{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:RUTLVT63UFFNZEMJP3VUOJTEQQ","short_pith_number":"pith:RUTLVT63","canonical_record":{"source":{"id":"0906.1464","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2009-06-08T11:04:19Z","cross_cats_sorted":[],"title_canon_sha256":"e2522c02e6ccc5948b95c107a2a1882032705fb5c4cba64487e153fee3addfb9","abstract_canon_sha256":"c749121d129515ae91b9f3f6b6a27fbfd7ec722afd2437342e587ed64c10e9da"},"schema_version":"1.0"},"canonical_sha256":"8d26bacfdba14adc91897eeb47266484187021205eda93f0f35ce7f4e4d0f8d9","source":{"kind":"arxiv","id":"0906.1464","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0906.1464","created_at":"2026-07-04T23:53:00Z"},{"alias_kind":"arxiv_version","alias_value":"0906.1464v1","created_at":"2026-07-04T23:53:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0906.1464","created_at":"2026-07-04T23:53:00Z"},{"alias_kind":"pith_short_12","alias_value":"RUTLVT63UFFN","created_at":"2026-07-04T23:53:00Z"},{"alias_kind":"pith_short_16","alias_value":"RUTLVT63UFFNZEMJ","created_at":"2026-07-04T23:53:00Z"},{"alias_kind":"pith_short_8","alias_value":"RUTLVT63","created_at":"2026-07-04T23:53:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:RUTLVT63UFFNZEMJP3VUOJTEQQ","target":"record","payload":{"canonical_record":{"source":{"id":"0906.1464","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2009-06-08T11:04:19Z","cross_cats_sorted":[],"title_canon_sha256":"e2522c02e6ccc5948b95c107a2a1882032705fb5c4cba64487e153fee3addfb9","abstract_canon_sha256":"c749121d129515ae91b9f3f6b6a27fbfd7ec722afd2437342e587ed64c10e9da"},"schema_version":"1.0"},"canonical_sha256":"8d26bacfdba14adc91897eeb47266484187021205eda93f0f35ce7f4e4d0f8d9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:53:00.181883Z","signature_b64":"b48FuXOsKl7eHHCeENU59kxeLT8L1npM945wQsY+u61TSAcy4x37HXPIgyzgRxRKG+7lmM2cAJ4+brMk389YAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8d26bacfdba14adc91897eeb47266484187021205eda93f0f35ce7f4e4d0f8d9","last_reissued_at":"2026-07-04T23:53:00.181460Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:53:00.181460Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0906.1464","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":"2026-07-04T23:53:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"88gukO5Y3/D/s15/sUvMG092xSaAq/BZRWJtHuSd2Q6Fucfrt6U6znRVFWL2POH9rw5RbK4receHZpd80+M9CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T09:24:40.241076Z"},"content_sha256":"b61d7af363b9a4c13c4078ec119511b1757057578b04c5f42644ec0bf2658bb4","schema_version":"1.0","event_id":"sha256:b61d7af363b9a4c13c4078ec119511b1757057578b04c5f42644ec0bf2658bb4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:RUTLVT63UFFNZEMJP3VUOJTEQQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High-statistics study of ${\\boldmath \\eta \\pi^0}$ production in two-photon collisions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"et al. (for the Belle Collaboration), S. Uehara","submitted_at":"2009-06-08T11:04:19Z","abstract_excerpt":"The differential cross section for the process $\\gamma \\gamma \\to \\eta \\pi^0$ has been measured in the kinematic range $0.84 \\GeV < W < 4.0 \\GeV$, $|\\cos \\theta^*|<0.8$, where $W$ and $\\theta^*$ are the energy and $\\pi^0$ (or $\\eta$) scattering angle, respectively, in the $\\gamma\\gamma$ center-of-mass system. The results are based on a 223 fb$^{-1}$ data sample collected with the Belle detector at the KEKB $e^+ e^-$ collider. Clear peaks due to the $a_0(980)$ and $a_2(1320)$ are visible. The differential cross sections are fitted in the energy region $0.9 \\GeV < W < 1.46 \\GeV$ to obtain the pa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0906.1464","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/0906.1464/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":"2026-07-04T23:53:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+Ae/DPF3TZV/O441uEz5lftbaGjiTz2vYvsDrLoHEqVMtYitNOdChS3S/EBLzqz4tp2UPFaCuWMhVva8lGu5CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T09:24:40.241464Z"},"content_sha256":"e2514e4e337da258a49cfc9b00ec53ed9f3b89340e7a4b5a63eff0a1ed42b050","schema_version":"1.0","event_id":"sha256:e2514e4e337da258a49cfc9b00ec53ed9f3b89340e7a4b5a63eff0a1ed42b050"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RUTLVT63UFFNZEMJP3VUOJTEQQ/bundle.json","state_url":"https://pith.science/pith/RUTLVT63UFFNZEMJP3VUOJTEQQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RUTLVT63UFFNZEMJP3VUOJTEQQ/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":"2026-07-07T09:24:40Z","links":{"resolver":"https://pith.science/pith/RUTLVT63UFFNZEMJP3VUOJTEQQ","bundle":"https://pith.science/pith/RUTLVT63UFFNZEMJP3VUOJTEQQ/bundle.json","state":"https://pith.science/pith/RUTLVT63UFFNZEMJP3VUOJTEQQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RUTLVT63UFFNZEMJP3VUOJTEQQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:RUTLVT63UFFNZEMJP3VUOJTEQQ","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":"c749121d129515ae91b9f3f6b6a27fbfd7ec722afd2437342e587ed64c10e9da","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2009-06-08T11:04:19Z","title_canon_sha256":"e2522c02e6ccc5948b95c107a2a1882032705fb5c4cba64487e153fee3addfb9"},"schema_version":"1.0","source":{"id":"0906.1464","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0906.1464","created_at":"2026-07-04T23:53:00Z"},{"alias_kind":"arxiv_version","alias_value":"0906.1464v1","created_at":"2026-07-04T23:53:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0906.1464","created_at":"2026-07-04T23:53:00Z"},{"alias_kind":"pith_short_12","alias_value":"RUTLVT63UFFN","created_at":"2026-07-04T23:53:00Z"},{"alias_kind":"pith_short_16","alias_value":"RUTLVT63UFFNZEMJ","created_at":"2026-07-04T23:53:00Z"},{"alias_kind":"pith_short_8","alias_value":"RUTLVT63","created_at":"2026-07-04T23:53:00Z"}],"graph_snapshots":[{"event_id":"sha256:e2514e4e337da258a49cfc9b00ec53ed9f3b89340e7a4b5a63eff0a1ed42b050","target":"graph","created_at":"2026-07-04T23:53:00Z","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/0906.1464/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The differential cross section for the process $\\gamma \\gamma \\to \\eta \\pi^0$ has been measured in the kinematic range $0.84 \\GeV < W < 4.0 \\GeV$, $|\\cos \\theta^*|<0.8$, where $W$ and $\\theta^*$ are the energy and $\\pi^0$ (or $\\eta$) scattering angle, respectively, in the $\\gamma\\gamma$ center-of-mass system. The results are based on a 223 fb$^{-1}$ data sample collected with the Belle detector at the KEKB $e^+ e^-$ collider. Clear peaks due to the $a_0(980)$ and $a_2(1320)$ are visible. The differential cross sections are fitted in the energy region $0.9 \\GeV < W < 1.46 \\GeV$ to obtain the pa","authors_text":"et al. (for the Belle Collaboration), S. Uehara","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2009-06-08T11:04:19Z","title":"High-statistics study of ${\\boldmath \\eta \\pi^0}$ production in two-photon collisions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0906.1464","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:b61d7af363b9a4c13c4078ec119511b1757057578b04c5f42644ec0bf2658bb4","target":"record","created_at":"2026-07-04T23:53:00Z","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":"c749121d129515ae91b9f3f6b6a27fbfd7ec722afd2437342e587ed64c10e9da","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2009-06-08T11:04:19Z","title_canon_sha256":"e2522c02e6ccc5948b95c107a2a1882032705fb5c4cba64487e153fee3addfb9"},"schema_version":"1.0","source":{"id":"0906.1464","kind":"arxiv","version":1}},"canonical_sha256":"8d26bacfdba14adc91897eeb47266484187021205eda93f0f35ce7f4e4d0f8d9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8d26bacfdba14adc91897eeb47266484187021205eda93f0f35ce7f4e4d0f8d9","first_computed_at":"2026-07-04T23:53:00.181460Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:53:00.181460Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"b48FuXOsKl7eHHCeENU59kxeLT8L1npM945wQsY+u61TSAcy4x37HXPIgyzgRxRKG+7lmM2cAJ4+brMk389YAg==","signature_status":"signed_v1","signed_at":"2026-07-04T23:53:00.181883Z","signed_message":"canonical_sha256_bytes"},"source_id":"0906.1464","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b61d7af363b9a4c13c4078ec119511b1757057578b04c5f42644ec0bf2658bb4","sha256:e2514e4e337da258a49cfc9b00ec53ed9f3b89340e7a4b5a63eff0a1ed42b050"],"state_sha256":"4ed083ee5b9b64f284888546d5491c7387cb86406ad7f6878f0887e4e7713ad0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QuONFcDezAiOwYFFixaVun494sa/oqjNRPlAsYmmUJkB8mjCOh4fFjMLPSokyjsKjcxXcjlzJp+z2DIECreyAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T09:24:40.243798Z","bundle_sha256":"f369b445584b4c3d08da1da78ccee458c26e58dccfec0e10b4f437f6689418be"}}