{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:ZQPNBWOBWYGEUCQ2O7BRKXJOKG","short_pith_number":"pith:ZQPNBWOB","canonical_record":{"source":{"id":"2307.04989","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-07-11T02:58:28Z","cross_cats_sorted":[],"title_canon_sha256":"55e6aa3dd18683a8ccd0f2b6df5960df44f7a8b7a8cd2902f665647bdac9c6d2","abstract_canon_sha256":"c0e12e081adc88ae931e6019bd0c70fb86328a6225c81e4d281b9cdd5a364f3a"},"schema_version":"1.0"},"canonical_sha256":"cc1ed0d9c1b60c4a0a1a77c3155d2e51a1f4501b1951568303b727a07e5cc45f","source":{"kind":"arxiv","id":"2307.04989","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.04989","created_at":"2026-07-05T06:34:39Z"},{"alias_kind":"arxiv_version","alias_value":"2307.04989v1","created_at":"2026-07-05T06:34:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.04989","created_at":"2026-07-05T06:34:39Z"},{"alias_kind":"pith_short_12","alias_value":"ZQPNBWOBWYGE","created_at":"2026-07-05T06:34:39Z"},{"alias_kind":"pith_short_16","alias_value":"ZQPNBWOBWYGEUCQ2","created_at":"2026-07-05T06:34:39Z"},{"alias_kind":"pith_short_8","alias_value":"ZQPNBWOB","created_at":"2026-07-05T06:34:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:ZQPNBWOBWYGEUCQ2O7BRKXJOKG","target":"record","payload":{"canonical_record":{"source":{"id":"2307.04989","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-07-11T02:58:28Z","cross_cats_sorted":[],"title_canon_sha256":"55e6aa3dd18683a8ccd0f2b6df5960df44f7a8b7a8cd2902f665647bdac9c6d2","abstract_canon_sha256":"c0e12e081adc88ae931e6019bd0c70fb86328a6225c81e4d281b9cdd5a364f3a"},"schema_version":"1.0"},"canonical_sha256":"cc1ed0d9c1b60c4a0a1a77c3155d2e51a1f4501b1951568303b727a07e5cc45f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:34:39.025979Z","signature_b64":"6z/tgXzv3lAbOUdsZrjYb+yltKU+R7zJnxkiKiDEkEJktGjl6XmRhW0TYXAC34NDDBkkcetAmzHa9WPlstjLBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cc1ed0d9c1b60c4a0a1a77c3155d2e51a1f4501b1951568303b727a07e5cc45f","last_reissued_at":"2026-07-05T06:34:39.025605Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:34:39.025605Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2307.04989","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":"2026-07-05T06:34:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fFjcw7nNQFQ1gjN0lQNYTsb7uVwh07n2BENfaIDJwrQhAyKmzbVIH/R3MCQDoktMc6eGLLoQWzDgxI1wrt9yAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T02:02:27.721426Z"},"content_sha256":"fc2886a4a7cd847d7c91e9730b21aafd1e2b5c626511ddb078a59ab3d7c00599","schema_version":"1.0","event_id":"sha256:fc2886a4a7cd847d7c91e9730b21aafd1e2b5c626511ddb078a59ab3d7c00599"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:ZQPNBWOBWYGEUCQ2O7BRKXJOKG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Composition constraints of the TRAPPIST-1 planets from their formation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Anna C. Childs, Chao-Chin Yang, Cody Shakespeare, David R. Rice, Jason H. Steffen","submitted_at":"2023-07-11T02:58:28Z","abstract_excerpt":"We study the formation of the TRAPPIST-1 (T1) planets starting shortly after Moon-sized bodies form just exterior to the ice line. Our model includes mass growth from pebble accretion and mergers, fragmentation, type-I migration, and eccentricity and inclination dampening from gas drag. We follow the composition evolution of the planets fed by a dust condensation code that tracks how various dust species condense out of the disc as it cools. We use the final planet compositions to calculate the resulting radii of the planets using a new planet interior structure code and explore various interi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.04989","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/2307.04989/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":"2026-07-05T06:34:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2rAuAIIzzEn9fpSO3XQkCDHNuQoEfonoFTaM6p+9uiUHCOsyFOtRul9teoQRP0lz/1l+KuBO6JoInCPvuoLzAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T02:02:27.722946Z"},"content_sha256":"24e03b580b1bcfba75da24f1021e60b2abeff2f849467d820430c60e0ff32d74","schema_version":"1.0","event_id":"sha256:24e03b580b1bcfba75da24f1021e60b2abeff2f849467d820430c60e0ff32d74"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZQPNBWOBWYGEUCQ2O7BRKXJOKG/bundle.json","state_url":"https://pith.science/pith/ZQPNBWOBWYGEUCQ2O7BRKXJOKG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZQPNBWOBWYGEUCQ2O7BRKXJOKG/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":"2026-08-18T02:02:27Z","links":{"resolver":"https://pith.science/pith/ZQPNBWOBWYGEUCQ2O7BRKXJOKG","bundle":"https://pith.science/pith/ZQPNBWOBWYGEUCQ2O7BRKXJOKG/bundle.json","state":"https://pith.science/pith/ZQPNBWOBWYGEUCQ2O7BRKXJOKG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZQPNBWOBWYGEUCQ2O7BRKXJOKG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:ZQPNBWOBWYGEUCQ2O7BRKXJOKG","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":"c0e12e081adc88ae931e6019bd0c70fb86328a6225c81e4d281b9cdd5a364f3a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-07-11T02:58:28Z","title_canon_sha256":"55e6aa3dd18683a8ccd0f2b6df5960df44f7a8b7a8cd2902f665647bdac9c6d2"},"schema_version":"1.0","source":{"id":"2307.04989","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.04989","created_at":"2026-07-05T06:34:39Z"},{"alias_kind":"arxiv_version","alias_value":"2307.04989v1","created_at":"2026-07-05T06:34:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.04989","created_at":"2026-07-05T06:34:39Z"},{"alias_kind":"pith_short_12","alias_value":"ZQPNBWOBWYGE","created_at":"2026-07-05T06:34:39Z"},{"alias_kind":"pith_short_16","alias_value":"ZQPNBWOBWYGEUCQ2","created_at":"2026-07-05T06:34:39Z"},{"alias_kind":"pith_short_8","alias_value":"ZQPNBWOB","created_at":"2026-07-05T06:34:39Z"}],"graph_snapshots":[{"event_id":"sha256:24e03b580b1bcfba75da24f1021e60b2abeff2f849467d820430c60e0ff32d74","target":"graph","created_at":"2026-07-05T06:34:39Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2307.04989/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study the formation of the TRAPPIST-1 (T1) planets starting shortly after Moon-sized bodies form just exterior to the ice line. Our model includes mass growth from pebble accretion and mergers, fragmentation, type-I migration, and eccentricity and inclination dampening from gas drag. We follow the composition evolution of the planets fed by a dust condensation code that tracks how various dust species condense out of the disc as it cools. We use the final planet compositions to calculate the resulting radii of the planets using a new planet interior structure code and explore various interi","authors_text":"Anna C. Childs, Chao-Chin Yang, Cody Shakespeare, David R. Rice, Jason H. Steffen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-07-11T02:58:28Z","title":"Composition constraints of the TRAPPIST-1 planets from their formation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.04989","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:fc2886a4a7cd847d7c91e9730b21aafd1e2b5c626511ddb078a59ab3d7c00599","target":"record","created_at":"2026-07-05T06:34:39Z","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":"c0e12e081adc88ae931e6019bd0c70fb86328a6225c81e4d281b9cdd5a364f3a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-07-11T02:58:28Z","title_canon_sha256":"55e6aa3dd18683a8ccd0f2b6df5960df44f7a8b7a8cd2902f665647bdac9c6d2"},"schema_version":"1.0","source":{"id":"2307.04989","kind":"arxiv","version":1}},"canonical_sha256":"cc1ed0d9c1b60c4a0a1a77c3155d2e51a1f4501b1951568303b727a07e5cc45f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cc1ed0d9c1b60c4a0a1a77c3155d2e51a1f4501b1951568303b727a07e5cc45f","first_computed_at":"2026-07-05T06:34:39.025605Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:34:39.025605Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6z/tgXzv3lAbOUdsZrjYb+yltKU+R7zJnxkiKiDEkEJktGjl6XmRhW0TYXAC34NDDBkkcetAmzHa9WPlstjLBg==","signature_status":"signed_v1","signed_at":"2026-07-05T06:34:39.025979Z","signed_message":"canonical_sha256_bytes"},"source_id":"2307.04989","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fc2886a4a7cd847d7c91e9730b21aafd1e2b5c626511ddb078a59ab3d7c00599","sha256:24e03b580b1bcfba75da24f1021e60b2abeff2f849467d820430c60e0ff32d74"],"state_sha256":"693ee60c5b1a269c4f4fd70147a8960c4b09ec7cb2901e3c5a453bd2af519e47"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sp+2NHO/KqnN+6JyJGO1nkaiyTRaGJ5TjVs2CVOTW+DOdzF6Vk5GbaZDb1CV05Vic2EbLj9JmTk1T4nI10exAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T02:02:27.731107Z","bundle_sha256":"746a5a3ed658adfa22f75afcf7d582b4e3b5e97826a5b29c13725350c3d38bc1"}}