{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:2F76SGENHYEWYNRI7D46MHXZRY","short_pith_number":"pith:2F76SGEN","canonical_record":{"source":{"id":"1102.1983","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-02-09T21:09:25Z","cross_cats_sorted":[],"title_canon_sha256":"8cd0718beff4dd862cb0a99bebe71ab3bfe61391a7c3aa0ce30dfaf0e4a4792f","abstract_canon_sha256":"3e0b4870c8fe5f9a5ffbbdc37ea76ce254015fb0c88e6b791d614af7fe49f8df"},"schema_version":"1.0"},"canonical_sha256":"d17fe9188d3e096c3628f8f9e61ef98e28ce12b982527b69029d2561f04a9d43","source":{"kind":"arxiv","id":"1102.1983","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1102.1983","created_at":"2026-05-18T02:03:14Z"},{"alias_kind":"arxiv_version","alias_value":"1102.1983v1","created_at":"2026-05-18T02:03:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1102.1983","created_at":"2026-05-18T02:03:14Z"},{"alias_kind":"pith_short_12","alias_value":"2F76SGENHYEW","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"2F76SGENHYEWYNRI","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"2F76SGEN","created_at":"2026-05-18T12:26:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:2F76SGENHYEWYNRI7D46MHXZRY","target":"record","payload":{"canonical_record":{"source":{"id":"1102.1983","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-02-09T21:09:25Z","cross_cats_sorted":[],"title_canon_sha256":"8cd0718beff4dd862cb0a99bebe71ab3bfe61391a7c3aa0ce30dfaf0e4a4792f","abstract_canon_sha256":"3e0b4870c8fe5f9a5ffbbdc37ea76ce254015fb0c88e6b791d614af7fe49f8df"},"schema_version":"1.0"},"canonical_sha256":"d17fe9188d3e096c3628f8f9e61ef98e28ce12b982527b69029d2561f04a9d43","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:03:14.635034Z","signature_b64":"mDJLg8ZF9r1/0NrsZjGLrjZ1QKS7ccR3MhkllfOdzRbhSWU80id6v/FTKIBlxWJO2tOrxQoKyWsfPd3q3bFPBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d17fe9188d3e096c3628f8f9e61ef98e28ce12b982527b69029d2561f04a9d43","last_reissued_at":"2026-05-18T02:03:14.634393Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:03:14.634393Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1102.1983","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":"2026-05-18T02:03:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D688xB6WWM/eGPoW2nVYRYSAOp9x5xYE/N3TEEIqKhsUlgoyOxrdKKBXOiNVsLOYLIvlLSHtrnkJIUKaMAC4BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T03:35:03.023276Z"},"content_sha256":"6cc34205c007d076fb8616879547bd1a478b27aa443b24da00ab4125bab153c5","schema_version":"1.0","event_id":"sha256:6cc34205c007d076fb8616879547bd1a478b27aa443b24da00ab4125bab153c5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:2F76SGENHYEWYNRI7D46MHXZRY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Gas and Dust Toward DG Tau B and VV CrA","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Andreas Seifahrt, Andrew J. Kruger, Greg W. Doppmann, Joan R. Najita, John S. Carr, Matthew J. Richter","submitted_at":"2011-02-09T21:09:25Z","abstract_excerpt":"We present findings for DG Tau B and VV CrA, two of the objects observed in our Spitzer IRS project to search for molecular absorption in edge-on disks, along with near-IR spectroscopy of the CO fundamental transitions and mid-IR imaging. While the only gas absorption seen in the Spitzer IRS spectrum toward DG Tau B is CO$_{2}$, we use gas abundances and gas/ice ratios to argue that we are probing regions of the disk that have low organic molecule abundances. This implies the rarity of detecting molecular absorption toward even edge-on disks with Spitzer IRS is a result of high dependence on t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1102.1983","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":"2026-05-18T02:03:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Dh4AnFDyl1j3Y3+hOs/RoBimMpYDm9hMRNorJ0IJjg+NEA3fgeF6tspMqF+Xtag+FgtSSgyWnERjrLw5TS7OBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T03:35:03.023988Z"},"content_sha256":"030cf60234b1740752d7b81313cd17b362a592c366706c1d7fab35270320d056","schema_version":"1.0","event_id":"sha256:030cf60234b1740752d7b81313cd17b362a592c366706c1d7fab35270320d056"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2F76SGENHYEWYNRI7D46MHXZRY/bundle.json","state_url":"https://pith.science/pith/2F76SGENHYEWYNRI7D46MHXZRY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2F76SGENHYEWYNRI7D46MHXZRY/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":"2026-05-26T03:35:03Z","links":{"resolver":"https://pith.science/pith/2F76SGENHYEWYNRI7D46MHXZRY","bundle":"https://pith.science/pith/2F76SGENHYEWYNRI7D46MHXZRY/bundle.json","state":"https://pith.science/pith/2F76SGENHYEWYNRI7D46MHXZRY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2F76SGENHYEWYNRI7D46MHXZRY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:2F76SGENHYEWYNRI7D46MHXZRY","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":"3e0b4870c8fe5f9a5ffbbdc37ea76ce254015fb0c88e6b791d614af7fe49f8df","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-02-09T21:09:25Z","title_canon_sha256":"8cd0718beff4dd862cb0a99bebe71ab3bfe61391a7c3aa0ce30dfaf0e4a4792f"},"schema_version":"1.0","source":{"id":"1102.1983","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1102.1983","created_at":"2026-05-18T02:03:14Z"},{"alias_kind":"arxiv_version","alias_value":"1102.1983v1","created_at":"2026-05-18T02:03:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1102.1983","created_at":"2026-05-18T02:03:14Z"},{"alias_kind":"pith_short_12","alias_value":"2F76SGENHYEW","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"2F76SGENHYEWYNRI","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"2F76SGEN","created_at":"2026-05-18T12:26:18Z"}],"graph_snapshots":[{"event_id":"sha256:030cf60234b1740752d7b81313cd17b362a592c366706c1d7fab35270320d056","target":"graph","created_at":"2026-05-18T02:03:14Z","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"},"paper":{"abstract_excerpt":"We present findings for DG Tau B and VV CrA, two of the objects observed in our Spitzer IRS project to search for molecular absorption in edge-on disks, along with near-IR spectroscopy of the CO fundamental transitions and mid-IR imaging. While the only gas absorption seen in the Spitzer IRS spectrum toward DG Tau B is CO$_{2}$, we use gas abundances and gas/ice ratios to argue that we are probing regions of the disk that have low organic molecule abundances. This implies the rarity of detecting molecular absorption toward even edge-on disks with Spitzer IRS is a result of high dependence on t","authors_text":"Andreas Seifahrt, Andrew J. Kruger, Greg W. Doppmann, Joan R. Najita, John S. Carr, Matthew J. Richter","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-02-09T21:09:25Z","title":"Gas and Dust Toward DG Tau B and VV CrA"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1102.1983","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":"sha256:6cc34205c007d076fb8616879547bd1a478b27aa443b24da00ab4125bab153c5","target":"record","created_at":"2026-05-18T02:03:14Z","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":"3e0b4870c8fe5f9a5ffbbdc37ea76ce254015fb0c88e6b791d614af7fe49f8df","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-02-09T21:09:25Z","title_canon_sha256":"8cd0718beff4dd862cb0a99bebe71ab3bfe61391a7c3aa0ce30dfaf0e4a4792f"},"schema_version":"1.0","source":{"id":"1102.1983","kind":"arxiv","version":1}},"canonical_sha256":"d17fe9188d3e096c3628f8f9e61ef98e28ce12b982527b69029d2561f04a9d43","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d17fe9188d3e096c3628f8f9e61ef98e28ce12b982527b69029d2561f04a9d43","first_computed_at":"2026-05-18T02:03:14.634393Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:03:14.634393Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mDJLg8ZF9r1/0NrsZjGLrjZ1QKS7ccR3MhkllfOdzRbhSWU80id6v/FTKIBlxWJO2tOrxQoKyWsfPd3q3bFPBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:03:14.635034Z","signed_message":"canonical_sha256_bytes"},"source_id":"1102.1983","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6cc34205c007d076fb8616879547bd1a478b27aa443b24da00ab4125bab153c5","sha256:030cf60234b1740752d7b81313cd17b362a592c366706c1d7fab35270320d056"],"state_sha256":"06fd77c0daabfe926256b8afd16497ff895f334419f5fbf9fc55d76c09ee1f25"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+JSAVseujyI8IV90Z7CRL7CG4QVFX/pgukCNlsNRxke/0c10kq0UMeNM+DKsu9bPqwLBcfrMLKMPqAq4r5zABQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T03:35:03.027730Z","bundle_sha256":"ad74eadff85ebed30c0394bc058629440290b17ddcdc8ff3b268d0f61e9bf032"}}