{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:LMPB5NV6KU5NR2DHDNTWXIBOGK","short_pith_number":"pith:LMPB5NV6","canonical_record":{"source":{"id":"1501.03763","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-01-15T17:57:44Z","cross_cats_sorted":[],"title_canon_sha256":"78272886089114122202a673451c3fd2b379a30839c7b06ca6d071ffa6a2658d","abstract_canon_sha256":"3e8b4b182f011d25eba08578451ce313503a18e82c4162e9a6a9172be76cd167"},"schema_version":"1.0"},"canonical_sha256":"5b1e1eb6be553ad8e8671b676ba02e32a7c1ed405473a18b72dadb7d55e2048c","source":{"kind":"arxiv","id":"1501.03763","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.03763","created_at":"2026-05-18T01:41:10Z"},{"alias_kind":"arxiv_version","alias_value":"1501.03763v1","created_at":"2026-05-18T01:41:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.03763","created_at":"2026-05-18T01:41:10Z"},{"alias_kind":"pith_short_12","alias_value":"LMPB5NV6KU5N","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"LMPB5NV6KU5NR2DH","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"LMPB5NV6","created_at":"2026-05-18T12:29:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:LMPB5NV6KU5NR2DHDNTWXIBOGK","target":"record","payload":{"canonical_record":{"source":{"id":"1501.03763","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-01-15T17:57:44Z","cross_cats_sorted":[],"title_canon_sha256":"78272886089114122202a673451c3fd2b379a30839c7b06ca6d071ffa6a2658d","abstract_canon_sha256":"3e8b4b182f011d25eba08578451ce313503a18e82c4162e9a6a9172be76cd167"},"schema_version":"1.0"},"canonical_sha256":"5b1e1eb6be553ad8e8671b676ba02e32a7c1ed405473a18b72dadb7d55e2048c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:10.739679Z","signature_b64":"zqWCGa3pKyoll/4QaAICoPIUOaRSKWBedlWySZDVqSJdM0E4VS5RdUd+f/zUqGiXpMeT2aoQg+XWCCoD274UBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5b1e1eb6be553ad8e8671b676ba02e32a7c1ed405473a18b72dadb7d55e2048c","last_reissued_at":"2026-05-18T01:41:10.738972Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:10.738972Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1501.03763","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":"2026-05-18T01:41:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZcSsGMg1XfpRnWXNKKlNQD5MhYOUv9PrTmK4nyxyEKZUpN51Z8yZZz/vcSnEe9iUjyUWgaXRqV9FrfS32K7yCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T01:17:59.488745Z"},"content_sha256":"13f70e4cde282852dde08cadba4384f5be1c0ff73d4eee217750ac9611599d38","schema_version":"1.0","event_id":"sha256:13f70e4cde282852dde08cadba4384f5be1c0ff73d4eee217750ac9611599d38"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:LMPB5NV6KU5NR2DHDNTWXIBOGK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spectroscopic characterization of X-ray emitting young stars associated with the Sh 2-296 nebula","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"B. Fernandes, G. Rojas, J. Gregorio-Hetem, T. Montmerle","submitted_at":"2015-01-15T17:57:44Z","abstract_excerpt":"We studied a sample of stars associated with the Sh 2-296 nebula, part of the reflection nebulae complex in the region of Canis Major (CMa R1). Our sample corresponds to optical counterparts of X-ray sources detected from observations with the XMM-Newton satellite, which revealed dozens of possible low-mass young stars not yet known in this region.\n  A sample of 58 young star candidates were selected based on optical spectral features, mainly H{\\alpha} and lithium lines, observed with multi-objects spectroscopy performed by the Gemini South telescope. Among the candidates, we find 41 confirmed"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.03763","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":"2026-05-18T01:41:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"z7pjPknh7bV613qIP7otn0akuOdJKE2hUbFAqahkY9drAy6WsNieiJX5BVECKUTXifRiR8+a2xe3MiT8kI50BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T01:17:59.489112Z"},"content_sha256":"e95124dc1641be137d40d09cad8901b8270bc380f1d4b0ba88525d2a3dd9e278","schema_version":"1.0","event_id":"sha256:e95124dc1641be137d40d09cad8901b8270bc380f1d4b0ba88525d2a3dd9e278"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LMPB5NV6KU5NR2DHDNTWXIBOGK/bundle.json","state_url":"https://pith.science/pith/LMPB5NV6KU5NR2DHDNTWXIBOGK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LMPB5NV6KU5NR2DHDNTWXIBOGK/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":"2026-06-02T01:17:59Z","links":{"resolver":"https://pith.science/pith/LMPB5NV6KU5NR2DHDNTWXIBOGK","bundle":"https://pith.science/pith/LMPB5NV6KU5NR2DHDNTWXIBOGK/bundle.json","state":"https://pith.science/pith/LMPB5NV6KU5NR2DHDNTWXIBOGK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LMPB5NV6KU5NR2DHDNTWXIBOGK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:LMPB5NV6KU5NR2DHDNTWXIBOGK","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":"3e8b4b182f011d25eba08578451ce313503a18e82c4162e9a6a9172be76cd167","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-01-15T17:57:44Z","title_canon_sha256":"78272886089114122202a673451c3fd2b379a30839c7b06ca6d071ffa6a2658d"},"schema_version":"1.0","source":{"id":"1501.03763","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.03763","created_at":"2026-05-18T01:41:10Z"},{"alias_kind":"arxiv_version","alias_value":"1501.03763v1","created_at":"2026-05-18T01:41:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.03763","created_at":"2026-05-18T01:41:10Z"},{"alias_kind":"pith_short_12","alias_value":"LMPB5NV6KU5N","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"LMPB5NV6KU5NR2DH","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"LMPB5NV6","created_at":"2026-05-18T12:29:29Z"}],"graph_snapshots":[{"event_id":"sha256:e95124dc1641be137d40d09cad8901b8270bc380f1d4b0ba88525d2a3dd9e278","target":"graph","created_at":"2026-05-18T01:41:10Z","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 studied a sample of stars associated with the Sh 2-296 nebula, part of the reflection nebulae complex in the region of Canis Major (CMa R1). Our sample corresponds to optical counterparts of X-ray sources detected from observations with the XMM-Newton satellite, which revealed dozens of possible low-mass young stars not yet known in this region.\n  A sample of 58 young star candidates were selected based on optical spectral features, mainly H{\\alpha} and lithium lines, observed with multi-objects spectroscopy performed by the Gemini South telescope. Among the candidates, we find 41 confirmed","authors_text":"B. Fernandes, G. Rojas, J. Gregorio-Hetem, T. Montmerle","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-01-15T17:57:44Z","title":"Spectroscopic characterization of X-ray emitting young stars associated with the Sh 2-296 nebula"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.03763","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":"sha256:13f70e4cde282852dde08cadba4384f5be1c0ff73d4eee217750ac9611599d38","target":"record","created_at":"2026-05-18T01:41:10Z","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":"3e8b4b182f011d25eba08578451ce313503a18e82c4162e9a6a9172be76cd167","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-01-15T17:57:44Z","title_canon_sha256":"78272886089114122202a673451c3fd2b379a30839c7b06ca6d071ffa6a2658d"},"schema_version":"1.0","source":{"id":"1501.03763","kind":"arxiv","version":1}},"canonical_sha256":"5b1e1eb6be553ad8e8671b676ba02e32a7c1ed405473a18b72dadb7d55e2048c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5b1e1eb6be553ad8e8671b676ba02e32a7c1ed405473a18b72dadb7d55e2048c","first_computed_at":"2026-05-18T01:41:10.738972Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:10.738972Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zqWCGa3pKyoll/4QaAICoPIUOaRSKWBedlWySZDVqSJdM0E4VS5RdUd+f/zUqGiXpMeT2aoQg+XWCCoD274UBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:10.739679Z","signed_message":"canonical_sha256_bytes"},"source_id":"1501.03763","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:13f70e4cde282852dde08cadba4384f5be1c0ff73d4eee217750ac9611599d38","sha256:e95124dc1641be137d40d09cad8901b8270bc380f1d4b0ba88525d2a3dd9e278"],"state_sha256":"d79573a931208d35a75bf6649d0818fc59409909806de72f845e771f40465413"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YhavBUUVAjoA1l8lJ+8+5j5cSn9duFuEq+ABf59VD52iyDaFjaj0yDOHj6Z8FcjQnp+HeepOmCS7w1Sro/pcDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T01:17:59.491115Z","bundle_sha256":"43c3f03ba399d182f0fc3fbab33707ecf37ba5234faa2f7853a1324236ef8d7f"}}