{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:IDS45ZCI4YOSYBL74FP2O2V5QG","short_pith_number":"pith:IDS45ZCI","canonical_record":{"source":{"id":"1501.06572","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-01-26T21:00:10Z","cross_cats_sorted":[],"title_canon_sha256":"03dc087bbb2ee65dfb538b091f18cdc226418e1d6c4a66fe7004470d6f4251d7","abstract_canon_sha256":"7cf889adc67b66d77de67a677b601d7a5ca50fd6f8381d0e71e8282bc93a3cb3"},"schema_version":"1.0"},"canonical_sha256":"40e5cee448e61d2c057fe15fa76abd819bb2e2514b67ffc3d9c1b4b9fa3bf23d","source":{"kind":"arxiv","id":"1501.06572","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.06572","created_at":"2026-05-18T02:28:39Z"},{"alias_kind":"arxiv_version","alias_value":"1501.06572v1","created_at":"2026-05-18T02:28:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.06572","created_at":"2026-05-18T02:28:39Z"},{"alias_kind":"pith_short_12","alias_value":"IDS45ZCI4YOS","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_16","alias_value":"IDS45ZCI4YOSYBL7","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_8","alias_value":"IDS45ZCI","created_at":"2026-05-18T12:29:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:IDS45ZCI4YOSYBL74FP2O2V5QG","target":"record","payload":{"canonical_record":{"source":{"id":"1501.06572","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-01-26T21:00:10Z","cross_cats_sorted":[],"title_canon_sha256":"03dc087bbb2ee65dfb538b091f18cdc226418e1d6c4a66fe7004470d6f4251d7","abstract_canon_sha256":"7cf889adc67b66d77de67a677b601d7a5ca50fd6f8381d0e71e8282bc93a3cb3"},"schema_version":"1.0"},"canonical_sha256":"40e5cee448e61d2c057fe15fa76abd819bb2e2514b67ffc3d9c1b4b9fa3bf23d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:28:39.551171Z","signature_b64":"TBbRiOAMFdfxhb/jtU/mKiBDt7+y44DO22DEWiIDjudzmXLsS1PxCH3QaUMN6Wh17ffqm599Nc55q49TXjeiAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"40e5cee448e61d2c057fe15fa76abd819bb2e2514b67ffc3d9c1b4b9fa3bf23d","last_reissued_at":"2026-05-18T02:28:39.550663Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:28:39.550663Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1501.06572","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":"2026-05-18T02:28:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qNRugzqF/97O8KPnuBdKzbusadmT/AL8P7nlsm8j9QyAlCS2fFCufXwRrNcMA9dXevdN3hOvThK8IHTJLyGeCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T21:48:01.144271Z"},"content_sha256":"b2f0eef0d54f61043b5985539966a9b12be285c89f65e6c91b4e01bea93186f8","schema_version":"1.0","event_id":"sha256:b2f0eef0d54f61043b5985539966a9b12be285c89f65e6c91b4e01bea93186f8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:IDS45ZCI4YOSYBL74FP2O2V5QG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Habitable Evaporated Cores: Transforming Mini-Neptunes into Super-Earths in the Habitable Zones of M Dwarfs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Brian Jackson, Eric Lopez, Jonathan Fortney, Rodrigo Luger, Rory Barnes, Victoria Meadows","submitted_at":"2015-01-26T21:00:10Z","abstract_excerpt":"We show that photoevaporation of small gaseous exoplanets (\"mini-Neptunes\") in the habitable zones of M dwarfs can remove several Earth masses of hydrogen and helium from these planets and transform them into potentially habitable worlds. We couple X-ray/extreme ultraviolet (XUV)-driven escape, thermal evolution, tidal evolution and orbital migration to explore the types of systems that may harbor such \"habitable evaporated cores\" (HECs). We find that HECs are most likely to form from planets with $\\sim 1 M_\\oplus$ solid cores with up to about 50% H/He by mass, though whether or not a given mi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.06572","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":""},"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":"2026-05-18T02:28:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5gN3DdpGrVZOLLfVXdREqNMDU+1IZW0v3wS0+0fkBt8nPq1wTADQoDiAW3RaK6rj559BFqxCu6bdb9wYMpLPDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T21:48:01.144643Z"},"content_sha256":"6f1f5ded648dccc5911520cba60d54bdd64fefd4344d42805b6a14a41c79870a","schema_version":"1.0","event_id":"sha256:6f1f5ded648dccc5911520cba60d54bdd64fefd4344d42805b6a14a41c79870a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IDS45ZCI4YOSYBL74FP2O2V5QG/bundle.json","state_url":"https://pith.science/pith/IDS45ZCI4YOSYBL74FP2O2V5QG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IDS45ZCI4YOSYBL74FP2O2V5QG/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":"2026-05-26T21:48:01Z","links":{"resolver":"https://pith.science/pith/IDS45ZCI4YOSYBL74FP2O2V5QG","bundle":"https://pith.science/pith/IDS45ZCI4YOSYBL74FP2O2V5QG/bundle.json","state":"https://pith.science/pith/IDS45ZCI4YOSYBL74FP2O2V5QG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IDS45ZCI4YOSYBL74FP2O2V5QG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:IDS45ZCI4YOSYBL74FP2O2V5QG","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":"7cf889adc67b66d77de67a677b601d7a5ca50fd6f8381d0e71e8282bc93a3cb3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-01-26T21:00:10Z","title_canon_sha256":"03dc087bbb2ee65dfb538b091f18cdc226418e1d6c4a66fe7004470d6f4251d7"},"schema_version":"1.0","source":{"id":"1501.06572","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.06572","created_at":"2026-05-18T02:28:39Z"},{"alias_kind":"arxiv_version","alias_value":"1501.06572v1","created_at":"2026-05-18T02:28:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.06572","created_at":"2026-05-18T02:28:39Z"},{"alias_kind":"pith_short_12","alias_value":"IDS45ZCI4YOS","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_16","alias_value":"IDS45ZCI4YOSYBL7","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_8","alias_value":"IDS45ZCI","created_at":"2026-05-18T12:29:25Z"}],"graph_snapshots":[{"event_id":"sha256:6f1f5ded648dccc5911520cba60d54bdd64fefd4344d42805b6a14a41c79870a","target":"graph","created_at":"2026-05-18T02:28:39Z","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 show that photoevaporation of small gaseous exoplanets (\"mini-Neptunes\") in the habitable zones of M dwarfs can remove several Earth masses of hydrogen and helium from these planets and transform them into potentially habitable worlds. We couple X-ray/extreme ultraviolet (XUV)-driven escape, thermal evolution, tidal evolution and orbital migration to explore the types of systems that may harbor such \"habitable evaporated cores\" (HECs). We find that HECs are most likely to form from planets with $\\sim 1 M_\\oplus$ solid cores with up to about 50% H/He by mass, though whether or not a given mi","authors_text":"Brian Jackson, Eric Lopez, Jonathan Fortney, Rodrigo Luger, Rory Barnes, Victoria Meadows","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-01-26T21:00:10Z","title":"Habitable Evaporated Cores: Transforming Mini-Neptunes into Super-Earths in the Habitable Zones of M Dwarfs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.06572","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:b2f0eef0d54f61043b5985539966a9b12be285c89f65e6c91b4e01bea93186f8","target":"record","created_at":"2026-05-18T02:28:39Z","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":"7cf889adc67b66d77de67a677b601d7a5ca50fd6f8381d0e71e8282bc93a3cb3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-01-26T21:00:10Z","title_canon_sha256":"03dc087bbb2ee65dfb538b091f18cdc226418e1d6c4a66fe7004470d6f4251d7"},"schema_version":"1.0","source":{"id":"1501.06572","kind":"arxiv","version":1}},"canonical_sha256":"40e5cee448e61d2c057fe15fa76abd819bb2e2514b67ffc3d9c1b4b9fa3bf23d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"40e5cee448e61d2c057fe15fa76abd819bb2e2514b67ffc3d9c1b4b9fa3bf23d","first_computed_at":"2026-05-18T02:28:39.550663Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:28:39.550663Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TBbRiOAMFdfxhb/jtU/mKiBDt7+y44DO22DEWiIDjudzmXLsS1PxCH3QaUMN6Wh17ffqm599Nc55q49TXjeiAg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:28:39.551171Z","signed_message":"canonical_sha256_bytes"},"source_id":"1501.06572","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b2f0eef0d54f61043b5985539966a9b12be285c89f65e6c91b4e01bea93186f8","sha256:6f1f5ded648dccc5911520cba60d54bdd64fefd4344d42805b6a14a41c79870a"],"state_sha256":"8e5c3cc1866c516b8b1fd9b632390b819d08a5ef7f6b961737542a3b2f3c5f94"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YcaZjIeZaubDXpMnusMH+qRwihXSSRZWS8bNAGRyNry1b7UHVwSyLh0aB7Q9qvVanIHVj3bk4XlookZ0nENoBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T21:48:01.146944Z","bundle_sha256":"33596158173e3bd805b1f4f5c7368d89bb7f0a8d00c80518163acae6d129fbcc"}}