{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:CAGMPYTDEAIS2GWNLC43RB3FMT","short_pith_number":"pith:CAGMPYTD","canonical_record":{"source":{"id":"2211.05073","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2022-11-09T18:05:48Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"be1e38407509da2a2e6065404a587c2dca42c2ebdf283efcec84a923bad67b2b","abstract_canon_sha256":"9106db1383856c4240d8249d08b195024177c85cb87f81058f1c6154fbb8461c"},"schema_version":"1.0"},"canonical_sha256":"100cc7e26320112d1acd58b9b8876564eda081c3acad3a2b7fba0c4f5257e413","source":{"kind":"arxiv","id":"2211.05073","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2211.05073","created_at":"2026-07-05T06:42:18Z"},{"alias_kind":"arxiv_version","alias_value":"2211.05073v2","created_at":"2026-07-05T06:42:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2211.05073","created_at":"2026-07-05T06:42:18Z"},{"alias_kind":"pith_short_12","alias_value":"CAGMPYTDEAIS","created_at":"2026-07-05T06:42:18Z"},{"alias_kind":"pith_short_16","alias_value":"CAGMPYTDEAIS2GWN","created_at":"2026-07-05T06:42:18Z"},{"alias_kind":"pith_short_8","alias_value":"CAGMPYTD","created_at":"2026-07-05T06:42:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:CAGMPYTDEAIS2GWNLC43RB3FMT","target":"record","payload":{"canonical_record":{"source":{"id":"2211.05073","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2022-11-09T18:05:48Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"be1e38407509da2a2e6065404a587c2dca42c2ebdf283efcec84a923bad67b2b","abstract_canon_sha256":"9106db1383856c4240d8249d08b195024177c85cb87f81058f1c6154fbb8461c"},"schema_version":"1.0"},"canonical_sha256":"100cc7e26320112d1acd58b9b8876564eda081c3acad3a2b7fba0c4f5257e413","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:42:18.089512Z","signature_b64":"0cYV4IUsVTp68aG2ZEplGhxI1ky0IIx7Piucelt3gd2LpkJ5EFZBl1gW6AxRbyn5Fb0V1miqgT7eUQvPFHMXBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"100cc7e26320112d1acd58b9b8876564eda081c3acad3a2b7fba0c4f5257e413","last_reissued_at":"2026-07-05T06:42:18.089102Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:42:18.089102Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2211.05073","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T06:42:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ULRrOsM/9wPVWHB/9GpBg4HqLz1fae4rFB0YqvffsI44nRDlELLfZ57l8CABxIcz942UgAEa3+4OzcvPHIoZCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T09:12:16.942586Z"},"content_sha256":"c8ebf474088d499a1c2b537c824ec29d7f15952a53945fcffffe7e3315374c33","schema_version":"1.0","event_id":"sha256:c8ebf474088d499a1c2b537c824ec29d7f15952a53945fcffffe7e3315374c33"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:CAGMPYTDEAIS2GWNLC43RB3FMT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Axion-pion thermalization rate in unitarized NLO chiral perturbation theory","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"hep-ph","authors_text":"Gioacchino Piazza, Guido Martinelli, Jorge Martin Camalich, Jos\\'e Antonio Oller, Luca Di Luzio","submitted_at":"2022-11-09T18:05:48Z","abstract_excerpt":"We compute the axion-pion scattering $a \\pi \\to \\pi \\pi$, relevant for the axion thermalization rate in the early universe, within unitarized NLO chiral perturbation theory. The latter extends the range of validity of the chiral expansion of axion-pion scattering and thus provides a crucial ingredient for the reliable determination of the relic density of thermal axions, whenever the axion decoupling temperature is below that of the QCD phase transition. Implications for cosmological observables are briefly discussed."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2211.05073","kind":"arxiv","version":2},"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/2211.05073/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":"2026-07-05T06:42:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Mbl04fSh0+oWUJEflu7VvbCSI3ENvggbNJz/MOJZURkNRb62S4fwffG8AqwK3VvDs/Ngbh2uNHQSAWeYDoUmBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T09:12:16.943083Z"},"content_sha256":"44aff1e38f4ebb41876bee0619868c4849f650659553966a044040abde199f19","schema_version":"1.0","event_id":"sha256:44aff1e38f4ebb41876bee0619868c4849f650659553966a044040abde199f19"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CAGMPYTDEAIS2GWNLC43RB3FMT/bundle.json","state_url":"https://pith.science/pith/CAGMPYTDEAIS2GWNLC43RB3FMT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CAGMPYTDEAIS2GWNLC43RB3FMT/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":"2026-08-05T09:12:16Z","links":{"resolver":"https://pith.science/pith/CAGMPYTDEAIS2GWNLC43RB3FMT","bundle":"https://pith.science/pith/CAGMPYTDEAIS2GWNLC43RB3FMT/bundle.json","state":"https://pith.science/pith/CAGMPYTDEAIS2GWNLC43RB3FMT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CAGMPYTDEAIS2GWNLC43RB3FMT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:CAGMPYTDEAIS2GWNLC43RB3FMT","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":"9106db1383856c4240d8249d08b195024177c85cb87f81058f1c6154fbb8461c","cross_cats_sorted":["astro-ph.CO"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2022-11-09T18:05:48Z","title_canon_sha256":"be1e38407509da2a2e6065404a587c2dca42c2ebdf283efcec84a923bad67b2b"},"schema_version":"1.0","source":{"id":"2211.05073","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2211.05073","created_at":"2026-07-05T06:42:18Z"},{"alias_kind":"arxiv_version","alias_value":"2211.05073v2","created_at":"2026-07-05T06:42:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2211.05073","created_at":"2026-07-05T06:42:18Z"},{"alias_kind":"pith_short_12","alias_value":"CAGMPYTDEAIS","created_at":"2026-07-05T06:42:18Z"},{"alias_kind":"pith_short_16","alias_value":"CAGMPYTDEAIS2GWN","created_at":"2026-07-05T06:42:18Z"},{"alias_kind":"pith_short_8","alias_value":"CAGMPYTD","created_at":"2026-07-05T06:42:18Z"}],"graph_snapshots":[{"event_id":"sha256:44aff1e38f4ebb41876bee0619868c4849f650659553966a044040abde199f19","target":"graph","created_at":"2026-07-05T06:42:18Z","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/2211.05073/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We compute the axion-pion scattering $a \\pi \\to \\pi \\pi$, relevant for the axion thermalization rate in the early universe, within unitarized NLO chiral perturbation theory. The latter extends the range of validity of the chiral expansion of axion-pion scattering and thus provides a crucial ingredient for the reliable determination of the relic density of thermal axions, whenever the axion decoupling temperature is below that of the QCD phase transition. Implications for cosmological observables are briefly discussed.","authors_text":"Gioacchino Piazza, Guido Martinelli, Jorge Martin Camalich, Jos\\'e Antonio Oller, Luca Di Luzio","cross_cats":["astro-ph.CO"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2022-11-09T18:05:48Z","title":"Axion-pion thermalization rate in unitarized NLO chiral perturbation theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2211.05073","kind":"arxiv","version":2},"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:c8ebf474088d499a1c2b537c824ec29d7f15952a53945fcffffe7e3315374c33","target":"record","created_at":"2026-07-05T06:42:18Z","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":"9106db1383856c4240d8249d08b195024177c85cb87f81058f1c6154fbb8461c","cross_cats_sorted":["astro-ph.CO"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2022-11-09T18:05:48Z","title_canon_sha256":"be1e38407509da2a2e6065404a587c2dca42c2ebdf283efcec84a923bad67b2b"},"schema_version":"1.0","source":{"id":"2211.05073","kind":"arxiv","version":2}},"canonical_sha256":"100cc7e26320112d1acd58b9b8876564eda081c3acad3a2b7fba0c4f5257e413","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"100cc7e26320112d1acd58b9b8876564eda081c3acad3a2b7fba0c4f5257e413","first_computed_at":"2026-07-05T06:42:18.089102Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:42:18.089102Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0cYV4IUsVTp68aG2ZEplGhxI1ky0IIx7Piucelt3gd2LpkJ5EFZBl1gW6AxRbyn5Fb0V1miqgT7eUQvPFHMXBw==","signature_status":"signed_v1","signed_at":"2026-07-05T06:42:18.089512Z","signed_message":"canonical_sha256_bytes"},"source_id":"2211.05073","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c8ebf474088d499a1c2b537c824ec29d7f15952a53945fcffffe7e3315374c33","sha256:44aff1e38f4ebb41876bee0619868c4849f650659553966a044040abde199f19"],"state_sha256":"ce05194365b6e6d9e4d8d91e7ff33c4d665cf51d22590c2edbc1231f3c68a4e3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"o3BYJr5uI54vVq5toxcovWV+cyD2TqiYyTiO0pN/qZwqfyp2elkQjWO0jkV9mL53+arVAhg/objVksqc2hTaCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T09:12:16.946249Z","bundle_sha256":"55bc6529e26a7ff8320f47308d8d105ac74ae0d5284fb1eb195fc72f3e806016"}}