{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:2PPLBF6IN747TTFULWHHLEWZ2X","short_pith_number":"pith:2PPLBF6I","schema_version":"1.0","canonical_sha256":"d3deb097c86ff9f9ccb45d8e7592d9d5f67586d156568d062c3e958dc4b72c2a","source":{"kind":"arxiv","id":"1101.0514","version":1},"attestation_state":"computed","paper":{"title":"Evolution of PAHs in protoplanetary disks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Inga Kamp","submitted_at":"2011-01-03T13:06:46Z","abstract_excerpt":"Depending on whom you ask, PAHs are either the smallest dust particles or the largest gas-phase molecules in space. Whether referred to as gas or dust, these PAHs can contain up to 20% of the total cosmic carbon abundance and as such also play an important role in the carbon chemistry of protoplanetary disks. The interpretation of PAH bands is often a complex procedure involving not only gas physics to determine their ionization stage and temperature, but also radiative transfer effects that can bury these bands in a strong thermal continuum from a population of larger dust particles.\n  PAHs a"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1101.0514","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-01-03T13:06:46Z","cross_cats_sorted":[],"title_canon_sha256":"99eb947875de80dbddb17553248200c8c11bec65864bc73cb04b5b5e1bdbc331","abstract_canon_sha256":"0438504140a471fd708575676ec748324253f9b44159ad120c79870dbf896997"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:04:13.901219Z","signature_b64":"RwQBZgQYWh9ma7bktUjk77d0YhbGneQc3EyEw2SALrguKk8OoOpGq4JpTUd2w+4WMKaNUG4Roiy/ZBcrPNLUBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d3deb097c86ff9f9ccb45d8e7592d9d5f67586d156568d062c3e958dc4b72c2a","last_reissued_at":"2026-05-18T02:04:13.900383Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:04:13.900383Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Evolution of PAHs in protoplanetary disks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Inga Kamp","submitted_at":"2011-01-03T13:06:46Z","abstract_excerpt":"Depending on whom you ask, PAHs are either the smallest dust particles or the largest gas-phase molecules in space. Whether referred to as gas or dust, these PAHs can contain up to 20% of the total cosmic carbon abundance and as such also play an important role in the carbon chemistry of protoplanetary disks. The interpretation of PAH bands is often a complex procedure involving not only gas physics to determine their ionization stage and temperature, but also radiative transfer effects that can bury these bands in a strong thermal continuum from a population of larger dust particles.\n  PAHs a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.0514","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1101.0514","created_at":"2026-05-18T02:04:13.900518+00:00"},{"alias_kind":"arxiv_version","alias_value":"1101.0514v1","created_at":"2026-05-18T02:04:13.900518+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.0514","created_at":"2026-05-18T02:04:13.900518+00:00"},{"alias_kind":"pith_short_12","alias_value":"2PPLBF6IN747","created_at":"2026-05-18T12:26:18.847500+00:00"},{"alias_kind":"pith_short_16","alias_value":"2PPLBF6IN747TTFU","created_at":"2026-05-18T12:26:18.847500+00:00"},{"alias_kind":"pith_short_8","alias_value":"2PPLBF6I","created_at":"2026-05-18T12:26:18.847500+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/2PPLBF6IN747TTFULWHHLEWZ2X","json":"https://pith.science/pith/2PPLBF6IN747TTFULWHHLEWZ2X.json","graph_json":"https://pith.science/api/pith-number/2PPLBF6IN747TTFULWHHLEWZ2X/graph.json","events_json":"https://pith.science/api/pith-number/2PPLBF6IN747TTFULWHHLEWZ2X/events.json","paper":"https://pith.science/paper/2PPLBF6I"},"agent_actions":{"view_html":"https://pith.science/pith/2PPLBF6IN747TTFULWHHLEWZ2X","download_json":"https://pith.science/pith/2PPLBF6IN747TTFULWHHLEWZ2X.json","view_paper":"https://pith.science/paper/2PPLBF6I","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1101.0514&json=true","fetch_graph":"https://pith.science/api/pith-number/2PPLBF6IN747TTFULWHHLEWZ2X/graph.json","fetch_events":"https://pith.science/api/pith-number/2PPLBF6IN747TTFULWHHLEWZ2X/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/2PPLBF6IN747TTFULWHHLEWZ2X/action/timestamp_anchor","attest_storage":"https://pith.science/pith/2PPLBF6IN747TTFULWHHLEWZ2X/action/storage_attestation","attest_author":"https://pith.science/pith/2PPLBF6IN747TTFULWHHLEWZ2X/action/author_attestation","sign_citation":"https://pith.science/pith/2PPLBF6IN747TTFULWHHLEWZ2X/action/citation_signature","submit_replication":"https://pith.science/pith/2PPLBF6IN747TTFULWHHLEWZ2X/action/replication_record"}},"created_at":"2026-05-18T02:04:13.900518+00:00","updated_at":"2026-05-18T02:04:13.900518+00:00"}