{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:TPBOSOEF2ERJNJ5BT4TBPKWFWE","short_pith_number":"pith:TPBOSOEF","canonical_record":{"source":{"id":"2607.28593","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2026-07-30T17:45:41Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"b47399fc1184b43ddbd4a81032aeb3258d16f75546c30c1dc183a5e66f5aef73","abstract_canon_sha256":"6a311fd7e1be9998a555e412abc29f051d6269322d5d4939345fdfff87aa3e5e"},"schema_version":"1.0"},"canonical_sha256":"9bc2e93885d12296a7a19f2617aac5b1364c7e882bf36e996aa5272bcc5562fd","source":{"kind":"arxiv","id":"2607.28593","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.28593","created_at":"2026-07-31T01:38:58Z"},{"alias_kind":"arxiv_version","alias_value":"2607.28593v1","created_at":"2026-07-31T01:38:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.28593","created_at":"2026-07-31T01:38:58Z"},{"alias_kind":"pith_short_12","alias_value":"TPBOSOEF2ERJ","created_at":"2026-07-31T01:38:58Z"},{"alias_kind":"pith_short_16","alias_value":"TPBOSOEF2ERJNJ5B","created_at":"2026-07-31T01:38:58Z"},{"alias_kind":"pith_short_8","alias_value":"TPBOSOEF","created_at":"2026-07-31T01:38:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:TPBOSOEF2ERJNJ5BT4TBPKWFWE","target":"record","payload":{"canonical_record":{"source":{"id":"2607.28593","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2026-07-30T17:45:41Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"b47399fc1184b43ddbd4a81032aeb3258d16f75546c30c1dc183a5e66f5aef73","abstract_canon_sha256":"6a311fd7e1be9998a555e412abc29f051d6269322d5d4939345fdfff87aa3e5e"},"schema_version":"1.0"},"canonical_sha256":"9bc2e93885d12296a7a19f2617aac5b1364c7e882bf36e996aa5272bcc5562fd","receipt":{"kind":"pith_receipt","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9bc2e93885d12296a7a19f2617aac5b1364c7e882bf36e996aa5272bcc5562fd","last_reissued_at":"2026-07-31T01:38:58.337013Z","signature_status":"unsigned_v0","first_computed_at":"2026-07-31T01:38:58.337013Z"},"source_kind":"arxiv","source_id":"2607.28593","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":"2026-07-31T01:38:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ULTddJi36QOSWiN4VzkAhHcFw+c4bzr76zjKd4kmAXf2D/BLYyMxbjc01rFX73GTMM3A/QylEgM4A7ADNZgVCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T04:52:55.099339Z"},"content_sha256":"888bd2e4c4b501e94987cdeb3ae2701839ef47400fc83550dce82a22c6d98a32","schema_version":"1.0","event_id":"sha256:888bd2e4c4b501e94987cdeb3ae2701839ef47400fc83550dce82a22c6d98a32"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:TPBOSOEF2ERJNJ5BT4TBPKWFWE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Axion Inflation with a Massive Abelian Gauge Field","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph.CO","authors_text":"Alessio Notari, Jos\\'e Jaime Terente D\\'iaz, Ricardo Z. Ferreira","submitted_at":"2026-07-30T17:45:41Z","abstract_excerpt":"An axial coupling between an inflaton and an Abelian gauge field can trigger the tachyonic amplification of one gauge-field helicity. For a massless vector, modes with physical momentum $k/a\\sim |\\xi|H$ are enhanced by approximately $\\exp(\\pi|\\xi|)$, and sufficiently efficient production can provide substantial friction for the homogeneous inflaton. We extend this mechanism to a vector of mass $m$. The instability is present only for $|\\xi|>\\bar m\\equiv m/H$, and in the heavy regime the mode amplitude scales as $\\exp[\\pi(|\\xi|-\\bar m)]$. Because the amplified modes remain well inside the Hubbl"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.28593","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/2607.28593/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":"2026-07-31T01:38:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2Qk/RfedsnxGKbQ6s9VDi6ruUs1KxcyuMPeqsmj8H8otH7xkHn2F+Hmov+Acl17WOSRYwpvRZR1JACRDhHBjCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T04:52:55.099838Z"},"content_sha256":"8a2af35ecd29253a9940209790b1a6662afcd16da40f1248e26845e2c21eee6a","schema_version":"1.0","event_id":"sha256:8a2af35ecd29253a9940209790b1a6662afcd16da40f1248e26845e2c21eee6a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TPBOSOEF2ERJNJ5BT4TBPKWFWE/bundle.json","state_url":"https://pith.science/pith/TPBOSOEF2ERJNJ5BT4TBPKWFWE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TPBOSOEF2ERJNJ5BT4TBPKWFWE/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":"2026-08-03T04:52:55Z","links":{"resolver":"https://pith.science/pith/TPBOSOEF2ERJNJ5BT4TBPKWFWE","bundle":"https://pith.science/pith/TPBOSOEF2ERJNJ5BT4TBPKWFWE/bundle.json","state":"https://pith.science/pith/TPBOSOEF2ERJNJ5BT4TBPKWFWE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TPBOSOEF2ERJNJ5BT4TBPKWFWE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:TPBOSOEF2ERJNJ5BT4TBPKWFWE","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":"6a311fd7e1be9998a555e412abc29f051d6269322d5d4939345fdfff87aa3e5e","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2026-07-30T17:45:41Z","title_canon_sha256":"b47399fc1184b43ddbd4a81032aeb3258d16f75546c30c1dc183a5e66f5aef73"},"schema_version":"1.0","source":{"id":"2607.28593","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.28593","created_at":"2026-07-31T01:38:58Z"},{"alias_kind":"arxiv_version","alias_value":"2607.28593v1","created_at":"2026-07-31T01:38:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.28593","created_at":"2026-07-31T01:38:58Z"},{"alias_kind":"pith_short_12","alias_value":"TPBOSOEF2ERJ","created_at":"2026-07-31T01:38:58Z"},{"alias_kind":"pith_short_16","alias_value":"TPBOSOEF2ERJNJ5B","created_at":"2026-07-31T01:38:58Z"},{"alias_kind":"pith_short_8","alias_value":"TPBOSOEF","created_at":"2026-07-31T01:38:58Z"}],"graph_snapshots":[{"event_id":"sha256:8a2af35ecd29253a9940209790b1a6662afcd16da40f1248e26845e2c21eee6a","target":"graph","created_at":"2026-07-31T01:38:58Z","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/2607.28593/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"An axial coupling between an inflaton and an Abelian gauge field can trigger the tachyonic amplification of one gauge-field helicity. For a massless vector, modes with physical momentum $k/a\\sim |\\xi|H$ are enhanced by approximately $\\exp(\\pi|\\xi|)$, and sufficiently efficient production can provide substantial friction for the homogeneous inflaton. We extend this mechanism to a vector of mass $m$. The instability is present only for $|\\xi|>\\bar m\\equiv m/H$, and in the heavy regime the mode amplitude scales as $\\exp[\\pi(|\\xi|-\\bar m)]$. Because the amplified modes remain well inside the Hubbl","authors_text":"Alessio Notari, Jos\\'e Jaime Terente D\\'iaz, Ricardo Z. Ferreira","cross_cats":["hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2026-07-30T17:45:41Z","title":"Axion Inflation with a Massive Abelian Gauge Field"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.28593","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":"sha256:888bd2e4c4b501e94987cdeb3ae2701839ef47400fc83550dce82a22c6d98a32","target":"record","created_at":"2026-07-31T01:38:58Z","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":"6a311fd7e1be9998a555e412abc29f051d6269322d5d4939345fdfff87aa3e5e","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2026-07-30T17:45:41Z","title_canon_sha256":"b47399fc1184b43ddbd4a81032aeb3258d16f75546c30c1dc183a5e66f5aef73"},"schema_version":"1.0","source":{"id":"2607.28593","kind":"arxiv","version":1}},"canonical_sha256":"9bc2e93885d12296a7a19f2617aac5b1364c7e882bf36e996aa5272bcc5562fd","receipt":{"builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9bc2e93885d12296a7a19f2617aac5b1364c7e882bf36e996aa5272bcc5562fd","first_computed_at":"2026-07-31T01:38:58.337013Z","kind":"pith_receipt","last_reissued_at":"2026-07-31T01:38:58.337013Z","receipt_version":"0.3","signature_status":"unsigned_v0"},"source_id":"2607.28593","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:888bd2e4c4b501e94987cdeb3ae2701839ef47400fc83550dce82a22c6d98a32","sha256:8a2af35ecd29253a9940209790b1a6662afcd16da40f1248e26845e2c21eee6a"],"state_sha256":"0dfcef9fd2d76a269140a56e26c3f2b494f7a9303ccfe875a2dcfebe232cc558"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"msIjAmoCKPAe/noKC/hSgL1I4fUB7S2I11b+pgD09SKfYfa4cJdDDunKUBg+pDqIBcwTAIT5tped/YwJhdapCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T04:52:55.103220Z","bundle_sha256":"ce24119ede31220566de88848372bf69b3ba62d75ecb3e374c66b4c890300ef2"}}