{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:ASCFGXVEZAYTU7DNU7RYNGCAQQ","short_pith_number":"pith:ASCFGXVE","canonical_record":{"source":{"id":"1908.11557","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-08-30T06:32:07Z","cross_cats_sorted":["hep-ex","nucl-ex","nucl-th"],"title_canon_sha256":"8844f1fc1199fba0514f64a81298fe3673b145421edc99ad5c673fd1af472706","abstract_canon_sha256":"0bfb4f369f5e72c5e3ecb87e33a494014d04a1b80c7765583a8b578074ebeabb"},"schema_version":"1.0"},"canonical_sha256":"0484535ea4c8313a7c6da7e386984084143b40e2511de24f08b3f2ca5855a3c7","source":{"kind":"arxiv","id":"1908.11557","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.11557","created_at":"2026-07-05T00:43:36Z"},{"alias_kind":"arxiv_version","alias_value":"1908.11557v2","created_at":"2026-07-05T00:43:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.11557","created_at":"2026-07-05T00:43:36Z"},{"alias_kind":"pith_short_12","alias_value":"ASCFGXVEZAYT","created_at":"2026-07-05T00:43:36Z"},{"alias_kind":"pith_short_16","alias_value":"ASCFGXVEZAYTU7DN","created_at":"2026-07-05T00:43:36Z"},{"alias_kind":"pith_short_8","alias_value":"ASCFGXVE","created_at":"2026-07-05T00:43:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:ASCFGXVEZAYTU7DNU7RYNGCAQQ","target":"record","payload":{"canonical_record":{"source":{"id":"1908.11557","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-08-30T06:32:07Z","cross_cats_sorted":["hep-ex","nucl-ex","nucl-th"],"title_canon_sha256":"8844f1fc1199fba0514f64a81298fe3673b145421edc99ad5c673fd1af472706","abstract_canon_sha256":"0bfb4f369f5e72c5e3ecb87e33a494014d04a1b80c7765583a8b578074ebeabb"},"schema_version":"1.0"},"canonical_sha256":"0484535ea4c8313a7c6da7e386984084143b40e2511de24f08b3f2ca5855a3c7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:43:36.674556Z","signature_b64":"IWGZrk+QudkCuvhMndhN0OHP2d6ZWrOwP5A52pSf20si+2wBBuIYQbDacwQgekmn4tZpzQTFY8b9m6eCAp7zCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0484535ea4c8313a7c6da7e386984084143b40e2511de24f08b3f2ca5855a3c7","last_reissued_at":"2026-07-05T00:43:36.674099Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:43:36.674099Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.11557","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":"2026-07-05T00:43:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/z9+4fKP63inRGw3v1sIWS3GSPRb/k6zsM/3ld2OCLjnlk4aIIggnNj+qNtjT+47Xd5gD+t3blR5blkDi7YkAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T01:02:11.354352Z"},"content_sha256":"766e3839eb39b30e64c35e01d8fc2c8ce67d940ee207551c17dc4bcec537c8df","schema_version":"1.0","event_id":"sha256:766e3839eb39b30e64c35e01d8fc2c8ce67d940ee207551c17dc4bcec537c8df"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:ASCFGXVEZAYTU7DNU7RYNGCAQQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Theoretical interpretation of the $D^+_s \\to \\pi^+ \\pi^0 \\eta$ decay and the nature of $a_0(980)$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","nucl-ex","nucl-th"],"primary_cat":"hep-ph","authors_text":"Eulogio Oset, Ju-Jun Xie, Li-Sheng Geng, Raquel Molina, Wei-Hong Liang","submitted_at":"2019-08-30T06:32:07Z","abstract_excerpt":"In a recent paper \\cite{Ablikim:2019pit}, the BESIII collaboration reported the so-called first observation of pure $W$-annihilation decays $D^+_s \\to a^+_0(980) \\pi^0$ and $D_s^+ \\to a^0_0(980)\\pi^+$. The measured absolute branching fractions are, however, puzzlingly larger than those of other measured pure $W$-annihilation decays by at least one order of magnitude. In addition, the relative phase between the two decay modes is found to be about 180 degrees. In this letter, we show that all these can be easily understood if the $a_0(980)$ is a dynamically generated state from $\\bar{K} K$ and "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.11557","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/1908.11557/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":"2026-07-05T00:43:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"atE7Idhge9q53syVVmWs4MHQettiH4/+sAXwENuNqO6FGSbAOyRa9yGBidlAQTlUpwWOnJx0LIykzxicZMLiBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T01:02:11.354849Z"},"content_sha256":"1ff043d9844cd9a94a1997ac61adcdb4a989dacf3854d01e2b8ac57375a12bfe","schema_version":"1.0","event_id":"sha256:1ff043d9844cd9a94a1997ac61adcdb4a989dacf3854d01e2b8ac57375a12bfe"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ASCFGXVEZAYTU7DNU7RYNGCAQQ/bundle.json","state_url":"https://pith.science/pith/ASCFGXVEZAYTU7DNU7RYNGCAQQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ASCFGXVEZAYTU7DNU7RYNGCAQQ/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":"2026-08-06T01:02:11Z","links":{"resolver":"https://pith.science/pith/ASCFGXVEZAYTU7DNU7RYNGCAQQ","bundle":"https://pith.science/pith/ASCFGXVEZAYTU7DNU7RYNGCAQQ/bundle.json","state":"https://pith.science/pith/ASCFGXVEZAYTU7DNU7RYNGCAQQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ASCFGXVEZAYTU7DNU7RYNGCAQQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:ASCFGXVEZAYTU7DNU7RYNGCAQQ","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":"0bfb4f369f5e72c5e3ecb87e33a494014d04a1b80c7765583a8b578074ebeabb","cross_cats_sorted":["hep-ex","nucl-ex","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-08-30T06:32:07Z","title_canon_sha256":"8844f1fc1199fba0514f64a81298fe3673b145421edc99ad5c673fd1af472706"},"schema_version":"1.0","source":{"id":"1908.11557","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.11557","created_at":"2026-07-05T00:43:36Z"},{"alias_kind":"arxiv_version","alias_value":"1908.11557v2","created_at":"2026-07-05T00:43:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.11557","created_at":"2026-07-05T00:43:36Z"},{"alias_kind":"pith_short_12","alias_value":"ASCFGXVEZAYT","created_at":"2026-07-05T00:43:36Z"},{"alias_kind":"pith_short_16","alias_value":"ASCFGXVEZAYTU7DN","created_at":"2026-07-05T00:43:36Z"},{"alias_kind":"pith_short_8","alias_value":"ASCFGXVE","created_at":"2026-07-05T00:43:36Z"}],"graph_snapshots":[{"event_id":"sha256:1ff043d9844cd9a94a1997ac61adcdb4a989dacf3854d01e2b8ac57375a12bfe","target":"graph","created_at":"2026-07-05T00:43:36Z","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/1908.11557/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In a recent paper \\cite{Ablikim:2019pit}, the BESIII collaboration reported the so-called first observation of pure $W$-annihilation decays $D^+_s \\to a^+_0(980) \\pi^0$ and $D_s^+ \\to a^0_0(980)\\pi^+$. The measured absolute branching fractions are, however, puzzlingly larger than those of other measured pure $W$-annihilation decays by at least one order of magnitude. In addition, the relative phase between the two decay modes is found to be about 180 degrees. In this letter, we show that all these can be easily understood if the $a_0(980)$ is a dynamically generated state from $\\bar{K} K$ and ","authors_text":"Eulogio Oset, Ju-Jun Xie, Li-Sheng Geng, Raquel Molina, Wei-Hong Liang","cross_cats":["hep-ex","nucl-ex","nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-08-30T06:32:07Z","title":"Theoretical interpretation of the $D^+_s \\to \\pi^+ \\pi^0 \\eta$ decay and the nature of $a_0(980)$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.11557","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":"sha256:766e3839eb39b30e64c35e01d8fc2c8ce67d940ee207551c17dc4bcec537c8df","target":"record","created_at":"2026-07-05T00:43:36Z","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":"0bfb4f369f5e72c5e3ecb87e33a494014d04a1b80c7765583a8b578074ebeabb","cross_cats_sorted":["hep-ex","nucl-ex","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-08-30T06:32:07Z","title_canon_sha256":"8844f1fc1199fba0514f64a81298fe3673b145421edc99ad5c673fd1af472706"},"schema_version":"1.0","source":{"id":"1908.11557","kind":"arxiv","version":2}},"canonical_sha256":"0484535ea4c8313a7c6da7e386984084143b40e2511de24f08b3f2ca5855a3c7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0484535ea4c8313a7c6da7e386984084143b40e2511de24f08b3f2ca5855a3c7","first_computed_at":"2026-07-05T00:43:36.674099Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:43:36.674099Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IWGZrk+QudkCuvhMndhN0OHP2d6ZWrOwP5A52pSf20si+2wBBuIYQbDacwQgekmn4tZpzQTFY8b9m6eCAp7zCA==","signature_status":"signed_v1","signed_at":"2026-07-05T00:43:36.674556Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.11557","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:766e3839eb39b30e64c35e01d8fc2c8ce67d940ee207551c17dc4bcec537c8df","sha256:1ff043d9844cd9a94a1997ac61adcdb4a989dacf3854d01e2b8ac57375a12bfe"],"state_sha256":"ac8d7bf2d5c3b55018b11a9f348cce2d31d1f79d7848d8b8b06ee21e17dfe51b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/N2Qc09npJKhSB9mihIMFP1xiKIeZk6ysAVsOns0AuTLiqvqI74WPjaK0ILx8aVjMqaWjg3qwi0n0wUjyk7aBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T01:02:11.358199Z","bundle_sha256":"bf5954a8055f0cb880418b840c40d2b5a6d6949d049dabb21986c6a572326020"}}