{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:ECUOPQNWHIOODHIAYWVCR45D6A","short_pith_number":"pith:ECUOPQNW","canonical_record":{"source":{"id":"2404.18595","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-04-29T11:11:00Z","cross_cats_sorted":[],"title_canon_sha256":"719373065587b1c14284cdbc1733bf6f81bcaff381848d3d704481b2ea0daf92","abstract_canon_sha256":"8bfd44bd7e4d83b6414d338e154f2ff07c3c98ff16219f8c47aca96c12170c40"},"schema_version":"1.0"},"canonical_sha256":"20a8e7c1b63a1ce19d00c5aa28f3a3f0109e6887735e06fbeb3b01fdf454f398","source":{"kind":"arxiv","id":"2404.18595","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2404.18595","created_at":"2026-07-05T08:47:19Z"},{"alias_kind":"arxiv_version","alias_value":"2404.18595v1","created_at":"2026-07-05T08:47:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.18595","created_at":"2026-07-05T08:47:19Z"},{"alias_kind":"pith_short_12","alias_value":"ECUOPQNWHIOO","created_at":"2026-07-05T08:47:19Z"},{"alias_kind":"pith_short_16","alias_value":"ECUOPQNWHIOODHIA","created_at":"2026-07-05T08:47:19Z"},{"alias_kind":"pith_short_8","alias_value":"ECUOPQNW","created_at":"2026-07-05T08:47:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:ECUOPQNWHIOODHIAYWVCR45D6A","target":"record","payload":{"canonical_record":{"source":{"id":"2404.18595","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-04-29T11:11:00Z","cross_cats_sorted":[],"title_canon_sha256":"719373065587b1c14284cdbc1733bf6f81bcaff381848d3d704481b2ea0daf92","abstract_canon_sha256":"8bfd44bd7e4d83b6414d338e154f2ff07c3c98ff16219f8c47aca96c12170c40"},"schema_version":"1.0"},"canonical_sha256":"20a8e7c1b63a1ce19d00c5aa28f3a3f0109e6887735e06fbeb3b01fdf454f398","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:47:19.412477Z","signature_b64":"8oXilM6I/Omk+L4+ZQp6AtLxwJrwfCg+AOuU7fY0Kq9P9xCTSODDDELKhW8PdEs6xiylIE8TF6gNwwc8UjyCCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"20a8e7c1b63a1ce19d00c5aa28f3a3f0109e6887735e06fbeb3b01fdf454f398","last_reissued_at":"2026-07-05T08:47:19.411968Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:47:19.411968Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2404.18595","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":"2026-07-05T08:47:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L6fpC+UYZBmd+s2V3LsXm6Dp7gwrkKez5pkVEq8ZzbiLV5SOQ9TOsUT37jDthB9h2jgOxHpzeRQXERXIZNojBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-25T22:38:45.705130Z"},"content_sha256":"1ee56cb4dae08e49cdc3be06ba5e7d35464eec37f88ea65b105aa9006c94f6e0","schema_version":"1.0","event_id":"sha256:1ee56cb4dae08e49cdc3be06ba5e7d35464eec37f88ea65b105aa9006c94f6e0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:ECUOPQNWHIOODHIAYWVCR45D6A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The population of Galactic supernova remnants in the TeV range","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Constantin Steppa, Dominique Meyer, Kathrin Egberts, Pierre Cristofari, Rowan Batzofin","submitted_at":"2024-04-29T11:11:00Z","abstract_excerpt":"Supernova remnants (SNRs) are likely to be significant sources of cosmic rays up to the knee of the local cosmic-ray (CR) spectrum. They produce gamma-rays in the very-high-energy (VHE) ($E>0.1$ TeV) range via: hadronic interactions with the interstellar medium and leptonic interactions with soft photons. Current observations have lead to the detection of about a dozen of VHE SNRs and future instruments should increase this number. The details of particle acceleration at SNRs, and of the mechanisms producing VHE gamma-rays at SNRs are poorly understood. We aim to study the population of SNRs d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.18595","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/2404.18595/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":"2026-07-05T08:47:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VFMSruaK2TcCF0ntRsL/dWEtV4y84vPvHLBif9v7WN576ffK6Z2p734Fkts2nGu0SMPaQwmp4oJVLdrZHSxAAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-25T22:38:45.705517Z"},"content_sha256":"da5881d5dffda338f7acc7b4c44f86a7096fc08ef7cedc2e2d746d870beff608","schema_version":"1.0","event_id":"sha256:da5881d5dffda338f7acc7b4c44f86a7096fc08ef7cedc2e2d746d870beff608"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ECUOPQNWHIOODHIAYWVCR45D6A/bundle.json","state_url":"https://pith.science/pith/ECUOPQNWHIOODHIAYWVCR45D6A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ECUOPQNWHIOODHIAYWVCR45D6A/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":"2026-07-25T22:38:45Z","links":{"resolver":"https://pith.science/pith/ECUOPQNWHIOODHIAYWVCR45D6A","bundle":"https://pith.science/pith/ECUOPQNWHIOODHIAYWVCR45D6A/bundle.json","state":"https://pith.science/pith/ECUOPQNWHIOODHIAYWVCR45D6A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ECUOPQNWHIOODHIAYWVCR45D6A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:ECUOPQNWHIOODHIAYWVCR45D6A","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":"8bfd44bd7e4d83b6414d338e154f2ff07c3c98ff16219f8c47aca96c12170c40","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-04-29T11:11:00Z","title_canon_sha256":"719373065587b1c14284cdbc1733bf6f81bcaff381848d3d704481b2ea0daf92"},"schema_version":"1.0","source":{"id":"2404.18595","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2404.18595","created_at":"2026-07-05T08:47:19Z"},{"alias_kind":"arxiv_version","alias_value":"2404.18595v1","created_at":"2026-07-05T08:47:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.18595","created_at":"2026-07-05T08:47:19Z"},{"alias_kind":"pith_short_12","alias_value":"ECUOPQNWHIOO","created_at":"2026-07-05T08:47:19Z"},{"alias_kind":"pith_short_16","alias_value":"ECUOPQNWHIOODHIA","created_at":"2026-07-05T08:47:19Z"},{"alias_kind":"pith_short_8","alias_value":"ECUOPQNW","created_at":"2026-07-05T08:47:19Z"}],"graph_snapshots":[{"event_id":"sha256:da5881d5dffda338f7acc7b4c44f86a7096fc08ef7cedc2e2d746d870beff608","target":"graph","created_at":"2026-07-05T08:47:19Z","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/2404.18595/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Supernova remnants (SNRs) are likely to be significant sources of cosmic rays up to the knee of the local cosmic-ray (CR) spectrum. They produce gamma-rays in the very-high-energy (VHE) ($E>0.1$ TeV) range via: hadronic interactions with the interstellar medium and leptonic interactions with soft photons. Current observations have lead to the detection of about a dozen of VHE SNRs and future instruments should increase this number. The details of particle acceleration at SNRs, and of the mechanisms producing VHE gamma-rays at SNRs are poorly understood. We aim to study the population of SNRs d","authors_text":"Constantin Steppa, Dominique Meyer, Kathrin Egberts, Pierre Cristofari, Rowan Batzofin","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-04-29T11:11:00Z","title":"The population of Galactic supernova remnants in the TeV range"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.18595","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":"sha256:1ee56cb4dae08e49cdc3be06ba5e7d35464eec37f88ea65b105aa9006c94f6e0","target":"record","created_at":"2026-07-05T08:47:19Z","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":"8bfd44bd7e4d83b6414d338e154f2ff07c3c98ff16219f8c47aca96c12170c40","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-04-29T11:11:00Z","title_canon_sha256":"719373065587b1c14284cdbc1733bf6f81bcaff381848d3d704481b2ea0daf92"},"schema_version":"1.0","source":{"id":"2404.18595","kind":"arxiv","version":1}},"canonical_sha256":"20a8e7c1b63a1ce19d00c5aa28f3a3f0109e6887735e06fbeb3b01fdf454f398","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"20a8e7c1b63a1ce19d00c5aa28f3a3f0109e6887735e06fbeb3b01fdf454f398","first_computed_at":"2026-07-05T08:47:19.411968Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:47:19.411968Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8oXilM6I/Omk+L4+ZQp6AtLxwJrwfCg+AOuU7fY0Kq9P9xCTSODDDELKhW8PdEs6xiylIE8TF6gNwwc8UjyCCg==","signature_status":"signed_v1","signed_at":"2026-07-05T08:47:19.412477Z","signed_message":"canonical_sha256_bytes"},"source_id":"2404.18595","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1ee56cb4dae08e49cdc3be06ba5e7d35464eec37f88ea65b105aa9006c94f6e0","sha256:da5881d5dffda338f7acc7b4c44f86a7096fc08ef7cedc2e2d746d870beff608"],"state_sha256":"457a036ec1b4a781f0204d7618503e17e18a293762a13f2d2538448a6920dc9b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4+6tLGJdEWetvQvkfpWsZ84+6pCrERaGIXXkKByuWOpX4FeaLmNmPSkOffCe/t1GJHJM+Xj2zrYoABsKSm2QCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-25T22:38:45.707683Z","bundle_sha256":"c9e4da2590b3920645b2add995ba0b48e9478508318d84f98baa4fbc76c63eac"}}