{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2006:JPVUPRGYKCCWYILJRMIR5LPGGK","short_pith_number":"pith:JPVUPRGY","schema_version":"1.0","canonical_sha256":"4beb47c4d850856c21698b111eade6329216077663a513148c341d3019f544be","source":{"kind":"arxiv","id":"astro-ph/0612620","version":1},"attestation_state":"computed","paper":{"title":"Near-Infrared Extinction in The Coalsack Globule 2","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Hiroshi Suto, Koji Murakawa, Koji Sugitani, Motohide Tamura, Ryo Kandori, Shogo Nishiyama, Sho Sasaki, Takahiro Naoi, Tetsuya Nagata, Yasushi Nakajima, Yumiko Oasa","submitted_at":"2006-12-21T06:31:48Z","abstract_excerpt":"We have conducted J, H, and Ks imaging observations for the Coalsack Globule 2 with the SIRIUS infrared camera on the IRSF 1.4 m telescope at SAAO, and determined the color excess ratio, E(J-H)/E(H-Ks). The ratio is determined in the same photometric system as our previous study for the rho Oph and Cha clouds without any color transformation; this enables us to directly compare the near-infrared extinction laws among these regions. The current ratio E(J-H)/E(H-Ks) = 1.91 +- 0.01 for the extinction range 0.5 < E(J-H) <1.8 is significantly larger than the ratios for the rho Oph and Cha clouds (E"},"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":"astro-ph/0612620","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-12-21T06:31:48Z","cross_cats_sorted":[],"title_canon_sha256":"3703e0f7879d52e22c01bf26cca2e428bafd52acfbab2dc9875c7a96a3bd3e6b","abstract_canon_sha256":"01dc8680722eaf0f79e47a2f33708836fe637d9c83c4526b19f2c7cd7b52c304"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:59:53.956619Z","signature_b64":"C4v1E79sYVSZyLUjvlqscKnBwhhQlcGD9u6SPsy1GRRNXoq8swn7JbzEGUh0OXzG4Z6z38ISjclFOm+ub1ZtCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4beb47c4d850856c21698b111eade6329216077663a513148c341d3019f544be","last_reissued_at":"2026-07-04T16:59:53.956185Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:59:53.956185Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Near-Infrared Extinction in The Coalsack Globule 2","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Hiroshi Suto, Koji Murakawa, Koji Sugitani, Motohide Tamura, Ryo Kandori, Shogo Nishiyama, Sho Sasaki, Takahiro Naoi, Tetsuya Nagata, Yasushi Nakajima, Yumiko Oasa","submitted_at":"2006-12-21T06:31:48Z","abstract_excerpt":"We have conducted J, H, and Ks imaging observations for the Coalsack Globule 2 with the SIRIUS infrared camera on the IRSF 1.4 m telescope at SAAO, and determined the color excess ratio, E(J-H)/E(H-Ks). The ratio is determined in the same photometric system as our previous study for the rho Oph and Cha clouds without any color transformation; this enables us to directly compare the near-infrared extinction laws among these regions. The current ratio E(J-H)/E(H-Ks) = 1.91 +- 0.01 for the extinction range 0.5 < E(J-H) <1.8 is significantly larger than the ratios for the rho Oph and Cha clouds (E"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0612620","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0612620/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0612620","created_at":"2026-07-04T16:59:53.956248+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0612620v1","created_at":"2026-07-04T16:59:53.956248+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0612620","created_at":"2026-07-04T16:59:53.956248+00:00"},{"alias_kind":"pith_short_12","alias_value":"JPVUPRGYKCCW","created_at":"2026-07-04T16:59:53.956248+00:00"},{"alias_kind":"pith_short_16","alias_value":"JPVUPRGYKCCWYILJ","created_at":"2026-07-04T16:59:53.956248+00:00"},{"alias_kind":"pith_short_8","alias_value":"JPVUPRGY","created_at":"2026-07-04T16:59:53.956248+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/JPVUPRGYKCCWYILJRMIR5LPGGK","json":"https://pith.science/pith/JPVUPRGYKCCWYILJRMIR5LPGGK.json","graph_json":"https://pith.science/api/pith-number/JPVUPRGYKCCWYILJRMIR5LPGGK/graph.json","events_json":"https://pith.science/api/pith-number/JPVUPRGYKCCWYILJRMIR5LPGGK/events.json","paper":"https://pith.science/paper/JPVUPRGY"},"agent_actions":{"view_html":"https://pith.science/pith/JPVUPRGYKCCWYILJRMIR5LPGGK","download_json":"https://pith.science/pith/JPVUPRGYKCCWYILJRMIR5LPGGK.json","view_paper":"https://pith.science/paper/JPVUPRGY","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0612620&json=true","fetch_graph":"https://pith.science/api/pith-number/JPVUPRGYKCCWYILJRMIR5LPGGK/graph.json","fetch_events":"https://pith.science/api/pith-number/JPVUPRGYKCCWYILJRMIR5LPGGK/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/JPVUPRGYKCCWYILJRMIR5LPGGK/action/timestamp_anchor","attest_storage":"https://pith.science/pith/JPVUPRGYKCCWYILJRMIR5LPGGK/action/storage_attestation","attest_author":"https://pith.science/pith/JPVUPRGYKCCWYILJRMIR5LPGGK/action/author_attestation","sign_citation":"https://pith.science/pith/JPVUPRGYKCCWYILJRMIR5LPGGK/action/citation_signature","submit_replication":"https://pith.science/pith/JPVUPRGYKCCWYILJRMIR5LPGGK/action/replication_record"}},"created_at":"2026-07-04T16:59:53.956248+00:00","updated_at":"2026-07-04T16:59:53.956248+00:00"}