{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:NTNKP7POXMXJHYRTR6H2NIM3KL","short_pith_number":"pith:NTNKP7PO","canonical_record":{"source":{"id":"1105.5534","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-05-27T11:51:10Z","cross_cats_sorted":[],"title_canon_sha256":"1b148a86cfcbea8686e3522860b41b316896d09e2cf413181620b72b15ec9f87","abstract_canon_sha256":"6b0974a4d4788f5dba98c432743dbbc6c7bca95ecce96e9bccb81075e77a7531"},"schema_version":"1.0"},"canonical_sha256":"6cdaa7fdeebb2e93e2338f8fa6a19b52de03ed63015ee6177090fb2f11075b85","source":{"kind":"arxiv","id":"1105.5534","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.5534","created_at":"2026-05-18T02:01:47Z"},{"alias_kind":"arxiv_version","alias_value":"1105.5534v1","created_at":"2026-05-18T02:01:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.5534","created_at":"2026-05-18T02:01:47Z"},{"alias_kind":"pith_short_12","alias_value":"NTNKP7POXMXJ","created_at":"2026-05-18T12:26:37Z"},{"alias_kind":"pith_short_16","alias_value":"NTNKP7POXMXJHYRT","created_at":"2026-05-18T12:26:37Z"},{"alias_kind":"pith_short_8","alias_value":"NTNKP7PO","created_at":"2026-05-18T12:26:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:NTNKP7POXMXJHYRTR6H2NIM3KL","target":"record","payload":{"canonical_record":{"source":{"id":"1105.5534","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-05-27T11:51:10Z","cross_cats_sorted":[],"title_canon_sha256":"1b148a86cfcbea8686e3522860b41b316896d09e2cf413181620b72b15ec9f87","abstract_canon_sha256":"6b0974a4d4788f5dba98c432743dbbc6c7bca95ecce96e9bccb81075e77a7531"},"schema_version":"1.0"},"canonical_sha256":"6cdaa7fdeebb2e93e2338f8fa6a19b52de03ed63015ee6177090fb2f11075b85","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:01:47.352204Z","signature_b64":"BZ9oSKkgcHVGaVQ88QNG14F3dPF1k7Jpbkap5C/swhv9PNyN2109p718odxT2YsZz2y4L9V7WS92AtBMRI7HCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6cdaa7fdeebb2e93e2338f8fa6a19b52de03ed63015ee6177090fb2f11075b85","last_reissued_at":"2026-05-18T02:01:47.351368Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:01:47.351368Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1105.5534","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":"2026-05-18T02:01:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pZOqCEPDrIJ98vWlYp4iTAsaajve3JYqso4mTXqlIWZ26AhJMJZhp8YXeLiVYFmT+zVRL0cadTrgCKS6GwR5Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T03:54:45.316657Z"},"content_sha256":"7c00d8f7962f75df4172fc9a48dd72bee034f11b5798aa751cb332bc7af277de","schema_version":"1.0","event_id":"sha256:7c00d8f7962f75df4172fc9a48dd72bee034f11b5798aa751cb332bc7af277de"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:NTNKP7POXMXJHYRTR6H2NIM3KL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Evolution of the dust/gas environment around Herbig Ae/Be stars","license":"http://creativecommons.org/licenses/by/3.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Huawei Zhang, Martin Miller, Sheng-Li Qin, Tie Liu, Yuefang Wu","submitted_at":"2011-05-27T11:51:10Z","abstract_excerpt":"With the KOSMA 3-m telescope, 54 Herbig Ae/Be stars were surveyed in CO and $^{13}$CO emission lines. The properties of the stars and their circumstellar environments are studied by fitting the SEDs. The mean line width of $^{13}$CO (2-1) lines of this sample is 1.87 km s$^{-1}$. The average column density of H$_{2}$ is found to be $4.9\\times10^{21}$ cm$^{-2}$ for the stars younger than $10^{6}$ yr, while drops to $2.5\\times10^{21}$ cm$^{-2}$ for those older than $10^{6}$ yr. No significant difference is found among the SEDs of Herbig Ae stars and Herbig Be stars at the same age. The infrared "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.5534","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":"2026-05-18T02:01:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2LpzT7Ujs6Wq+AXJr2FmPwZoDsS5203gSaaWyVvM4axxq1UKWQyDVdoHSwBpfPxdWvKR/lDa1pX/8/VENTxhBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T03:54:45.317290Z"},"content_sha256":"0f1cfd338ae2fa753003efd7fbd53eb1716660b0e1acedf3f5618e224856e0bf","schema_version":"1.0","event_id":"sha256:0f1cfd338ae2fa753003efd7fbd53eb1716660b0e1acedf3f5618e224856e0bf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NTNKP7POXMXJHYRTR6H2NIM3KL/bundle.json","state_url":"https://pith.science/pith/NTNKP7POXMXJHYRTR6H2NIM3KL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NTNKP7POXMXJHYRTR6H2NIM3KL/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":"2026-06-06T03:54:45Z","links":{"resolver":"https://pith.science/pith/NTNKP7POXMXJHYRTR6H2NIM3KL","bundle":"https://pith.science/pith/NTNKP7POXMXJHYRTR6H2NIM3KL/bundle.json","state":"https://pith.science/pith/NTNKP7POXMXJHYRTR6H2NIM3KL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NTNKP7POXMXJHYRTR6H2NIM3KL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:NTNKP7POXMXJHYRTR6H2NIM3KL","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":"6b0974a4d4788f5dba98c432743dbbc6c7bca95ecce96e9bccb81075e77a7531","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-05-27T11:51:10Z","title_canon_sha256":"1b148a86cfcbea8686e3522860b41b316896d09e2cf413181620b72b15ec9f87"},"schema_version":"1.0","source":{"id":"1105.5534","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.5534","created_at":"2026-05-18T02:01:47Z"},{"alias_kind":"arxiv_version","alias_value":"1105.5534v1","created_at":"2026-05-18T02:01:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.5534","created_at":"2026-05-18T02:01:47Z"},{"alias_kind":"pith_short_12","alias_value":"NTNKP7POXMXJ","created_at":"2026-05-18T12:26:37Z"},{"alias_kind":"pith_short_16","alias_value":"NTNKP7POXMXJHYRT","created_at":"2026-05-18T12:26:37Z"},{"alias_kind":"pith_short_8","alias_value":"NTNKP7PO","created_at":"2026-05-18T12:26:37Z"}],"graph_snapshots":[{"event_id":"sha256:0f1cfd338ae2fa753003efd7fbd53eb1716660b0e1acedf3f5618e224856e0bf","target":"graph","created_at":"2026-05-18T02:01:47Z","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":"With the KOSMA 3-m telescope, 54 Herbig Ae/Be stars were surveyed in CO and $^{13}$CO emission lines. The properties of the stars and their circumstellar environments are studied by fitting the SEDs. The mean line width of $^{13}$CO (2-1) lines of this sample is 1.87 km s$^{-1}$. The average column density of H$_{2}$ is found to be $4.9\\times10^{21}$ cm$^{-2}$ for the stars younger than $10^{6}$ yr, while drops to $2.5\\times10^{21}$ cm$^{-2}$ for those older than $10^{6}$ yr. No significant difference is found among the SEDs of Herbig Ae stars and Herbig Be stars at the same age. The infrared ","authors_text":"Huawei Zhang, Martin Miller, Sheng-Li Qin, Tie Liu, Yuefang Wu","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-05-27T11:51:10Z","title":"Evolution of the dust/gas environment around Herbig Ae/Be stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.5534","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":"sha256:7c00d8f7962f75df4172fc9a48dd72bee034f11b5798aa751cb332bc7af277de","target":"record","created_at":"2026-05-18T02:01:47Z","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":"6b0974a4d4788f5dba98c432743dbbc6c7bca95ecce96e9bccb81075e77a7531","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-05-27T11:51:10Z","title_canon_sha256":"1b148a86cfcbea8686e3522860b41b316896d09e2cf413181620b72b15ec9f87"},"schema_version":"1.0","source":{"id":"1105.5534","kind":"arxiv","version":1}},"canonical_sha256":"6cdaa7fdeebb2e93e2338f8fa6a19b52de03ed63015ee6177090fb2f11075b85","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6cdaa7fdeebb2e93e2338f8fa6a19b52de03ed63015ee6177090fb2f11075b85","first_computed_at":"2026-05-18T02:01:47.351368Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:01:47.351368Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BZ9oSKkgcHVGaVQ88QNG14F3dPF1k7Jpbkap5C/swhv9PNyN2109p718odxT2YsZz2y4L9V7WS92AtBMRI7HCg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:01:47.352204Z","signed_message":"canonical_sha256_bytes"},"source_id":"1105.5534","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7c00d8f7962f75df4172fc9a48dd72bee034f11b5798aa751cb332bc7af277de","sha256:0f1cfd338ae2fa753003efd7fbd53eb1716660b0e1acedf3f5618e224856e0bf"],"state_sha256":"f7232fd2a85eddafbbfe7d354888d544b3657b88a66f493f4b9ef5d49dbbb010"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5IyLyLEaS+Gw7fc2xPRnZiyPgeUGqE9R9a8XC8OWeeDlDXCsh4RnDm/dVMai3cy8w3ox/lWzKO+EEoAdG9n2Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T03:54:45.322575Z","bundle_sha256":"62736956b615a702c4229535df054252da3d297b97b25de7153cb1315e16f733"}}