{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:5PVDLQATKKAVFGNS4Q2MUZ7GSZ","short_pith_number":"pith:5PVDLQAT","canonical_record":{"source":{"id":"1909.05015","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-09-11T12:52:36Z","cross_cats_sorted":[],"title_canon_sha256":"3824e683cc3d9c1cb24b06be6f7a1de9a5a86940783cd4fedaa1cfbada1e5faa","abstract_canon_sha256":"a5991061e09f350de0e10cfcece0f34dc058a9c8da9bf27b3bba5b9e0ea9fbb0"},"schema_version":"1.0"},"canonical_sha256":"ebea35c01352815299b2e434ca67e6965fa09b97c7be597d663cc1ca1fea1c61","source":{"kind":"arxiv","id":"1909.05015","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1909.05015","created_at":"2026-07-05T00:17:14Z"},{"alias_kind":"arxiv_version","alias_value":"1909.05015v2","created_at":"2026-07-05T00:17:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1909.05015","created_at":"2026-07-05T00:17:14Z"},{"alias_kind":"pith_short_12","alias_value":"5PVDLQATKKAV","created_at":"2026-07-05T00:17:14Z"},{"alias_kind":"pith_short_16","alias_value":"5PVDLQATKKAVFGNS","created_at":"2026-07-05T00:17:14Z"},{"alias_kind":"pith_short_8","alias_value":"5PVDLQAT","created_at":"2026-07-05T00:17:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:5PVDLQATKKAVFGNS4Q2MUZ7GSZ","target":"record","payload":{"canonical_record":{"source":{"id":"1909.05015","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-09-11T12:52:36Z","cross_cats_sorted":[],"title_canon_sha256":"3824e683cc3d9c1cb24b06be6f7a1de9a5a86940783cd4fedaa1cfbada1e5faa","abstract_canon_sha256":"a5991061e09f350de0e10cfcece0f34dc058a9c8da9bf27b3bba5b9e0ea9fbb0"},"schema_version":"1.0"},"canonical_sha256":"ebea35c01352815299b2e434ca67e6965fa09b97c7be597d663cc1ca1fea1c61","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:17:14.855692Z","signature_b64":"rF5edaqqfJXmzSbIRqhEKbKB45RY7WHss6CUSjniKjXUamNJ0wI15tfy2L9LNKkBTYnMsFzHmXA+ChZAxqPPBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ebea35c01352815299b2e434ca67e6965fa09b97c7be597d663cc1ca1fea1c61","last_reissued_at":"2026-07-05T00:17:14.855293Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:17:14.855293Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1909.05015","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":"2026-07-05T00:17:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"B756d8lVj+Sycozq9zDGeo3M2Iw9TOY29gNvYExQmrLmq1djRh5d9SaZAucit91zcDmEk6UPh3jkQ6N3U0m4Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-21T19:47:53.846560Z"},"content_sha256":"58fac837ae1053ed0be8ef751c45d9490d86b47afb0f7f831fc6d986dcf6cef9","schema_version":"1.0","event_id":"sha256:58fac837ae1053ed0be8ef751c45d9490d86b47afb0f7f831fc6d986dcf6cef9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:5PVDLQATKKAVFGNS4Q2MUZ7GSZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"From grains to pebbles: the influence of size distribution and chemical composition on dust emission properties","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A.P. Jones, I. Jimenez-Serra, L. Verstraete, M. Koehler, N. Ysard","submitted_at":"2019-09-11T12:52:36Z","abstract_excerpt":"The size and composition of dust grains are critical in setting the dynamical, physical and chemical evolution of the media in which they are present. Thanks to facilities such as ALMA and in the future the SKA, their thermal emission in the (sub)mm to cm has become a convenient way to trace grain properties. Our aim is to understand the influence of the grain composition and size distribution on the shape of their SED in dense ISM regions such as molecular clouds, prestellar cores, YSOs and protoplanetary discs. Starting from the optical constants defined in the THEMIS model for amorphous hyd"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1909.05015","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/1909.05015/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":"2026-07-05T00:17:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8frIPkFR470uWz4NAPRwKhpuJI6c8ayKslpeVL5+ltPTJGtil1L8Oh6W0exN2pqUVVFl5U13wQ7gqj9vqAFxCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-21T19:47:53.846940Z"},"content_sha256":"9fd8c0e4942d5fd1eabec5573430ddbce6063e64790e6524d30cbf73f4a6ca63","schema_version":"1.0","event_id":"sha256:9fd8c0e4942d5fd1eabec5573430ddbce6063e64790e6524d30cbf73f4a6ca63"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5PVDLQATKKAVFGNS4Q2MUZ7GSZ/bundle.json","state_url":"https://pith.science/pith/5PVDLQATKKAVFGNS4Q2MUZ7GSZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5PVDLQATKKAVFGNS4Q2MUZ7GSZ/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":"2026-07-21T19:47:53Z","links":{"resolver":"https://pith.science/pith/5PVDLQATKKAVFGNS4Q2MUZ7GSZ","bundle":"https://pith.science/pith/5PVDLQATKKAVFGNS4Q2MUZ7GSZ/bundle.json","state":"https://pith.science/pith/5PVDLQATKKAVFGNS4Q2MUZ7GSZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5PVDLQATKKAVFGNS4Q2MUZ7GSZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:5PVDLQATKKAVFGNS4Q2MUZ7GSZ","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":"a5991061e09f350de0e10cfcece0f34dc058a9c8da9bf27b3bba5b9e0ea9fbb0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-09-11T12:52:36Z","title_canon_sha256":"3824e683cc3d9c1cb24b06be6f7a1de9a5a86940783cd4fedaa1cfbada1e5faa"},"schema_version":"1.0","source":{"id":"1909.05015","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1909.05015","created_at":"2026-07-05T00:17:14Z"},{"alias_kind":"arxiv_version","alias_value":"1909.05015v2","created_at":"2026-07-05T00:17:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1909.05015","created_at":"2026-07-05T00:17:14Z"},{"alias_kind":"pith_short_12","alias_value":"5PVDLQATKKAV","created_at":"2026-07-05T00:17:14Z"},{"alias_kind":"pith_short_16","alias_value":"5PVDLQATKKAVFGNS","created_at":"2026-07-05T00:17:14Z"},{"alias_kind":"pith_short_8","alias_value":"5PVDLQAT","created_at":"2026-07-05T00:17:14Z"}],"graph_snapshots":[{"event_id":"sha256:9fd8c0e4942d5fd1eabec5573430ddbce6063e64790e6524d30cbf73f4a6ca63","target":"graph","created_at":"2026-07-05T00:17:14Z","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/1909.05015/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The size and composition of dust grains are critical in setting the dynamical, physical and chemical evolution of the media in which they are present. Thanks to facilities such as ALMA and in the future the SKA, their thermal emission in the (sub)mm to cm has become a convenient way to trace grain properties. Our aim is to understand the influence of the grain composition and size distribution on the shape of their SED in dense ISM regions such as molecular clouds, prestellar cores, YSOs and protoplanetary discs. Starting from the optical constants defined in the THEMIS model for amorphous hyd","authors_text":"A.P. Jones, I. Jimenez-Serra, L. Verstraete, M. Koehler, N. Ysard","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-09-11T12:52:36Z","title":"From grains to pebbles: the influence of size distribution and chemical composition on dust emission properties"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1909.05015","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":"sha256:58fac837ae1053ed0be8ef751c45d9490d86b47afb0f7f831fc6d986dcf6cef9","target":"record","created_at":"2026-07-05T00:17:14Z","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":"a5991061e09f350de0e10cfcece0f34dc058a9c8da9bf27b3bba5b9e0ea9fbb0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-09-11T12:52:36Z","title_canon_sha256":"3824e683cc3d9c1cb24b06be6f7a1de9a5a86940783cd4fedaa1cfbada1e5faa"},"schema_version":"1.0","source":{"id":"1909.05015","kind":"arxiv","version":2}},"canonical_sha256":"ebea35c01352815299b2e434ca67e6965fa09b97c7be597d663cc1ca1fea1c61","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ebea35c01352815299b2e434ca67e6965fa09b97c7be597d663cc1ca1fea1c61","first_computed_at":"2026-07-05T00:17:14.855293Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:17:14.855293Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rF5edaqqfJXmzSbIRqhEKbKB45RY7WHss6CUSjniKjXUamNJ0wI15tfy2L9LNKkBTYnMsFzHmXA+ChZAxqPPBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:17:14.855692Z","signed_message":"canonical_sha256_bytes"},"source_id":"1909.05015","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:58fac837ae1053ed0be8ef751c45d9490d86b47afb0f7f831fc6d986dcf6cef9","sha256:9fd8c0e4942d5fd1eabec5573430ddbce6063e64790e6524d30cbf73f4a6ca63"],"state_sha256":"fef42a4fc36c0132e3f86e8ca1ff15326cf5f6252b4a3ce7bdd13445cb4bfadd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nSrjohSLQIucqADPO+pqOVg0PUUW1fy+fMw13UeJBlVHyykWvBS42zwk8vl9XbAwOoOo9qFPhK6jptt6ddhODA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-21T19:47:53.849410Z","bundle_sha256":"a94182b732ae177b01f0e7b8a8c5fab99180671df41ff661c1258efa6bc88bfe"}}