{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:QIU3DEVR5JL4EI3VZ4HPQLTKUY","short_pith_number":"pith:QIU3DEVR","canonical_record":{"source":{"id":"hep-ph/0602205","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2006-02-22T16:39:29Z","cross_cats_sorted":[],"title_canon_sha256":"783040ab216a0dc9af67a2e45b8bf8e32953d2a3c04096837fc77c73c1c95f2d","abstract_canon_sha256":"7354f1b8f3bf17ae345d36371f1d24eeb3f690e978ddaee5249c65e5d78a84b0"},"schema_version":"1.0"},"canonical_sha256":"8229b192b1ea57c22375cf0ef82e6aa60f7b76f022f6a003e438223f9b0d1e91","source":{"kind":"arxiv","id":"hep-ph/0602205","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0602205","created_at":"2026-07-04T15:35:34Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0602205v2","created_at":"2026-07-04T15:35:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0602205","created_at":"2026-07-04T15:35:34Z"},{"alias_kind":"pith_short_12","alias_value":"QIU3DEVR5JL4","created_at":"2026-07-04T15:35:34Z"},{"alias_kind":"pith_short_16","alias_value":"QIU3DEVR5JL4EI3V","created_at":"2026-07-04T15:35:34Z"},{"alias_kind":"pith_short_8","alias_value":"QIU3DEVR","created_at":"2026-07-04T15:35:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:QIU3DEVR5JL4EI3VZ4HPQLTKUY","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/0602205","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2006-02-22T16:39:29Z","cross_cats_sorted":[],"title_canon_sha256":"783040ab216a0dc9af67a2e45b8bf8e32953d2a3c04096837fc77c73c1c95f2d","abstract_canon_sha256":"7354f1b8f3bf17ae345d36371f1d24eeb3f690e978ddaee5249c65e5d78a84b0"},"schema_version":"1.0"},"canonical_sha256":"8229b192b1ea57c22375cf0ef82e6aa60f7b76f022f6a003e438223f9b0d1e91","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:35:34.934136Z","signature_b64":"NSfXYvD/d4j2wjCv/ofyaWb0TdC6ekpIRQhE1xNqPu1Mg2EwmMkdu7xkU3BI02cElYHea6nqS0OrMNC5I0KJAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8229b192b1ea57c22375cf0ef82e6aa60f7b76f022f6a003e438223f9b0d1e91","last_reissued_at":"2026-07-04T15:35:34.933713Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:35:34.933713Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/0602205","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":"2026-07-04T15:35:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5SmZ86AslckFXphzkXtyHwGal+gf+chs2RKwlf0dryP788JTy1Ax/6CBqVKUbDi7DCqfsHCUkzB2DUrOlzHlDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T16:56:13.002079Z"},"content_sha256":"2704644a6473d661a4031532d84f68e2e85f46d3fa49d5d18753e9b84f4ffdc4","schema_version":"1.0","event_id":"sha256:2704644a6473d661a4031532d84f68e2e85f46d3fa49d5d18753e9b84f4ffdc4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:QIU3DEVR5JL4EI3VZ4HPQLTKUY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"e+e- --> e+e- pi0 pi0 at Daphne","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A.D. Polosa, F. Nguyen, F. Piccinini","submitted_at":"2006-02-22T16:39:29Z","abstract_excerpt":"The production of the sigma(500) meson in gamma gamma --> pi0 pi0 is studied. In particular, the KLOE data collected during the DAPHNE run at sqrt(s)= 1 GeV are appropriate to this purpose because of the strong reduction of Kaon backgrounds."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0602205","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/hep-ph/0602205/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":"2026-07-04T15:35:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"esgawq4IUHzNBiNO4VyQDDwPoIpRSvBbXh6K2YMglcGUEOTx9FjOGZUDKjDAsDcVQYUhhKJXx7GkS8e1/Q7dDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T16:56:13.002959Z"},"content_sha256":"6c8c12624c83e49b56aa8fce8584cbf1b49355afcd8bc649ad35168510dda748","schema_version":"1.0","event_id":"sha256:6c8c12624c83e49b56aa8fce8584cbf1b49355afcd8bc649ad35168510dda748"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QIU3DEVR5JL4EI3VZ4HPQLTKUY/bundle.json","state_url":"https://pith.science/pith/QIU3DEVR5JL4EI3VZ4HPQLTKUY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QIU3DEVR5JL4EI3VZ4HPQLTKUY/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":"2026-08-12T16:56:13Z","links":{"resolver":"https://pith.science/pith/QIU3DEVR5JL4EI3VZ4HPQLTKUY","bundle":"https://pith.science/pith/QIU3DEVR5JL4EI3VZ4HPQLTKUY/bundle.json","state":"https://pith.science/pith/QIU3DEVR5JL4EI3VZ4HPQLTKUY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QIU3DEVR5JL4EI3VZ4HPQLTKUY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:QIU3DEVR5JL4EI3VZ4HPQLTKUY","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":"7354f1b8f3bf17ae345d36371f1d24eeb3f690e978ddaee5249c65e5d78a84b0","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2006-02-22T16:39:29Z","title_canon_sha256":"783040ab216a0dc9af67a2e45b8bf8e32953d2a3c04096837fc77c73c1c95f2d"},"schema_version":"1.0","source":{"id":"hep-ph/0602205","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0602205","created_at":"2026-07-04T15:35:34Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0602205v2","created_at":"2026-07-04T15:35:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0602205","created_at":"2026-07-04T15:35:34Z"},{"alias_kind":"pith_short_12","alias_value":"QIU3DEVR5JL4","created_at":"2026-07-04T15:35:34Z"},{"alias_kind":"pith_short_16","alias_value":"QIU3DEVR5JL4EI3V","created_at":"2026-07-04T15:35:34Z"},{"alias_kind":"pith_short_8","alias_value":"QIU3DEVR","created_at":"2026-07-04T15:35:34Z"}],"graph_snapshots":[{"event_id":"sha256:6c8c12624c83e49b56aa8fce8584cbf1b49355afcd8bc649ad35168510dda748","target":"graph","created_at":"2026-07-04T15:35:34Z","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/hep-ph/0602205/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The production of the sigma(500) meson in gamma gamma --> pi0 pi0 is studied. In particular, the KLOE data collected during the DAPHNE run at sqrt(s)= 1 GeV are appropriate to this purpose because of the strong reduction of Kaon backgrounds.","authors_text":"A.D. Polosa, F. Nguyen, F. Piccinini","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"2006-02-22T16:39:29Z","title":"e+e- --> e+e- pi0 pi0 at Daphne"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0602205","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":"sha256:2704644a6473d661a4031532d84f68e2e85f46d3fa49d5d18753e9b84f4ffdc4","target":"record","created_at":"2026-07-04T15:35:34Z","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":"7354f1b8f3bf17ae345d36371f1d24eeb3f690e978ddaee5249c65e5d78a84b0","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2006-02-22T16:39:29Z","title_canon_sha256":"783040ab216a0dc9af67a2e45b8bf8e32953d2a3c04096837fc77c73c1c95f2d"},"schema_version":"1.0","source":{"id":"hep-ph/0602205","kind":"arxiv","version":2}},"canonical_sha256":"8229b192b1ea57c22375cf0ef82e6aa60f7b76f022f6a003e438223f9b0d1e91","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8229b192b1ea57c22375cf0ef82e6aa60f7b76f022f6a003e438223f9b0d1e91","first_computed_at":"2026-07-04T15:35:34.933713Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:35:34.933713Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NSfXYvD/d4j2wjCv/ofyaWb0TdC6ekpIRQhE1xNqPu1Mg2EwmMkdu7xkU3BI02cElYHea6nqS0OrMNC5I0KJAQ==","signature_status":"signed_v1","signed_at":"2026-07-04T15:35:34.934136Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/0602205","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2704644a6473d661a4031532d84f68e2e85f46d3fa49d5d18753e9b84f4ffdc4","sha256:6c8c12624c83e49b56aa8fce8584cbf1b49355afcd8bc649ad35168510dda748"],"state_sha256":"bd3b14bfd1ea7d5b868809a68ed230792db6ac2ef9947a022299d42759e01579"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bh8/NUMtuVOvMmxG3F6NlIgFYe9iVEvNEu8auBGsdDnZ8u1d4P5AXVltthuKlPJFIpDh6d3Xh5gERs4fO+XODw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-12T16:56:13.016656Z","bundle_sha256":"18daaf83c58e3b49cb6425631d284e7ac691edf0fc1bd3087b2e56019070098a"}}