{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:KOVBMQUTKYMPHK4J4FCYERSNMJ","short_pith_number":"pith:KOVBMQUT","canonical_record":{"source":{"id":"0811.1985","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-11-13T18:23:33Z","cross_cats_sorted":[],"title_canon_sha256":"17646bee7a448ef74dc724ab69e65dc7189a82a6b299850c1eff78de7c9d5157","abstract_canon_sha256":"3a189c8bf2c1713e29aa7f196891ba55cbcfb6e6339651f64c2664df95549584"},"schema_version":"1.0"},"canonical_sha256":"53aa1642935618f3ab89e14582464d6245e7d8a3cc64248fbc16c400724b2c8c","source":{"kind":"arxiv","id":"0811.1985","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0811.1985","created_at":"2026-05-18T04:29:25Z"},{"alias_kind":"arxiv_version","alias_value":"0811.1985v3","created_at":"2026-05-18T04:29:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0811.1985","created_at":"2026-05-18T04:29:25Z"},{"alias_kind":"pith_short_12","alias_value":"KOVBMQUTKYMP","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"KOVBMQUTKYMPHK4J","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"KOVBMQUT","created_at":"2026-05-18T12:25:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:KOVBMQUTKYMPHK4J4FCYERSNMJ","target":"record","payload":{"canonical_record":{"source":{"id":"0811.1985","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-11-13T18:23:33Z","cross_cats_sorted":[],"title_canon_sha256":"17646bee7a448ef74dc724ab69e65dc7189a82a6b299850c1eff78de7c9d5157","abstract_canon_sha256":"3a189c8bf2c1713e29aa7f196891ba55cbcfb6e6339651f64c2664df95549584"},"schema_version":"1.0"},"canonical_sha256":"53aa1642935618f3ab89e14582464d6245e7d8a3cc64248fbc16c400724b2c8c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:29:25.180157Z","signature_b64":"orj8GlecFub6Hi7FbXVdTpJFUBVO/kn5nZcao46isEp3RH9xtzMvRfuxaYJsYMc1//ZB7ptjcm4L6RNhkL13Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"53aa1642935618f3ab89e14582464d6245e7d8a3cc64248fbc16c400724b2c8c","last_reissued_at":"2026-05-18T04:29:25.179594Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:29:25.179594Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0811.1985","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:29:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jRs+hRWu3WRj5xLAF+c6tCy9ku6y3aWMXI+JVdOec54V//7jWJkmTaaGCKc7rDAtb72faABMUHGhljbdD/JOCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T01:27:17.204305Z"},"content_sha256":"03706264bb3e4d37a8bdec4e117a0ddb9b48f0e42d7a9360c2366f4b02a11c29","schema_version":"1.0","event_id":"sha256:03706264bb3e4d37a8bdec4e117a0ddb9b48f0e42d7a9360c2366f4b02a11c29"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:KOVBMQUTKYMPHK4J4FCYERSNMJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fomalhaut's Debris Disk and Planet: Constraining the Mass of Fomalhaut b From Disk Morphology","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"E. Chiang (UCB), E. Kite (UCB), J. R. Graham (UCB), M. Clampin (NASA Goddard Space Flight Center), P. Kalas (UCB)","submitted_at":"2008-11-13T18:23:33Z","abstract_excerpt":"Following the optical imaging of the exoplanet candidate Fomalhaut b (Fom b), we present a numerical model of how Fomalhaut's debris disk is gravitationally shaped by an interior planet. The model is simple, adaptable to other debris disks, and can be extended to accommodate multiple planets. If Fom b is the dominant perturber of the belt, then to produce the observed disk morphology it must have a mass < 3 Jupiter masses. If the belt and planet orbits are apsidally aligned, our model predicts a planet mass of 0.5 Jupiter masses. The inner edge of the debris disk at 133 AU lies at the peripher"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0811.1985","kind":"arxiv","version":3},"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":"2026-05-18T04:29:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bnl7b4hB/je0iGwXKHy7hh2DyFx5zVnpAorLmQmbIeTfMppRPCkw+ixO0OF4DkL6D4LHJn4RvdCppoZHlykzAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T01:27:17.204667Z"},"content_sha256":"46ff2b1503925309a0fa196c0f146040953ac160236efb536117d15df0f91196","schema_version":"1.0","event_id":"sha256:46ff2b1503925309a0fa196c0f146040953ac160236efb536117d15df0f91196"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KOVBMQUTKYMPHK4J4FCYERSNMJ/bundle.json","state_url":"https://pith.science/pith/KOVBMQUTKYMPHK4J4FCYERSNMJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KOVBMQUTKYMPHK4J4FCYERSNMJ/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":"2026-06-26T01:27:17Z","links":{"resolver":"https://pith.science/pith/KOVBMQUTKYMPHK4J4FCYERSNMJ","bundle":"https://pith.science/pith/KOVBMQUTKYMPHK4J4FCYERSNMJ/bundle.json","state":"https://pith.science/pith/KOVBMQUTKYMPHK4J4FCYERSNMJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KOVBMQUTKYMPHK4J4FCYERSNMJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:KOVBMQUTKYMPHK4J4FCYERSNMJ","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":"3a189c8bf2c1713e29aa7f196891ba55cbcfb6e6339651f64c2664df95549584","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-11-13T18:23:33Z","title_canon_sha256":"17646bee7a448ef74dc724ab69e65dc7189a82a6b299850c1eff78de7c9d5157"},"schema_version":"1.0","source":{"id":"0811.1985","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0811.1985","created_at":"2026-05-18T04:29:25Z"},{"alias_kind":"arxiv_version","alias_value":"0811.1985v3","created_at":"2026-05-18T04:29:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0811.1985","created_at":"2026-05-18T04:29:25Z"},{"alias_kind":"pith_short_12","alias_value":"KOVBMQUTKYMP","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"KOVBMQUTKYMPHK4J","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"KOVBMQUT","created_at":"2026-05-18T12:25:57Z"}],"graph_snapshots":[{"event_id":"sha256:46ff2b1503925309a0fa196c0f146040953ac160236efb536117d15df0f91196","target":"graph","created_at":"2026-05-18T04:29:25Z","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":"Following the optical imaging of the exoplanet candidate Fomalhaut b (Fom b), we present a numerical model of how Fomalhaut's debris disk is gravitationally shaped by an interior planet. The model is simple, adaptable to other debris disks, and can be extended to accommodate multiple planets. If Fom b is the dominant perturber of the belt, then to produce the observed disk morphology it must have a mass < 3 Jupiter masses. If the belt and planet orbits are apsidally aligned, our model predicts a planet mass of 0.5 Jupiter masses. The inner edge of the debris disk at 133 AU lies at the peripher","authors_text":"E. Chiang (UCB), E. Kite (UCB), J. R. Graham (UCB), M. Clampin (NASA Goddard Space Flight Center), P. Kalas (UCB)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-11-13T18:23:33Z","title":"Fomalhaut's Debris Disk and Planet: Constraining the Mass of Fomalhaut b From Disk Morphology"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0811.1985","kind":"arxiv","version":3},"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":"sha256:03706264bb3e4d37a8bdec4e117a0ddb9b48f0e42d7a9360c2366f4b02a11c29","target":"record","created_at":"2026-05-18T04:29:25Z","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":"3a189c8bf2c1713e29aa7f196891ba55cbcfb6e6339651f64c2664df95549584","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-11-13T18:23:33Z","title_canon_sha256":"17646bee7a448ef74dc724ab69e65dc7189a82a6b299850c1eff78de7c9d5157"},"schema_version":"1.0","source":{"id":"0811.1985","kind":"arxiv","version":3}},"canonical_sha256":"53aa1642935618f3ab89e14582464d6245e7d8a3cc64248fbc16c400724b2c8c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"53aa1642935618f3ab89e14582464d6245e7d8a3cc64248fbc16c400724b2c8c","first_computed_at":"2026-05-18T04:29:25.179594Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:29:25.179594Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"orj8GlecFub6Hi7FbXVdTpJFUBVO/kn5nZcao46isEp3RH9xtzMvRfuxaYJsYMc1//ZB7ptjcm4L6RNhkL13Cg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:29:25.180157Z","signed_message":"canonical_sha256_bytes"},"source_id":"0811.1985","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:03706264bb3e4d37a8bdec4e117a0ddb9b48f0e42d7a9360c2366f4b02a11c29","sha256:46ff2b1503925309a0fa196c0f146040953ac160236efb536117d15df0f91196"],"state_sha256":"74a6f9ac3a2c1f40d311e6a8881e883e5776464063a1411a9a6b48193505b298"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WwCSGnva5OoPpMfYXMe7HbbuT1h/AAN5K/Eo3vqtj52U2g3iaC9ksbeyOTXuopFMnzFy+8qQhJQGYthqF0KLDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-26T01:27:17.206644Z","bundle_sha256":"75211d4de55a5942962c7c04225e6faac78ed3981d171dffbdabb2dedd908d17"}}