{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:TM2GELKBYL4DE5D72C667ON35A","short_pith_number":"pith:TM2GELKB","canonical_record":{"source":{"id":"1512.04949","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-12-15T21:00:04Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"ae8d9f195fd649b2ff951975c2446e79a7e82c921a12e51c9606ecfb0c4d0213","abstract_canon_sha256":"091e58ae3ae7e4cbf7d24acec02b8d4c04b93ec4d05541c411202dd9af143190"},"schema_version":"1.0"},"canonical_sha256":"9b34622d41c2f832747fd0bdefb9bbe820ed0cd3f3f105b6cb4827d4199e14d3","source":{"kind":"arxiv","id":"1512.04949","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.04949","created_at":"2026-05-18T01:23:02Z"},{"alias_kind":"arxiv_version","alias_value":"1512.04949v1","created_at":"2026-05-18T01:23:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.04949","created_at":"2026-05-18T01:23:02Z"},{"alias_kind":"pith_short_12","alias_value":"TM2GELKBYL4D","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_16","alias_value":"TM2GELKBYL4DE5D7","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_8","alias_value":"TM2GELKB","created_at":"2026-05-18T12:29:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:TM2GELKBYL4DE5D72C667ON35A","target":"record","payload":{"canonical_record":{"source":{"id":"1512.04949","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-12-15T21:00:04Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"ae8d9f195fd649b2ff951975c2446e79a7e82c921a12e51c9606ecfb0c4d0213","abstract_canon_sha256":"091e58ae3ae7e4cbf7d24acec02b8d4c04b93ec4d05541c411202dd9af143190"},"schema_version":"1.0"},"canonical_sha256":"9b34622d41c2f832747fd0bdefb9bbe820ed0cd3f3f105b6cb4827d4199e14d3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:23:02.238577Z","signature_b64":"Ow/bawBAeeG+DLrbQ4tPvJxhSELgnhJlJelXcokwW0LBbaHhICjE/DvhluURZQIbGL22roH2cjh45hQ+A/xGCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9b34622d41c2f832747fd0bdefb9bbe820ed0cd3f3f105b6cb4827d4199e14d3","last_reissued_at":"2026-05-18T01:23:02.237933Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:23:02.237933Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1512.04949","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":"2026-05-18T01:23:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VrIWkbec21Afdn7ZR9gi1l7jkXp5sG0PhbwgvE50MBH+yHmEFI2g8Y8tRGTgKWvQmRMminY6s6GKjL6on9U+DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T09:21:58.328709Z"},"content_sha256":"b5c68ba87c45def0d124ade4148b68ba24ee6c992e90776abddcdce2208c4be8","schema_version":"1.0","event_id":"sha256:b5c68ba87c45def0d124ade4148b68ba24ee6c992e90776abddcdce2208c4be8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:TM2GELKBYL4DE5D72C667ON35A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An M Dwarf Companion and Its Induced Spiral Arms in the HD 100453 Protoplanetary Disk","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Eugene Chiang, Jeffrey Fung, Kevin Wagner, Roman Rafikov, Ruobing Dong, Zhaohuan Zhu","submitted_at":"2015-12-15T21:00:04Z","abstract_excerpt":"Recent VLT/SPHERE near-infrared imaging observations revealed two spiral arms with a near m=2 rotational symmetry in the protoplanetary disk around the ~1.7 solar mass Herbig star HD 100453. A ~0.3 solar mass M dwarf companion, HD 100453 B, was also identified at a projected separation of 120 AU from the primary. In this Letter, we carry out hydrodynamic and radiative transfer simulations to examine the scattered light morphology of the HD 100453 disk as perturbed by the companion on a circular and coplanar orbit. We find that the companion truncates the disk at ~45 AU in scattered light image"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.04949","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":"2026-05-18T01:23:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0Rozcst42+Yb1AyTwhlFaqvjFzXIrM5xw2/eoO7qqlFv3yswRkI5ONF6IV1uXWtw8ZrD7e4aVQJwer4kfL4zDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T09:21:58.329365Z"},"content_sha256":"a3c7c1af69115c54804cc0e7326cc964417577d21fdb47001475bf60655d268e","schema_version":"1.0","event_id":"sha256:a3c7c1af69115c54804cc0e7326cc964417577d21fdb47001475bf60655d268e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TM2GELKBYL4DE5D72C667ON35A/bundle.json","state_url":"https://pith.science/pith/TM2GELKBYL4DE5D72C667ON35A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TM2GELKBYL4DE5D72C667ON35A/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":"2026-05-30T09:21:58Z","links":{"resolver":"https://pith.science/pith/TM2GELKBYL4DE5D72C667ON35A","bundle":"https://pith.science/pith/TM2GELKBYL4DE5D72C667ON35A/bundle.json","state":"https://pith.science/pith/TM2GELKBYL4DE5D72C667ON35A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TM2GELKBYL4DE5D72C667ON35A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:TM2GELKBYL4DE5D72C667ON35A","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":"091e58ae3ae7e4cbf7d24acec02b8d4c04b93ec4d05541c411202dd9af143190","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-12-15T21:00:04Z","title_canon_sha256":"ae8d9f195fd649b2ff951975c2446e79a7e82c921a12e51c9606ecfb0c4d0213"},"schema_version":"1.0","source":{"id":"1512.04949","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.04949","created_at":"2026-05-18T01:23:02Z"},{"alias_kind":"arxiv_version","alias_value":"1512.04949v1","created_at":"2026-05-18T01:23:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.04949","created_at":"2026-05-18T01:23:02Z"},{"alias_kind":"pith_short_12","alias_value":"TM2GELKBYL4D","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_16","alias_value":"TM2GELKBYL4DE5D7","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_8","alias_value":"TM2GELKB","created_at":"2026-05-18T12:29:42Z"}],"graph_snapshots":[{"event_id":"sha256:a3c7c1af69115c54804cc0e7326cc964417577d21fdb47001475bf60655d268e","target":"graph","created_at":"2026-05-18T01:23:02Z","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":"Recent VLT/SPHERE near-infrared imaging observations revealed two spiral arms with a near m=2 rotational symmetry in the protoplanetary disk around the ~1.7 solar mass Herbig star HD 100453. A ~0.3 solar mass M dwarf companion, HD 100453 B, was also identified at a projected separation of 120 AU from the primary. In this Letter, we carry out hydrodynamic and radiative transfer simulations to examine the scattered light morphology of the HD 100453 disk as perturbed by the companion on a circular and coplanar orbit. We find that the companion truncates the disk at ~45 AU in scattered light image","authors_text":"Eugene Chiang, Jeffrey Fung, Kevin Wagner, Roman Rafikov, Ruobing Dong, Zhaohuan Zhu","cross_cats":["astro-ph.EP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-12-15T21:00:04Z","title":"An M Dwarf Companion and Its Induced Spiral Arms in the HD 100453 Protoplanetary Disk"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.04949","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:b5c68ba87c45def0d124ade4148b68ba24ee6c992e90776abddcdce2208c4be8","target":"record","created_at":"2026-05-18T01:23:02Z","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":"091e58ae3ae7e4cbf7d24acec02b8d4c04b93ec4d05541c411202dd9af143190","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-12-15T21:00:04Z","title_canon_sha256":"ae8d9f195fd649b2ff951975c2446e79a7e82c921a12e51c9606ecfb0c4d0213"},"schema_version":"1.0","source":{"id":"1512.04949","kind":"arxiv","version":1}},"canonical_sha256":"9b34622d41c2f832747fd0bdefb9bbe820ed0cd3f3f105b6cb4827d4199e14d3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9b34622d41c2f832747fd0bdefb9bbe820ed0cd3f3f105b6cb4827d4199e14d3","first_computed_at":"2026-05-18T01:23:02.237933Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:23:02.237933Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ow/bawBAeeG+DLrbQ4tPvJxhSELgnhJlJelXcokwW0LBbaHhICjE/DvhluURZQIbGL22roH2cjh45hQ+A/xGCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:23:02.238577Z","signed_message":"canonical_sha256_bytes"},"source_id":"1512.04949","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b5c68ba87c45def0d124ade4148b68ba24ee6c992e90776abddcdce2208c4be8","sha256:a3c7c1af69115c54804cc0e7326cc964417577d21fdb47001475bf60655d268e"],"state_sha256":"4b42f4ce6610d65cd56e418fa8d01de0d2a7b87fcf38637b883c1f310286efa4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r8i73MVmGDeeXZ+FbuxwzEQ6RVggDiAYxc0HvXAkPsNUx2/VXx4JcCs6Hg1c7SzMBRYKNk2R9k6+Y1R6f2JwCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T09:21:58.332462Z","bundle_sha256":"0fdfb270623bd0008fe834c07e1daa352173f6b5823a01dcc35a49fccae520d2"}}