{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:HS3YGOVJBRMU4DTQYHWWHLMCSM","short_pith_number":"pith:HS3YGOVJ","canonical_record":{"source":{"id":"0707.4645","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-07-31T16:36:29Z","cross_cats_sorted":[],"title_canon_sha256":"40d8fbab901b563ca19b135f16677fa3713d1545f6ea472cfb22b153d7d0d059","abstract_canon_sha256":"b9663cebe9992841a9ac7e328771e6c3a48944b286293271a306874085e43001"},"schema_version":"1.0"},"canonical_sha256":"3cb7833aa90c594e0e70c1ed63ad82932a535e98939de327bc4fca4782849a37","source":{"kind":"arxiv","id":"0707.4645","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0707.4645","created_at":"2026-07-04T17:04:59Z"},{"alias_kind":"arxiv_version","alias_value":"0707.4645v1","created_at":"2026-07-04T17:04:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0707.4645","created_at":"2026-07-04T17:04:59Z"},{"alias_kind":"pith_short_12","alias_value":"HS3YGOVJBRMU","created_at":"2026-07-04T17:04:59Z"},{"alias_kind":"pith_short_16","alias_value":"HS3YGOVJBRMU4DTQ","created_at":"2026-07-04T17:04:59Z"},{"alias_kind":"pith_short_8","alias_value":"HS3YGOVJ","created_at":"2026-07-04T17:04:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:HS3YGOVJBRMU4DTQYHWWHLMCSM","target":"record","payload":{"canonical_record":{"source":{"id":"0707.4645","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-07-31T16:36:29Z","cross_cats_sorted":[],"title_canon_sha256":"40d8fbab901b563ca19b135f16677fa3713d1545f6ea472cfb22b153d7d0d059","abstract_canon_sha256":"b9663cebe9992841a9ac7e328771e6c3a48944b286293271a306874085e43001"},"schema_version":"1.0"},"canonical_sha256":"3cb7833aa90c594e0e70c1ed63ad82932a535e98939de327bc4fca4782849a37","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:04:59.580119Z","signature_b64":"WxSy4rWgcy8wm2pmLYjwni3Vh6ZbUhSlCRuTNIztTbhVMGMS4TrxJv7ETJb7uzS/qPGHW6nV3YIlxvQ5H7I3Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3cb7833aa90c594e0e70c1ed63ad82932a535e98939de327bc4fca4782849a37","last_reissued_at":"2026-07-04T17:04:59.579752Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:04:59.579752Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0707.4645","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":"2026-07-04T17:04:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nSTQhoshxYA/CZSIwDwnNuB1McjdSDhBjpwu7KcRupHDMLq8YkliNragBslE0AMifQolBsyu77mpBJTTwOBwBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-27T17:34:16.609156Z"},"content_sha256":"50826e6f0fb5284ddcff6183749ac3d152be308a003d4783fea2f1eca856027d","schema_version":"1.0","event_id":"sha256:50826e6f0fb5284ddcff6183749ac3d152be308a003d4783fea2f1eca856027d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:HS3YGOVJBRMU4DTQYHWWHLMCSM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"OB Associations, Wolf-Rayet Stars, and the Origin of Galactic Cosmic Rays","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. C. Cummings, E. C. Stone, G. A. de Nolfo, G. Meynet, L. M. Scott, M. Arnould, M. E. Wiedenbeck, M. H. Israel, R. A. Leske, R. A. Mewaldt, S. Goriely, T. T. von Rosenvinge, W. R. Binns","submitted_at":"2007-07-31T16:36:29Z","abstract_excerpt":"We have measured the isotopic abundances of neon and a number of other species in the galactic cosmic rays (GCRs) using the Cosmic Ray Isotope Spectrometer (CRIS) aboard the ACE spacecraft. Our data are compared to recent results from two-component Wolf-Rayet (WR) models. The three largest deviations of galactic cosmic ray isotope ratios from solar-system ratios predicted by these models, 12C/16O, 22Ne/20Ne, and 58Fe/56Fe, are very close to those observed. All of the isotopic ratios that we have measured are consistent with a GCR source consisting of ~20% of WR material mixed with ~80% materia"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0707.4645","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/0707.4645/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T17:04:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"feCZRIkmPv6UhSzGELJuXzU+CpM4g35OSw3NrVAloFSsJVhPsTOLk1Ny2zzogN6Tm40Ok0af/jvfrYoHj6KKCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-27T17:34:16.609558Z"},"content_sha256":"6e842f249ca76802e9b0fc86f13848c5d6c93f93ef116b6ab0166aebb8da01f9","schema_version":"1.0","event_id":"sha256:6e842f249ca76802e9b0fc86f13848c5d6c93f93ef116b6ab0166aebb8da01f9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HS3YGOVJBRMU4DTQYHWWHLMCSM/bundle.json","state_url":"https://pith.science/pith/HS3YGOVJBRMU4DTQYHWWHLMCSM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HS3YGOVJBRMU4DTQYHWWHLMCSM/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":"2026-07-27T17:34:16Z","links":{"resolver":"https://pith.science/pith/HS3YGOVJBRMU4DTQYHWWHLMCSM","bundle":"https://pith.science/pith/HS3YGOVJBRMU4DTQYHWWHLMCSM/bundle.json","state":"https://pith.science/pith/HS3YGOVJBRMU4DTQYHWWHLMCSM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HS3YGOVJBRMU4DTQYHWWHLMCSM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:HS3YGOVJBRMU4DTQYHWWHLMCSM","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":"b9663cebe9992841a9ac7e328771e6c3a48944b286293271a306874085e43001","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-07-31T16:36:29Z","title_canon_sha256":"40d8fbab901b563ca19b135f16677fa3713d1545f6ea472cfb22b153d7d0d059"},"schema_version":"1.0","source":{"id":"0707.4645","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0707.4645","created_at":"2026-07-04T17:04:59Z"},{"alias_kind":"arxiv_version","alias_value":"0707.4645v1","created_at":"2026-07-04T17:04:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0707.4645","created_at":"2026-07-04T17:04:59Z"},{"alias_kind":"pith_short_12","alias_value":"HS3YGOVJBRMU","created_at":"2026-07-04T17:04:59Z"},{"alias_kind":"pith_short_16","alias_value":"HS3YGOVJBRMU4DTQ","created_at":"2026-07-04T17:04:59Z"},{"alias_kind":"pith_short_8","alias_value":"HS3YGOVJ","created_at":"2026-07-04T17:04:59Z"}],"graph_snapshots":[{"event_id":"sha256:6e842f249ca76802e9b0fc86f13848c5d6c93f93ef116b6ab0166aebb8da01f9","target":"graph","created_at":"2026-07-04T17:04:59Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/0707.4645/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We have measured the isotopic abundances of neon and a number of other species in the galactic cosmic rays (GCRs) using the Cosmic Ray Isotope Spectrometer (CRIS) aboard the ACE spacecraft. Our data are compared to recent results from two-component Wolf-Rayet (WR) models. The three largest deviations of galactic cosmic ray isotope ratios from solar-system ratios predicted by these models, 12C/16O, 22Ne/20Ne, and 58Fe/56Fe, are very close to those observed. All of the isotopic ratios that we have measured are consistent with a GCR source consisting of ~20% of WR material mixed with ~80% materia","authors_text":"A. C. Cummings, E. C. Stone, G. A. de Nolfo, G. Meynet, L. M. Scott, M. Arnould, M. E. Wiedenbeck, M. H. Israel, R. A. Leske, R. A. Mewaldt, S. Goriely, T. T. von Rosenvinge, W. R. Binns","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2007-07-31T16:36:29Z","title":"OB Associations, Wolf-Rayet Stars, and the Origin of Galactic Cosmic Rays"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0707.4645","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":"sha256:50826e6f0fb5284ddcff6183749ac3d152be308a003d4783fea2f1eca856027d","target":"record","created_at":"2026-07-04T17:04:59Z","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":"b9663cebe9992841a9ac7e328771e6c3a48944b286293271a306874085e43001","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-07-31T16:36:29Z","title_canon_sha256":"40d8fbab901b563ca19b135f16677fa3713d1545f6ea472cfb22b153d7d0d059"},"schema_version":"1.0","source":{"id":"0707.4645","kind":"arxiv","version":1}},"canonical_sha256":"3cb7833aa90c594e0e70c1ed63ad82932a535e98939de327bc4fca4782849a37","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3cb7833aa90c594e0e70c1ed63ad82932a535e98939de327bc4fca4782849a37","first_computed_at":"2026-07-04T17:04:59.579752Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:04:59.579752Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WxSy4rWgcy8wm2pmLYjwni3Vh6ZbUhSlCRuTNIztTbhVMGMS4TrxJv7ETJb7uzS/qPGHW6nV3YIlxvQ5H7I3Bg==","signature_status":"signed_v1","signed_at":"2026-07-04T17:04:59.580119Z","signed_message":"canonical_sha256_bytes"},"source_id":"0707.4645","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:50826e6f0fb5284ddcff6183749ac3d152be308a003d4783fea2f1eca856027d","sha256:6e842f249ca76802e9b0fc86f13848c5d6c93f93ef116b6ab0166aebb8da01f9"],"state_sha256":"7d79bab24ac82bf115a24cee3013ac7cbb1c6f341c4f8b04db4e2f7fa5bdb12e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2Xt8+SCX5vQGfwi4/dVwR/yfwL8deNYxFmFmNpzMVEZDAy03BKlTV29O6D3HvJzCOq+92+hr5hE41EvduR3dBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-27T17:34:16.611744Z","bundle_sha256":"2b28b38b9a5359475281393a2e0af41d2bb6fac0480b04a0a36709bfbb9bc57f"}}