{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:T6CA3SQY7OA7RLHBYP4TNTGPBA","short_pith_number":"pith:T6CA3SQY","canonical_record":{"source":{"id":"2401.04380","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2024-01-09T07:00:59Z","cross_cats_sorted":[],"title_canon_sha256":"75129ddffa70ef0a56b7d5a074cec4cc415e623ae1e5b81753e74a63fc66e74c","abstract_canon_sha256":"84fc04218d830383b5a9f0285d97427e0084d9035eb052a43b67ea30e9da8dec"},"schema_version":"1.0"},"canonical_sha256":"9f840dca18fb81f8ace1c3f936cccf080dc1bc1744246edd015bb9898190bf8a","source":{"kind":"arxiv","id":"2401.04380","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2401.04380","created_at":"2026-07-05T07:31:43Z"},{"alias_kind":"arxiv_version","alias_value":"2401.04380v1","created_at":"2026-07-05T07:31:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2401.04380","created_at":"2026-07-05T07:31:43Z"},{"alias_kind":"pith_short_12","alias_value":"T6CA3SQY7OA7","created_at":"2026-07-05T07:31:43Z"},{"alias_kind":"pith_short_16","alias_value":"T6CA3SQY7OA7RLHB","created_at":"2026-07-05T07:31:43Z"},{"alias_kind":"pith_short_8","alias_value":"T6CA3SQY","created_at":"2026-07-05T07:31:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:T6CA3SQY7OA7RLHBYP4TNTGPBA","target":"record","payload":{"canonical_record":{"source":{"id":"2401.04380","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2024-01-09T07:00:59Z","cross_cats_sorted":[],"title_canon_sha256":"75129ddffa70ef0a56b7d5a074cec4cc415e623ae1e5b81753e74a63fc66e74c","abstract_canon_sha256":"84fc04218d830383b5a9f0285d97427e0084d9035eb052a43b67ea30e9da8dec"},"schema_version":"1.0"},"canonical_sha256":"9f840dca18fb81f8ace1c3f936cccf080dc1bc1744246edd015bb9898190bf8a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:31:43.090040Z","signature_b64":"0MEMoGb+o03zcbfF6BWDzuWO9wJriFvJsRTBm+cQFxlJKD8WAP0qfQXg39Sl4uPM2OfEYtcrQKtATiPFG1/qAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9f840dca18fb81f8ace1c3f936cccf080dc1bc1744246edd015bb9898190bf8a","last_reissued_at":"2026-07-05T07:31:43.089508Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:31:43.089508Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2401.04380","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":"2026-07-05T07:31:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ehk5Wde3m0yK5/6FKB1xUYCYeYuB7fbXI0HeN4DHbuS3+t7JfmgovV89rqg62Rfgw88iOXZIV9tc1kYnM8tHDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T10:31:53.113898Z"},"content_sha256":"f242121f1ca0ab5daf72cbcd35f95e2c77162338ed48edefd89bad700eedd3f0","schema_version":"1.0","event_id":"sha256:f242121f1ca0ab5daf72cbcd35f95e2c77162338ed48edefd89bad700eedd3f0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:T6CA3SQY7OA7RLHBYP4TNTGPBA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A radius valley between migrated steam worlds and evaporated rocky cores","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Alexandre Emsenhuber, Christoph Mordasini, Jonas Haldemann, Julia Venturini, Lokesh Mishra, Remo Burn, Thomas Henning","submitted_at":"2024-01-09T07:00:59Z","abstract_excerpt":"The radius valley (or gap) in the observed distribution of exoplanet radii, which separates smaller super-Earths from larger sub-Neptunes, is a key feature that theoretical models must explain. Conventionally, it is interpreted as the result of the loss of primordial H/He envelopes atop rocky cores. However, planet formation models predict that water-rich planets migrate from regions outside the snowline toward the star. Assuming water to be in the form of solid ice in their interior, many of these planets would be located in the radius gap, in disagreement with observations. Here we use an ad"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2401.04380","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/2401.04380/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":"2026-07-05T07:31:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UGZTax4Ga5+H0eHRC0z36pHhLoY63bc82W9EnyjuxT/CyzeDusoSiwoEbq/rqqj9/GPLwrosdTVq4SaSONObDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T10:31:53.114264Z"},"content_sha256":"0823c979ac0a8fb988fda80aba281c75ec6e2a88388b1ca27b8a4bf960fea7b8","schema_version":"1.0","event_id":"sha256:0823c979ac0a8fb988fda80aba281c75ec6e2a88388b1ca27b8a4bf960fea7b8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/T6CA3SQY7OA7RLHBYP4TNTGPBA/bundle.json","state_url":"https://pith.science/pith/T6CA3SQY7OA7RLHBYP4TNTGPBA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/T6CA3SQY7OA7RLHBYP4TNTGPBA/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":"2026-07-07T10:31:53Z","links":{"resolver":"https://pith.science/pith/T6CA3SQY7OA7RLHBYP4TNTGPBA","bundle":"https://pith.science/pith/T6CA3SQY7OA7RLHBYP4TNTGPBA/bundle.json","state":"https://pith.science/pith/T6CA3SQY7OA7RLHBYP4TNTGPBA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/T6CA3SQY7OA7RLHBYP4TNTGPBA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:T6CA3SQY7OA7RLHBYP4TNTGPBA","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":"84fc04218d830383b5a9f0285d97427e0084d9035eb052a43b67ea30e9da8dec","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2024-01-09T07:00:59Z","title_canon_sha256":"75129ddffa70ef0a56b7d5a074cec4cc415e623ae1e5b81753e74a63fc66e74c"},"schema_version":"1.0","source":{"id":"2401.04380","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2401.04380","created_at":"2026-07-05T07:31:43Z"},{"alias_kind":"arxiv_version","alias_value":"2401.04380v1","created_at":"2026-07-05T07:31:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2401.04380","created_at":"2026-07-05T07:31:43Z"},{"alias_kind":"pith_short_12","alias_value":"T6CA3SQY7OA7","created_at":"2026-07-05T07:31:43Z"},{"alias_kind":"pith_short_16","alias_value":"T6CA3SQY7OA7RLHB","created_at":"2026-07-05T07:31:43Z"},{"alias_kind":"pith_short_8","alias_value":"T6CA3SQY","created_at":"2026-07-05T07:31:43Z"}],"graph_snapshots":[{"event_id":"sha256:0823c979ac0a8fb988fda80aba281c75ec6e2a88388b1ca27b8a4bf960fea7b8","target":"graph","created_at":"2026-07-05T07:31:43Z","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/2401.04380/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The radius valley (or gap) in the observed distribution of exoplanet radii, which separates smaller super-Earths from larger sub-Neptunes, is a key feature that theoretical models must explain. Conventionally, it is interpreted as the result of the loss of primordial H/He envelopes atop rocky cores. However, planet formation models predict that water-rich planets migrate from regions outside the snowline toward the star. Assuming water to be in the form of solid ice in their interior, many of these planets would be located in the radius gap, in disagreement with observations. Here we use an ad","authors_text":"Alexandre Emsenhuber, Christoph Mordasini, Jonas Haldemann, Julia Venturini, Lokesh Mishra, Remo Burn, Thomas Henning","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2024-01-09T07:00:59Z","title":"A radius valley between migrated steam worlds and evaporated rocky cores"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2401.04380","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:f242121f1ca0ab5daf72cbcd35f95e2c77162338ed48edefd89bad700eedd3f0","target":"record","created_at":"2026-07-05T07:31:43Z","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":"84fc04218d830383b5a9f0285d97427e0084d9035eb052a43b67ea30e9da8dec","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2024-01-09T07:00:59Z","title_canon_sha256":"75129ddffa70ef0a56b7d5a074cec4cc415e623ae1e5b81753e74a63fc66e74c"},"schema_version":"1.0","source":{"id":"2401.04380","kind":"arxiv","version":1}},"canonical_sha256":"9f840dca18fb81f8ace1c3f936cccf080dc1bc1744246edd015bb9898190bf8a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9f840dca18fb81f8ace1c3f936cccf080dc1bc1744246edd015bb9898190bf8a","first_computed_at":"2026-07-05T07:31:43.089508Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:31:43.089508Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0MEMoGb+o03zcbfF6BWDzuWO9wJriFvJsRTBm+cQFxlJKD8WAP0qfQXg39Sl4uPM2OfEYtcrQKtATiPFG1/qAg==","signature_status":"signed_v1","signed_at":"2026-07-05T07:31:43.090040Z","signed_message":"canonical_sha256_bytes"},"source_id":"2401.04380","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f242121f1ca0ab5daf72cbcd35f95e2c77162338ed48edefd89bad700eedd3f0","sha256:0823c979ac0a8fb988fda80aba281c75ec6e2a88388b1ca27b8a4bf960fea7b8"],"state_sha256":"cf2b51a690eb78ee139a75d499078ce34e5e8f859ccd49433b00b9979954b431"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9XZTTVYxdw97N7vc0hXUWKhp9Kl5WEXmJPyP6DPXCcd1bVfnVn7bwhAo4Q0qoFKyCNuVzz84yX/9hZbnEoQdBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T10:31:53.117650Z","bundle_sha256":"1a171efdbf5c6b57f4f348478b753b6fa4fb045d03f46e1a5c761a63b4ff2ea7"}}