{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:5XGSWK6O5D5WJ7MADEVELACFVF","short_pith_number":"pith:5XGSWK6O","canonical_record":{"source":{"id":"2503.20385","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-03-26T10:06:13Z","cross_cats_sorted":[],"title_canon_sha256":"8830c3ada8522e800305d4f06c6afe1c8fa78bb2d940c345a6b4713d9dd51213","abstract_canon_sha256":"3ab38392b9a278f24ef8f3a17257fd85146b2c713ef319faaab1b3a3c81fa3ef"},"schema_version":"1.0"},"canonical_sha256":"edcd2b2bcee8fb64fd80192a458045a94472ae3fde7c18a8cc5e87deb40ca5ac","source":{"kind":"arxiv","id":"2503.20385","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.20385","created_at":"2026-07-05T10:49:15Z"},{"alias_kind":"arxiv_version","alias_value":"2503.20385v2","created_at":"2026-07-05T10:49:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.20385","created_at":"2026-07-05T10:49:15Z"},{"alias_kind":"pith_short_12","alias_value":"5XGSWK6O5D5W","created_at":"2026-07-05T10:49:15Z"},{"alias_kind":"pith_short_16","alias_value":"5XGSWK6O5D5WJ7MA","created_at":"2026-07-05T10:49:15Z"},{"alias_kind":"pith_short_8","alias_value":"5XGSWK6O","created_at":"2026-07-05T10:49:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:5XGSWK6O5D5WJ7MADEVELACFVF","target":"record","payload":{"canonical_record":{"source":{"id":"2503.20385","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-03-26T10:06:13Z","cross_cats_sorted":[],"title_canon_sha256":"8830c3ada8522e800305d4f06c6afe1c8fa78bb2d940c345a6b4713d9dd51213","abstract_canon_sha256":"3ab38392b9a278f24ef8f3a17257fd85146b2c713ef319faaab1b3a3c81fa3ef"},"schema_version":"1.0"},"canonical_sha256":"edcd2b2bcee8fb64fd80192a458045a94472ae3fde7c18a8cc5e87deb40ca5ac","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:49:15.953650Z","signature_b64":"CrYtTwkCbaLYC64TXQfPi1BMoFobnM7zaFNOY0D1vEt68fUsGz+MGPCFIw0nTt494rWNyCpXVa6o72fmgKqrBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"edcd2b2bcee8fb64fd80192a458045a94472ae3fde7c18a8cc5e87deb40ca5ac","last_reissued_at":"2026-07-05T10:49:15.953173Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:49:15.953173Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2503.20385","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":"2026-07-05T10:49:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rY4nC7tb8bPQgC7dEraqlu+1DGG15npQQZ5ls/L51/nHOm1H5HE3tCeP+FiuVY/TTVpeSmnxfM0l2Hh8ckMNBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T20:43:30.033100Z"},"content_sha256":"419456b8c3363a3ed654873856bcc611f5eb5d06d28b0be3dcaaf4c44c6fc67c","schema_version":"1.0","event_id":"sha256:419456b8c3363a3ed654873856bcc611f5eb5d06d28b0be3dcaaf4c44c6fc67c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:5XGSWK6O5D5WJ7MADEVELACFVF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"RV-exoplanet eccentricities: Good, Beta, and Best","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"(2) Observatoire Astronomique de l'Universit\\'e de Gen\\'eve, (3) European Space Agency, A. T. Stevenson (1), C. A. Haswell (1), European Space Astronomy Centre, H. Dickinson (1), J. K. Barstow (1), J. P. Faria (2), J. R. Barnes (1), M. R. Standing (3) ((1) School of Physical Sciences, Spain), Switzerland, The Open University, UK","submitted_at":"2025-03-26T10:06:13Z","abstract_excerpt":"We examine the eccentricity distribution(s) of radial velocity detected exoplanets. Previously, the eccentricity distribution was found to be described well by a Beta distribution with shape parameters $a=0.867, b=3.03$. Increasing the sample size by a factor of 2.25, we find that the CDF regression method now prefers a mixture model of Rayleigh + Exponential distributions over the Beta distribution, with an increase in Bayesian evidence of $\\Delta\\ln{Z}\\sim 77$ ($12.6\\,\\sigma$). Using PDF regression, the eccentricity distribution is best described by a Gamma distribution, with a Rayleigh + Ex"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.20385","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2503.20385/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":"2026-07-05T10:49:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"22My4qhWwo18SLuWDAPtn02OClMH2/UBTfDPa6nfb/1TqQ8C9PON6/dZNoh3jo5u+v7a+7iXZucanuJ2TzlpBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T20:43:30.034054Z"},"content_sha256":"4986d3526d7f2ec9fb1fc8bf4bd91abde3b55b7e8a1268e95364e1c244f3d965","schema_version":"1.0","event_id":"sha256:4986d3526d7f2ec9fb1fc8bf4bd91abde3b55b7e8a1268e95364e1c244f3d965"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5XGSWK6O5D5WJ7MADEVELACFVF/bundle.json","state_url":"https://pith.science/pith/5XGSWK6O5D5WJ7MADEVELACFVF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5XGSWK6O5D5WJ7MADEVELACFVF/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":"2026-08-16T20:43:30Z","links":{"resolver":"https://pith.science/pith/5XGSWK6O5D5WJ7MADEVELACFVF","bundle":"https://pith.science/pith/5XGSWK6O5D5WJ7MADEVELACFVF/bundle.json","state":"https://pith.science/pith/5XGSWK6O5D5WJ7MADEVELACFVF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5XGSWK6O5D5WJ7MADEVELACFVF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:5XGSWK6O5D5WJ7MADEVELACFVF","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":"3ab38392b9a278f24ef8f3a17257fd85146b2c713ef319faaab1b3a3c81fa3ef","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-03-26T10:06:13Z","title_canon_sha256":"8830c3ada8522e800305d4f06c6afe1c8fa78bb2d940c345a6b4713d9dd51213"},"schema_version":"1.0","source":{"id":"2503.20385","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.20385","created_at":"2026-07-05T10:49:15Z"},{"alias_kind":"arxiv_version","alias_value":"2503.20385v2","created_at":"2026-07-05T10:49:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.20385","created_at":"2026-07-05T10:49:15Z"},{"alias_kind":"pith_short_12","alias_value":"5XGSWK6O5D5W","created_at":"2026-07-05T10:49:15Z"},{"alias_kind":"pith_short_16","alias_value":"5XGSWK6O5D5WJ7MA","created_at":"2026-07-05T10:49:15Z"},{"alias_kind":"pith_short_8","alias_value":"5XGSWK6O","created_at":"2026-07-05T10:49:15Z"}],"graph_snapshots":[{"event_id":"sha256:4986d3526d7f2ec9fb1fc8bf4bd91abde3b55b7e8a1268e95364e1c244f3d965","target":"graph","created_at":"2026-07-05T10:49:15Z","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/2503.20385/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We examine the eccentricity distribution(s) of radial velocity detected exoplanets. Previously, the eccentricity distribution was found to be described well by a Beta distribution with shape parameters $a=0.867, b=3.03$. Increasing the sample size by a factor of 2.25, we find that the CDF regression method now prefers a mixture model of Rayleigh + Exponential distributions over the Beta distribution, with an increase in Bayesian evidence of $\\Delta\\ln{Z}\\sim 77$ ($12.6\\,\\sigma$). Using PDF regression, the eccentricity distribution is best described by a Gamma distribution, with a Rayleigh + Ex","authors_text":"(2) Observatoire Astronomique de l'Universit\\'e de Gen\\'eve, (3) European Space Agency, A. T. Stevenson (1), C. A. Haswell (1), European Space Astronomy Centre, H. Dickinson (1), J. K. Barstow (1), J. P. Faria (2), J. R. Barnes (1), M. R. Standing (3) ((1) School of Physical Sciences, Spain), Switzerland, The Open University, UK","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-03-26T10:06:13Z","title":"RV-exoplanet eccentricities: Good, Beta, and Best"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.20385","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":"sha256:419456b8c3363a3ed654873856bcc611f5eb5d06d28b0be3dcaaf4c44c6fc67c","target":"record","created_at":"2026-07-05T10:49:15Z","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":"3ab38392b9a278f24ef8f3a17257fd85146b2c713ef319faaab1b3a3c81fa3ef","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-03-26T10:06:13Z","title_canon_sha256":"8830c3ada8522e800305d4f06c6afe1c8fa78bb2d940c345a6b4713d9dd51213"},"schema_version":"1.0","source":{"id":"2503.20385","kind":"arxiv","version":2}},"canonical_sha256":"edcd2b2bcee8fb64fd80192a458045a94472ae3fde7c18a8cc5e87deb40ca5ac","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"edcd2b2bcee8fb64fd80192a458045a94472ae3fde7c18a8cc5e87deb40ca5ac","first_computed_at":"2026-07-05T10:49:15.953173Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:49:15.953173Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CrYtTwkCbaLYC64TXQfPi1BMoFobnM7zaFNOY0D1vEt68fUsGz+MGPCFIw0nTt494rWNyCpXVa6o72fmgKqrBw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:49:15.953650Z","signed_message":"canonical_sha256_bytes"},"source_id":"2503.20385","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:419456b8c3363a3ed654873856bcc611f5eb5d06d28b0be3dcaaf4c44c6fc67c","sha256:4986d3526d7f2ec9fb1fc8bf4bd91abde3b55b7e8a1268e95364e1c244f3d965"],"state_sha256":"c4373f508453a6aa60871ed8128a10391ad5190fca68c51021d9436a49529836"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5hxSxIaZuMqb/UwbJpDvjGe4wL3X5lLAiiwyFsvQ66udSZ07wkvFhSEBLjfsYpiRGy+HxMpM8v20OtdVvnoqCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T20:43:30.043821Z","bundle_sha256":"d760bed9f55878285600461e59dfc2877c0d98f4d6e7c153dd6f7c4126262fc3"}}