{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:JPHXEKYO7ZC7NFTDLZLAIOCV5D","short_pith_number":"pith:JPHXEKYO","canonical_record":{"source":{"id":"2506.20561","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-06-25T15:58:07Z","cross_cats_sorted":[],"title_canon_sha256":"c25b6aab94fc33cda8b0c88904911e902f0d71761f679fbed4fad37a6aef0808","abstract_canon_sha256":"1ac9fe7f80931b113b335fed44b3ac7bd24a664668a71bd96ae9dca6ee527214"},"schema_version":"1.0"},"canonical_sha256":"4bcf722b0efe45f696635e56043855e8f3b2df51190c778b3aa05fa5bb71841a","source":{"kind":"arxiv","id":"2506.20561","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.20561","created_at":"2026-07-05T11:27:07Z"},{"alias_kind":"arxiv_version","alias_value":"2506.20561v1","created_at":"2026-07-05T11:27:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.20561","created_at":"2026-07-05T11:27:07Z"},{"alias_kind":"pith_short_12","alias_value":"JPHXEKYO7ZC7","created_at":"2026-07-05T11:27:07Z"},{"alias_kind":"pith_short_16","alias_value":"JPHXEKYO7ZC7NFTD","created_at":"2026-07-05T11:27:07Z"},{"alias_kind":"pith_short_8","alias_value":"JPHXEKYO","created_at":"2026-07-05T11:27:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:JPHXEKYO7ZC7NFTDLZLAIOCV5D","target":"record","payload":{"canonical_record":{"source":{"id":"2506.20561","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-06-25T15:58:07Z","cross_cats_sorted":[],"title_canon_sha256":"c25b6aab94fc33cda8b0c88904911e902f0d71761f679fbed4fad37a6aef0808","abstract_canon_sha256":"1ac9fe7f80931b113b335fed44b3ac7bd24a664668a71bd96ae9dca6ee527214"},"schema_version":"1.0"},"canonical_sha256":"4bcf722b0efe45f696635e56043855e8f3b2df51190c778b3aa05fa5bb71841a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:27:07.840170Z","signature_b64":"MrNTU9dZ86u74OOPkJRVvro/va8lk3lhJT3hhoPs5rrHXONj0B6t01gSz3uCRwn3FJOONQnS7V2+DrSM910jCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4bcf722b0efe45f696635e56043855e8f3b2df51190c778b3aa05fa5bb71841a","last_reissued_at":"2026-07-05T11:27:07.839720Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:27:07.839720Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2506.20561","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":"2026-07-05T11:27:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GluHcmQix2gbyda9+DPm/SzOVIAHIQXRDi5puT2n0A+wA8UymZwNEJ6X6c0a8PrNmlmIXquEJgHZ2azpgC5cBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T00:06:27.054153Z"},"content_sha256":"7ec48f945ab57c814125e8705a2fb30afec3b36915f589b8b41529266fce50da","schema_version":"1.0","event_id":"sha256:7ec48f945ab57c814125e8705a2fb30afec3b36915f589b8b41529266fce50da"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:JPHXEKYO7ZC7NFTDLZLAIOCV5D","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An Earth-like Density for the Temperate Earth-sized Planet GJ 12b","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Andreas Seifahrt, Caroline Piaulet-Ghorayeb, Jacob Bean, Julian St\\\"urmer, Lily Zhao, Madison Brady, Matthew Nixon, Michael Radica, Nina Brown, Rafael Luque, Ritvik Basant, Tanya Das","submitted_at":"2025-06-25T15:58:07Z","abstract_excerpt":"While JWST has provided us with the opportunity to probe the atmospheres of potentially-habitable planets, observations of the TRAPPIST-1 system have shown us that active stars severely complicate efforts at studying their planets. GJ 12b is a newly-discovered temperate (Teq ~ 300 K), Earth-sized (Rp = 0.96 +/- 0.05 Earth radii) planet orbiting an inactive M dwarf that might be a good alternate to the TRAPPIST-1 planets for atmospheric characterization. In this paper, we use MAROON-X radial velocities to measure a mass of 0.71 +/- 0.12 Earth masses for GJ 12b. We also find moderate evidence th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.20561","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/2506.20561/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":"2026-07-05T11:27:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0FrqoQF26EsK29ZtXhfjELRcwVYBDjbZ5PYQVl30k3O01fng9a1YXt6YzbzQLSR57fMErjIeP6CqJT7rg05cBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T00:06:27.055011Z"},"content_sha256":"7ddc369319fac481c62176cd3c26363f9e87c8c4aa38ecf349ba5c6b15c97995","schema_version":"1.0","event_id":"sha256:7ddc369319fac481c62176cd3c26363f9e87c8c4aa38ecf349ba5c6b15c97995"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JPHXEKYO7ZC7NFTDLZLAIOCV5D/bundle.json","state_url":"https://pith.science/pith/JPHXEKYO7ZC7NFTDLZLAIOCV5D/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JPHXEKYO7ZC7NFTDLZLAIOCV5D/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":"2026-08-11T00:06:27Z","links":{"resolver":"https://pith.science/pith/JPHXEKYO7ZC7NFTDLZLAIOCV5D","bundle":"https://pith.science/pith/JPHXEKYO7ZC7NFTDLZLAIOCV5D/bundle.json","state":"https://pith.science/pith/JPHXEKYO7ZC7NFTDLZLAIOCV5D/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JPHXEKYO7ZC7NFTDLZLAIOCV5D/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:JPHXEKYO7ZC7NFTDLZLAIOCV5D","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":"1ac9fe7f80931b113b335fed44b3ac7bd24a664668a71bd96ae9dca6ee527214","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-06-25T15:58:07Z","title_canon_sha256":"c25b6aab94fc33cda8b0c88904911e902f0d71761f679fbed4fad37a6aef0808"},"schema_version":"1.0","source":{"id":"2506.20561","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.20561","created_at":"2026-07-05T11:27:07Z"},{"alias_kind":"arxiv_version","alias_value":"2506.20561v1","created_at":"2026-07-05T11:27:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.20561","created_at":"2026-07-05T11:27:07Z"},{"alias_kind":"pith_short_12","alias_value":"JPHXEKYO7ZC7","created_at":"2026-07-05T11:27:07Z"},{"alias_kind":"pith_short_16","alias_value":"JPHXEKYO7ZC7NFTD","created_at":"2026-07-05T11:27:07Z"},{"alias_kind":"pith_short_8","alias_value":"JPHXEKYO","created_at":"2026-07-05T11:27:07Z"}],"graph_snapshots":[{"event_id":"sha256:7ddc369319fac481c62176cd3c26363f9e87c8c4aa38ecf349ba5c6b15c97995","target":"graph","created_at":"2026-07-05T11:27:07Z","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/2506.20561/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"While JWST has provided us with the opportunity to probe the atmospheres of potentially-habitable planets, observations of the TRAPPIST-1 system have shown us that active stars severely complicate efforts at studying their planets. GJ 12b is a newly-discovered temperate (Teq ~ 300 K), Earth-sized (Rp = 0.96 +/- 0.05 Earth radii) planet orbiting an inactive M dwarf that might be a good alternate to the TRAPPIST-1 planets for atmospheric characterization. In this paper, we use MAROON-X radial velocities to measure a mass of 0.71 +/- 0.12 Earth masses for GJ 12b. We also find moderate evidence th","authors_text":"Andreas Seifahrt, Caroline Piaulet-Ghorayeb, Jacob Bean, Julian St\\\"urmer, Lily Zhao, Madison Brady, Matthew Nixon, Michael Radica, Nina Brown, Rafael Luque, Ritvik Basant, Tanya Das","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-06-25T15:58:07Z","title":"An Earth-like Density for the Temperate Earth-sized Planet GJ 12b"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.20561","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":"sha256:7ec48f945ab57c814125e8705a2fb30afec3b36915f589b8b41529266fce50da","target":"record","created_at":"2026-07-05T11:27:07Z","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":"1ac9fe7f80931b113b335fed44b3ac7bd24a664668a71bd96ae9dca6ee527214","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-06-25T15:58:07Z","title_canon_sha256":"c25b6aab94fc33cda8b0c88904911e902f0d71761f679fbed4fad37a6aef0808"},"schema_version":"1.0","source":{"id":"2506.20561","kind":"arxiv","version":1}},"canonical_sha256":"4bcf722b0efe45f696635e56043855e8f3b2df51190c778b3aa05fa5bb71841a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4bcf722b0efe45f696635e56043855e8f3b2df51190c778b3aa05fa5bb71841a","first_computed_at":"2026-07-05T11:27:07.839720Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:27:07.839720Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MrNTU9dZ86u74OOPkJRVvro/va8lk3lhJT3hhoPs5rrHXONj0B6t01gSz3uCRwn3FJOONQnS7V2+DrSM910jCg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:27:07.840170Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.20561","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7ec48f945ab57c814125e8705a2fb30afec3b36915f589b8b41529266fce50da","sha256:7ddc369319fac481c62176cd3c26363f9e87c8c4aa38ecf349ba5c6b15c97995"],"state_sha256":"8ff293ea985735bbca693bab3b6500db918ac1c7ce48ad5c96cd7cc7e7eb217b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zwtKZRPmGHgsKXknFP+SFTqOUrKkIXt9M5pxH0sd2y26lf4DFwIcrfLx1wlH20zj6NrNeF3eK+OlhpzSU3PJBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T00:06:27.279290Z","bundle_sha256":"1ccdf326c79691a6d8554596173b864982ffe558ed8cb7d58389ed598606bd99"}}