad4be0029257abb8a9","last_reissued_at":"2026-05-18T00:09:19.601086Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:09:19.601086Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1710.05398","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":"2026-05-18T00:09:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kl6MNfnlDvwPARnAI4mGWiqWSHMXPJ3xxxYER00N6ofciOveLez0injtSZJQtAAMd1A3CgjAfXj1Tv+/KrzxDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T05:26:21.434560Z"},"content_sha256":"b6d084490e646137d7cc8ad891ab41761e41e5799994c462a87a569aa767210c","schema_version":"1.0","event_id":"sha256:b6d084490e646137d7cc8ad891ab41761e41e5799994c462a87a569aa767210c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:VZON7QOVPNULCI3S7RJODKYT6N","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An asteroseismic view of the radius valley: stripped cores, not born rocky","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Benjamin J. Fulton, Camilla Agentoft, Erik Petigura, Hans Kjeldsen, Ignas Snellen, James E. Owen, Mia. S. Lundkvist, Vincent Van Eylen","submitted_at":"2017-10-15T20:55:49Z","abstract_excerpt":"Various theoretical models treating the effect of stellar irradiation on planetary envelopes predict the presence of a radius valley: i.e. a bimodal distribution of planet radii, with super-Earths and sub-Neptune planets separated by a valley at around $\\approx 2~R_\\oplus$. Such a valley was observed recently, owing to an improvement in the precision of stellar, and therefore planetary radii. Here we investigate the presence, location and shape of such a valley using a small sample with highly accurate stellar parameters determined from asteroseismology, which includes 117 planets with a media"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.05398","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":"2026-05-18T00:09:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UPEcMJO/eyjKEsRN1wSafYaftYQp5Rg+Oq2ormb0kNO97KAj7nvwlyiC0Kp9ml8a3U0bIaGWnmJLCAsAV5NrAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T05:26:21.435201Z"},"content_sha256":"1a27a36e0d573e76b28d79a2da4177e4144c421a84afce34e566c714fddf9517","schema_version":"1.0","event_id":"sha256:1a27a36e0d573e76b28d79a2da4177e4144c421a84afce34e566c714fddf9517"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VZON7QOVPNULCI3S7RJODKYT6N/bundle.json","state_url":"https://pith.science/pith/VZON7QOVPNULCI3S7RJODKYT6N/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VZON7QOVPNULCI3S7RJODKYT6N/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":"2026-05-31T05:26:21Z","links":{"resolver":"https://pith.science/pith/VZON7QOVPNULCI3S7RJODKYT6N","bundle":"https://pith.science/pith/VZON7QOVPNULCI3S7RJODKYT6N/bundle.json","state":"https://pith.science/pith/VZON7QOVPNULCI3S7RJODKYT6N/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VZON7QOVPNULCI3S7RJODKYT6N/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:VZON7QOVPNULCI3S7RJODKYT6N","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":"dd9b513f9f4776e4250498570351fb12d40d9703da1c3e64a0352beef6ca892d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-10-15T20:55:49Z","title_canon_sha256":"a95370b18bb545e149877e42a71e66c93961a1fd15c95aa671eb58ce7ba373c7"},"schema_version":"1.0","source":{"id":"1710.05398","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.05398","created_at":"2026-05-18T00:09:19Z"},{"alias_kind":"arxiv_version","alias_value":"1710.05398v2","created_at":"2026-05-18T00:09:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.05398","created_at":"2026-05-18T00:09:19Z"},{"alias_kind":"pith_short_12","alias_value":"VZON7QOVPNUL","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_16","alias_value":"VZON7QOVPNULCI3S","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_8","alias_value":"VZON7QOV","created_at":"2026-05-18T12:31:49Z"}],"graph_snapshots":[{"event_id":"sha256:1a27a36e0d573e76b28d79a2da4177e4144c421a84afce34e566c714fddf9517","target":"graph","created_at":"2026-05-18T00:09:19Z","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":"Various theoretical models treating the effect of stellar irradiation on planetary envelopes predict the presence of a radius valley: i.e. a bimodal distribution of planet radii, with super-Earths and sub-Neptune planets separated by a valley at around $\\approx 2~R_\\oplus$. Such a valley was observed recently, owing to an improvement in the precision of stellar, and therefore planetary radii. Here we investigate the presence, location and shape of such a valley using a small sample with highly accurate stellar parameters determined from asteroseismology, which includes 117 planets with a media","authors_text":"Benjamin J. Fulton, Camilla Agentoft, Erik Petigura, Hans Kjeldsen, Ignas Snellen, James E. Owen, Mia. S. Lundkvist, Vincent Van Eylen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-10-15T20:55:49Z","title":"An asteroseismic view of the radius valley: stripped cores, not born rocky"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.05398","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:b6d084490e646137d7cc8ad891ab41761e41e5799994c462a87a569aa767210c","target":"record","created_at":"2026-05-18T00:09:19Z","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":"dd9b513f9f4776e4250498570351fb12d40d9703da1c3e64a0352beef6ca892d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-10-15T20:55:49Z","title_canon_sha256":"a95370b18bb545e149877e42a71e66c93961a1fd15c95aa671eb58ce7ba373c7"},"schema_version":"1.0","source":{"id":"1710.05398","kind":"arxiv","version":2}},"canonical_sha256":"ae5cdfc1d57b68b12372fc52e1ab13f34418d1267a1c73ad4be0029257abb8a9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ae5cdfc1d57b68b12372fc52e1ab13f34418d1267a1c73ad4be0029257abb8a9","first_computed_at":"2026-05-18T00:09:19.601086Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:09:19.601086Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yI7VXK6Aa93eg4SZx+RbxafOYSGEuUrRy6rO9wjKRvjd7+VXiyljali45r8EUleuVOM9UQxiW2IlDG8L3IgXDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:09:19.601644Z","signed_message":"canonical_sha256_bytes"},"source_id":"1710.05398","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b6d084490e646137d7cc8ad891ab41761e41e5799994c462a87a569aa767210c","sha256:1a27a36e0d573e76b28d79a2da4177e4144c421a84afce34e566c714fddf9517"],"state_sha256":"b676681f69e561d5f6e5de84fe2ef423856eee6ecb88ac550ce47be367125a45"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E4vDpI4wX9L/xhR4eYzkYV9XTpwGZTZ57+q7WXFgrISOExsLUc3iCNkw1GbntGRgMMB+p7PL+oReyijKArlcCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T05:26:21.438908Z","bundle_sha256":"8e6d16d8acf9b2432b96bdb11d9d7934c8596b8166ff3c12a1479280dfce8101"}}