{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:TT5MO2U6XRRJFCAPT46RJH776W","short_pith_number":"pith:TT5MO2U6","canonical_record":{"source":{"id":"2605.14869","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-05-14T14:17:37Z","cross_cats_sorted":[],"title_canon_sha256":"419b9abc6cc67478379bed28ff0513cbc9e9d60d5a020aa63efbd6962def9686","abstract_canon_sha256":"3201db52c145caf46d6af94ed945702c4c7687d529b5e1da9e654913bda1ce0b"},"schema_version":"1.0"},"canonical_sha256":"9cfac76a9ebc6292880f9f3d149ffff59bf2e085b09f6bd803325a1f6a460d18","source":{"kind":"arxiv","id":"2605.14869","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.14869","created_at":"2026-05-17T23:38:56Z"},{"alias_kind":"arxiv_version","alias_value":"2605.14869v1","created_at":"2026-05-17T23:38:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.14869","created_at":"2026-05-17T23:38:56Z"},{"alias_kind":"pith_short_12","alias_value":"TT5MO2U6XRRJ","created_at":"2026-05-18T12:33:37Z"},{"alias_kind":"pith_short_16","alias_value":"TT5MO2U6XRRJFCAP","created_at":"2026-05-18T12:33:37Z"},{"alias_kind":"pith_short_8","alias_value":"TT5MO2U6","created_at":"2026-05-18T12:33:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:TT5MO2U6XRRJFCAPT46RJH776W","target":"record","payload":{"canonical_record":{"source":{"id":"2605.14869","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-05-14T14:17:37Z","cross_cats_sorted":[],"title_canon_sha256":"419b9abc6cc67478379bed28ff0513cbc9e9d60d5a020aa63efbd6962def9686","abstract_canon_sha256":"3201db52c145caf46d6af94ed945702c4c7687d529b5e1da9e654913bda1ce0b"},"schema_version":"1.0"},"canonical_sha256":"9cfac76a9ebc6292880f9f3d149ffff59bf2e085b09f6bd803325a1f6a460d18","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:38:56.158657Z","signature_b64":"zT92aidfM3yuhKcj85GMx6ETrtTLF6T9gMot7X2XlQk+J67AueYbKWOX4cDydrYWOBixOAPDREqJO4h8ovvHCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9cfac76a9ebc6292880f9f3d149ffff59bf2e085b09f6bd803325a1f6a460d18","last_reissued_at":"2026-05-17T23:38:56.157915Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:38:56.157915Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.14869","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":"2026-05-17T23:38:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Pars7MGtXybhEUT7vZpns+02mO2JBfgcR2Nhfn7bFBkOcLeX4hbtJ/q2AEs6S+OP3iOJAPT06eXpC8pYsiN+Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T17:09:50.063231Z"},"content_sha256":"6ea9fbae81b83cb7b668bc7496274eb5f433e66a9f5abeef8689514c5590bc61","schema_version":"1.0","event_id":"sha256:6ea9fbae81b83cb7b668bc7496274eb5f433e66a9f5abeef8689514c5590bc61"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:TT5MO2U6XRRJFCAPT46RJH776W","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Self-confinement of ultra-high-energy nuclei in cosmic filaments: implications for the UHECR spectrum and composition","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Alessandro Cermenati, Carmelo Evoli, Roberto Aloisio","submitted_at":"2026-05-14T14:17:37Z","abstract_excerpt":"The spectrum and composition of ultra-high-energy cosmic rays (UHECRs) suggest that the population dominating above the ankle releases particles with an unusual hard spectrum at low rigidity, below the EV scale. In self-confinement scenarios, such an apparent hardening arises from transport: escaping UHECRs generate magnetic turbulence that delays their own release from the magnetized environments surrounding their sources. We extend the self-confinement scenario based on the non-resonant streaming instability to a mixed nuclear composition. We describe the confinement region with an effective"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.14869","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":"2026-05-17T23:38:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oSq6dMgY0/aq39KDrvIFlphz8OuLODAz6mBYB374ZdK//OB+x95UDKusZkuigH82c6k93DQbkwPJ+pO5HyZtBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T17:09:50.063981Z"},"content_sha256":"02ecea467dc767620bd0927f8791a8f84f35459769b6450d1600d89d616f297b","schema_version":"1.0","event_id":"sha256:02ecea467dc767620bd0927f8791a8f84f35459769b6450d1600d89d616f297b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TT5MO2U6XRRJFCAPT46RJH776W/bundle.json","state_url":"https://pith.science/pith/TT5MO2U6XRRJFCAPT46RJH776W/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TT5MO2U6XRRJFCAPT46RJH776W/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":"2026-06-09T17:09:50Z","links":{"resolver":"https://pith.science/pith/TT5MO2U6XRRJFCAPT46RJH776W","bundle":"https://pith.science/pith/TT5MO2U6XRRJFCAPT46RJH776W/bundle.json","state":"https://pith.science/pith/TT5MO2U6XRRJFCAPT46RJH776W/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TT5MO2U6XRRJFCAPT46RJH776W/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:TT5MO2U6XRRJFCAPT46RJH776W","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":"3201db52c145caf46d6af94ed945702c4c7687d529b5e1da9e654913bda1ce0b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-05-14T14:17:37Z","title_canon_sha256":"419b9abc6cc67478379bed28ff0513cbc9e9d60d5a020aa63efbd6962def9686"},"schema_version":"1.0","source":{"id":"2605.14869","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.14869","created_at":"2026-05-17T23:38:56Z"},{"alias_kind":"arxiv_version","alias_value":"2605.14869v1","created_at":"2026-05-17T23:38:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.14869","created_at":"2026-05-17T23:38:56Z"},{"alias_kind":"pith_short_12","alias_value":"TT5MO2U6XRRJ","created_at":"2026-05-18T12:33:37Z"},{"alias_kind":"pith_short_16","alias_value":"TT5MO2U6XRRJFCAP","created_at":"2026-05-18T12:33:37Z"},{"alias_kind":"pith_short_8","alias_value":"TT5MO2U6","created_at":"2026-05-18T12:33:37Z"}],"graph_snapshots":[{"event_id":"sha256:02ecea467dc767620bd0927f8791a8f84f35459769b6450d1600d89d616f297b","target":"graph","created_at":"2026-05-17T23:38:56Z","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":"The spectrum and composition of ultra-high-energy cosmic rays (UHECRs) suggest that the population dominating above the ankle releases particles with an unusual hard spectrum at low rigidity, below the EV scale. In self-confinement scenarios, such an apparent hardening arises from transport: escaping UHECRs generate magnetic turbulence that delays their own release from the magnetized environments surrounding their sources. We extend the self-confinement scenario based on the non-resonant streaming instability to a mixed nuclear composition. We describe the confinement region with an effective","authors_text":"Alessandro Cermenati, Carmelo Evoli, Roberto Aloisio","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-05-14T14:17:37Z","title":"Self-confinement of ultra-high-energy nuclei in cosmic filaments: implications for the UHECR spectrum and composition"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.14869","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":"sha256:6ea9fbae81b83cb7b668bc7496274eb5f433e66a9f5abeef8689514c5590bc61","target":"record","created_at":"2026-05-17T23:38:56Z","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":"3201db52c145caf46d6af94ed945702c4c7687d529b5e1da9e654913bda1ce0b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-05-14T14:17:37Z","title_canon_sha256":"419b9abc6cc67478379bed28ff0513cbc9e9d60d5a020aa63efbd6962def9686"},"schema_version":"1.0","source":{"id":"2605.14869","kind":"arxiv","version":1}},"canonical_sha256":"9cfac76a9ebc6292880f9f3d149ffff59bf2e085b09f6bd803325a1f6a460d18","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9cfac76a9ebc6292880f9f3d149ffff59bf2e085b09f6bd803325a1f6a460d18","first_computed_at":"2026-05-17T23:38:56.157915Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:38:56.157915Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zT92aidfM3yuhKcj85GMx6ETrtTLF6T9gMot7X2XlQk+J67AueYbKWOX4cDydrYWOBixOAPDREqJO4h8ovvHCg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:38:56.158657Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.14869","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6ea9fbae81b83cb7b668bc7496274eb5f433e66a9f5abeef8689514c5590bc61","sha256:02ecea467dc767620bd0927f8791a8f84f35459769b6450d1600d89d616f297b"],"state_sha256":"62ea88a6398f648ac1db7bcd7c86668f866ac3d24ebbe91ec74bc97557ad951c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TJVLv//95ZA+kqx9r7Fvl5YWqaFVyzf/DIZOv7GwAjAtYcbvw6kH9J2bXCk2o3YqIxZ5UW4Gk1R8JqWSVCJMDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T17:09:50.068151Z","bundle_sha256":"c8be7aece95515d60bdb4f3d5002404425529c3cc8bd85e86859ef7c30c70172"}}