{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:4HZSC6EB7CUG3MDXRGEKOULOBY","short_pith_number":"pith:4HZSC6EB","canonical_record":{"source":{"id":"1510.01878","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-10-07T10:05:45Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"665d0bc6ad8ff365a39fbd9100bfb7af453e0a24e1a8a7bc327e6c9392602ee0","abstract_canon_sha256":"87cf800897967c7378f5ffdc7fc1a49d3eb0a1436d10bc6a824bfaf7da582659"},"schema_version":"1.0"},"canonical_sha256":"e1f3217881f8a86db0778988a7516e0e0e678ecba27139c7b568e2950422a6b7","source":{"kind":"arxiv","id":"1510.01878","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.01878","created_at":"2026-05-18T01:30:50Z"},{"alias_kind":"arxiv_version","alias_value":"1510.01878v1","created_at":"2026-05-18T01:30:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.01878","created_at":"2026-05-18T01:30:50Z"},{"alias_kind":"pith_short_12","alias_value":"4HZSC6EB7CUG","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_16","alias_value":"4HZSC6EB7CUG3MDX","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_8","alias_value":"4HZSC6EB","created_at":"2026-05-18T12:29:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:4HZSC6EB7CUG3MDXRGEKOULOBY","target":"record","payload":{"canonical_record":{"source":{"id":"1510.01878","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-10-07T10:05:45Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"665d0bc6ad8ff365a39fbd9100bfb7af453e0a24e1a8a7bc327e6c9392602ee0","abstract_canon_sha256":"87cf800897967c7378f5ffdc7fc1a49d3eb0a1436d10bc6a824bfaf7da582659"},"schema_version":"1.0"},"canonical_sha256":"e1f3217881f8a86db0778988a7516e0e0e678ecba27139c7b568e2950422a6b7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:30:50.138143Z","signature_b64":"o53iVtxAkb8m0EikvNLO5ffS+4FJ6WHGdBX1Tgo/zds6/PLiJAufpEzmb3jd+/cKy5oeBKSRdQ2Q/jQr9LFcBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e1f3217881f8a86db0778988a7516e0e0e678ecba27139c7b568e2950422a6b7","last_reissued_at":"2026-05-18T01:30:50.137727Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:30:50.137727Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1510.01878","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":"2026-05-18T01:30:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"01Nh0oU6S+T+wth0tzYB3zGU23R6JdXW3mjiMiHDe1fCpdf6OmCDPDGRVu9VOBmOrOuWbKkpCeKoVBPXvGb3Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-02T06:59:59.068481Z"},"content_sha256":"5ede5850c0c1523e9c68c6b3317b971ff0b0a4d329a60c0f27b429744c434715","schema_version":"1.0","event_id":"sha256:5ede5850c0c1523e9c68c6b3317b971ff0b0a4d329a60c0f27b429744c434715"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:4HZSC6EB7CUG3MDXRGEKOULOBY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Cosmic ray antiprotons and the Single Source model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.HE","authors_text":"Anatoly Erlykin, Arnold Wolfendale","submitted_at":"2015-10-07T10:05:45Z","abstract_excerpt":"In view of the fact that the AMS-02 instrument has recently been used to make preliminary observations of the ratio of the antiprotons (\\-{P}) to protons (P) in the primary cosmic radiation we have returned to our idea of signatures of a local recent supernova. We find that at the present level of accuracy there is no inconsistency between our predictions for the \\-{P}/P ratio to some hundreds of GeV using the preliminary observations."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.01878","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":"2026-05-18T01:30:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sNiY0Mt67bF7h4l5RQhVw7FUFBOhewBHhO26muYumP2Dr3K2uqNN5cZICIEp1wyMQk+3UTbIzLUTTpJbRItxBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-02T06:59:59.069067Z"},"content_sha256":"72592d5ede92717409a76870f050e209d21b6ae9fc57b5a564fd1bab35e2ab11","schema_version":"1.0","event_id":"sha256:72592d5ede92717409a76870f050e209d21b6ae9fc57b5a564fd1bab35e2ab11"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4HZSC6EB7CUG3MDXRGEKOULOBY/bundle.json","state_url":"https://pith.science/pith/4HZSC6EB7CUG3MDXRGEKOULOBY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4HZSC6EB7CUG3MDXRGEKOULOBY/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":"2026-07-02T06:59:59Z","links":{"resolver":"https://pith.science/pith/4HZSC6EB7CUG3MDXRGEKOULOBY","bundle":"https://pith.science/pith/4HZSC6EB7CUG3MDXRGEKOULOBY/bundle.json","state":"https://pith.science/pith/4HZSC6EB7CUG3MDXRGEKOULOBY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4HZSC6EB7CUG3MDXRGEKOULOBY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:4HZSC6EB7CUG3MDXRGEKOULOBY","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":"87cf800897967c7378f5ffdc7fc1a49d3eb0a1436d10bc6a824bfaf7da582659","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-10-07T10:05:45Z","title_canon_sha256":"665d0bc6ad8ff365a39fbd9100bfb7af453e0a24e1a8a7bc327e6c9392602ee0"},"schema_version":"1.0","source":{"id":"1510.01878","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.01878","created_at":"2026-05-18T01:30:50Z"},{"alias_kind":"arxiv_version","alias_value":"1510.01878v1","created_at":"2026-05-18T01:30:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.01878","created_at":"2026-05-18T01:30:50Z"},{"alias_kind":"pith_short_12","alias_value":"4HZSC6EB7CUG","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_16","alias_value":"4HZSC6EB7CUG3MDX","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_8","alias_value":"4HZSC6EB","created_at":"2026-05-18T12:29:05Z"}],"graph_snapshots":[{"event_id":"sha256:72592d5ede92717409a76870f050e209d21b6ae9fc57b5a564fd1bab35e2ab11","target":"graph","created_at":"2026-05-18T01:30:50Z","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":"In view of the fact that the AMS-02 instrument has recently been used to make preliminary observations of the ratio of the antiprotons (\\-{P}) to protons (P) in the primary cosmic radiation we have returned to our idea of signatures of a local recent supernova. We find that at the present level of accuracy there is no inconsistency between our predictions for the \\-{P}/P ratio to some hundreds of GeV using the preliminary observations.","authors_text":"Anatoly Erlykin, Arnold Wolfendale","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-10-07T10:05:45Z","title":"Cosmic ray antiprotons and the Single Source model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.01878","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":"sha256:5ede5850c0c1523e9c68c6b3317b971ff0b0a4d329a60c0f27b429744c434715","target":"record","created_at":"2026-05-18T01:30:50Z","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":"87cf800897967c7378f5ffdc7fc1a49d3eb0a1436d10bc6a824bfaf7da582659","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-10-07T10:05:45Z","title_canon_sha256":"665d0bc6ad8ff365a39fbd9100bfb7af453e0a24e1a8a7bc327e6c9392602ee0"},"schema_version":"1.0","source":{"id":"1510.01878","kind":"arxiv","version":1}},"canonical_sha256":"e1f3217881f8a86db0778988a7516e0e0e678ecba27139c7b568e2950422a6b7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e1f3217881f8a86db0778988a7516e0e0e678ecba27139c7b568e2950422a6b7","first_computed_at":"2026-05-18T01:30:50.137727Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:30:50.137727Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"o53iVtxAkb8m0EikvNLO5ffS+4FJ6WHGdBX1Tgo/zds6/PLiJAufpEzmb3jd+/cKy5oeBKSRdQ2Q/jQr9LFcBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:30:50.138143Z","signed_message":"canonical_sha256_bytes"},"source_id":"1510.01878","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5ede5850c0c1523e9c68c6b3317b971ff0b0a4d329a60c0f27b429744c434715","sha256:72592d5ede92717409a76870f050e209d21b6ae9fc57b5a564fd1bab35e2ab11"],"state_sha256":"39e50d79d58026041934d1e724728447ef054ad309a3e688d5aa98af57ee2eff"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RrbEe1MjwrSlKFgfy5ad8xmVDpLVhbRgve4E8Pf97RG2hj6iyE9bMptS8znu6ouTiZBJVERLbXYS5yE07FE9AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-02T06:59:59.071310Z","bundle_sha256":"f0f13a5d30d85b4be57d172d057fe56e7b387574fea12bf18412425e768122b4"}}