{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:6JFBWMTBOHE52IXIEN7OV3OESU","short_pith_number":"pith:6JFBWMTB","canonical_record":{"source":{"id":"1107.5096","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-07-26T00:09:22Z","cross_cats_sorted":[],"title_canon_sha256":"56cfea2d59f1303e5dfed75eb094f7d239cb8b2a494b5f07c27fab870999a0ec","abstract_canon_sha256":"753701266a09e407140b9a679e60c0c14e0332e34276364db623e0e01771a355"},"schema_version":"1.0"},"canonical_sha256":"f24a1b326171c9dd22e8237eeaedc49525cec63d7fc57d792df39da8a5062923","source":{"kind":"arxiv","id":"1107.5096","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.5096","created_at":"2026-05-18T02:01:10Z"},{"alias_kind":"arxiv_version","alias_value":"1107.5096v1","created_at":"2026-05-18T02:01:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.5096","created_at":"2026-05-18T02:01:10Z"},{"alias_kind":"pith_short_12","alias_value":"6JFBWMTBOHE5","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_16","alias_value":"6JFBWMTBOHE52IXI","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_8","alias_value":"6JFBWMTB","created_at":"2026-05-18T12:26:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:6JFBWMTBOHE52IXIEN7OV3OESU","target":"record","payload":{"canonical_record":{"source":{"id":"1107.5096","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-07-26T00:09:22Z","cross_cats_sorted":[],"title_canon_sha256":"56cfea2d59f1303e5dfed75eb094f7d239cb8b2a494b5f07c27fab870999a0ec","abstract_canon_sha256":"753701266a09e407140b9a679e60c0c14e0332e34276364db623e0e01771a355"},"schema_version":"1.0"},"canonical_sha256":"f24a1b326171c9dd22e8237eeaedc49525cec63d7fc57d792df39da8a5062923","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:01:10.070393Z","signature_b64":"vHLuemkpjxXRczv9jRVXTtwcus21o5/r6L8n6rpPy7L0/+PLD131F2+AQevkAgkHU6t8Q/vFIoHvRr3TNx2yCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f24a1b326171c9dd22e8237eeaedc49525cec63d7fc57d792df39da8a5062923","last_reissued_at":"2026-05-18T02:01:10.069612Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:01:10.069612Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1107.5096","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":"2026-05-18T02:01:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9oAAtSofMGp27rRqZAOcAoPyHNemWoRfSSVZOIQTiwtjUfTuhAv7qSIv97Tz6qBgkUyxH5v7SGUUWmaPvJOuAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T19:58:02.001163Z"},"content_sha256":"fa6e646c5d127bb2b0c8cf2e8441e5f162f8ba6f8e9d47a67770b510e87b51b1","schema_version":"1.0","event_id":"sha256:fa6e646c5d127bb2b0c8cf2e8441e5f162f8ba6f8e9d47a67770b510e87b51b1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:6JFBWMTBOHE52IXIEN7OV3OESU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"2MASS wide field extinction maps: IV. The Orion, Mon R2, Rosette, and Canis Major star forming regions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Charles Lada, Joao Alves, Marco Lombardi","submitted_at":"2011-07-26T00:09:22Z","abstract_excerpt":"We present a near-infrared extinction map of a large region (approximately 2200 deg^2) covering the Orion, the Monoceros R2, the Rosette, and the Canis Major molecular clouds. We used robust and optimal methods to map the dust column density in the near-infrared (NICER and NICEST) towards ~19 million stars of the Two Micron All Sky Survey (2MASS) point source catalog. Over the relevant regions of the field, we reached a 1-sigma error of 0.03 mag in the K-band extinction with a resolution of 3 arcmin. We measured the cloud distances by comparing the observed density of foreground stars with the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.5096","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":"2026-05-18T02:01:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K/UEFO+GXSuqOVx7DWdNkAfF9iZ80SQ3uvgG5Gbo/ltJh7V+bxNlT11py8Ovigh1q+ppCaEU9GEvOlM5dAOOAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T19:58:02.001885Z"},"content_sha256":"f077308d3441b4d910d27cebc68e85690909b0a2cf32f293be8083b9953e3165","schema_version":"1.0","event_id":"sha256:f077308d3441b4d910d27cebc68e85690909b0a2cf32f293be8083b9953e3165"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6JFBWMTBOHE52IXIEN7OV3OESU/bundle.json","state_url":"https://pith.science/pith/6JFBWMTBOHE52IXIEN7OV3OESU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6JFBWMTBOHE52IXIEN7OV3OESU/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":"2026-06-06T19:58:02Z","links":{"resolver":"https://pith.science/pith/6JFBWMTBOHE52IXIEN7OV3OESU","bundle":"https://pith.science/pith/6JFBWMTBOHE52IXIEN7OV3OESU/bundle.json","state":"https://pith.science/pith/6JFBWMTBOHE52IXIEN7OV3OESU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6JFBWMTBOHE52IXIEN7OV3OESU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:6JFBWMTBOHE52IXIEN7OV3OESU","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":"753701266a09e407140b9a679e60c0c14e0332e34276364db623e0e01771a355","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-07-26T00:09:22Z","title_canon_sha256":"56cfea2d59f1303e5dfed75eb094f7d239cb8b2a494b5f07c27fab870999a0ec"},"schema_version":"1.0","source":{"id":"1107.5096","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.5096","created_at":"2026-05-18T02:01:10Z"},{"alias_kind":"arxiv_version","alias_value":"1107.5096v1","created_at":"2026-05-18T02:01:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.5096","created_at":"2026-05-18T02:01:10Z"},{"alias_kind":"pith_short_12","alias_value":"6JFBWMTBOHE5","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_16","alias_value":"6JFBWMTBOHE52IXI","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_8","alias_value":"6JFBWMTB","created_at":"2026-05-18T12:26:22Z"}],"graph_snapshots":[{"event_id":"sha256:f077308d3441b4d910d27cebc68e85690909b0a2cf32f293be8083b9953e3165","target":"graph","created_at":"2026-05-18T02:01:10Z","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 a near-infrared extinction map of a large region (approximately 2200 deg^2) covering the Orion, the Monoceros R2, the Rosette, and the Canis Major molecular clouds. We used robust and optimal methods to map the dust column density in the near-infrared (NICER and NICEST) towards ~19 million stars of the Two Micron All Sky Survey (2MASS) point source catalog. Over the relevant regions of the field, we reached a 1-sigma error of 0.03 mag in the K-band extinction with a resolution of 3 arcmin. We measured the cloud distances by comparing the observed density of foreground stars with the","authors_text":"Charles Lada, Joao Alves, Marco Lombardi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-07-26T00:09:22Z","title":"2MASS wide field extinction maps: IV. The Orion, Mon R2, Rosette, and Canis Major star forming regions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.5096","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:fa6e646c5d127bb2b0c8cf2e8441e5f162f8ba6f8e9d47a67770b510e87b51b1","target":"record","created_at":"2026-05-18T02:01:10Z","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":"753701266a09e407140b9a679e60c0c14e0332e34276364db623e0e01771a355","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-07-26T00:09:22Z","title_canon_sha256":"56cfea2d59f1303e5dfed75eb094f7d239cb8b2a494b5f07c27fab870999a0ec"},"schema_version":"1.0","source":{"id":"1107.5096","kind":"arxiv","version":1}},"canonical_sha256":"f24a1b326171c9dd22e8237eeaedc49525cec63d7fc57d792df39da8a5062923","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f24a1b326171c9dd22e8237eeaedc49525cec63d7fc57d792df39da8a5062923","first_computed_at":"2026-05-18T02:01:10.069612Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:01:10.069612Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vHLuemkpjxXRczv9jRVXTtwcus21o5/r6L8n6rpPy7L0/+PLD131F2+AQevkAgkHU6t8Q/vFIoHvRr3TNx2yCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:01:10.070393Z","signed_message":"canonical_sha256_bytes"},"source_id":"1107.5096","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fa6e646c5d127bb2b0c8cf2e8441e5f162f8ba6f8e9d47a67770b510e87b51b1","sha256:f077308d3441b4d910d27cebc68e85690909b0a2cf32f293be8083b9953e3165"],"state_sha256":"5ddc6ba5c7b73cec58008edc0469a79408f2285ad1bf6308c0fe709488f0ae02"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NzUHsAYWn/ersynL5PaRl6vNNOvj4Y/2RSkjBFL9zvsi75uuj0LdGXHZfYPGNNCkFF7SrKI2RzZIYckvl+oRAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T19:58:02.006063Z","bundle_sha256":"d1f3563368f6ad59beaa6e57472fb55bc4a6fce892d41024c6ddcd2f55c7358d"}}