{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:3L6Z54XLLDCPK32CNHK4AZ52DO","short_pith_number":"pith:3L6Z54XL","canonical_record":{"source":{"id":"0706.3026","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-lat","submitted_at":"2007-06-20T17:01:45Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"029fd07a80bc0586b5addb8a3fdd6555132d668563fac637fe0bc509e357f587","abstract_canon_sha256":"9ef282677f6167943b181b4cfa99d4749625d6648dad9343cc08646cf0df2060"},"schema_version":"1.0"},"canonical_sha256":"dafd9ef2eb58c4f56f4269d5c067ba1bafe78f7ebce37516821a8b44ecd30b53","source":{"kind":"arxiv","id":"0706.3026","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0706.3026","created_at":"2026-07-04T15:24:20Z"},{"alias_kind":"arxiv_version","alias_value":"0706.3026v1","created_at":"2026-07-04T15:24:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0706.3026","created_at":"2026-07-04T15:24:20Z"},{"alias_kind":"pith_short_12","alias_value":"3L6Z54XLLDCP","created_at":"2026-07-04T15:24:20Z"},{"alias_kind":"pith_short_16","alias_value":"3L6Z54XLLDCPK32C","created_at":"2026-07-04T15:24:20Z"},{"alias_kind":"pith_short_8","alias_value":"3L6Z54XL","created_at":"2026-07-04T15:24:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:3L6Z54XLLDCPK32CNHK4AZ52DO","target":"record","payload":{"canonical_record":{"source":{"id":"0706.3026","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-lat","submitted_at":"2007-06-20T17:01:45Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"029fd07a80bc0586b5addb8a3fdd6555132d668563fac637fe0bc509e357f587","abstract_canon_sha256":"9ef282677f6167943b181b4cfa99d4749625d6648dad9343cc08646cf0df2060"},"schema_version":"1.0"},"canonical_sha256":"dafd9ef2eb58c4f56f4269d5c067ba1bafe78f7ebce37516821a8b44ecd30b53","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:24:20.956951Z","signature_b64":"xxVPcdASEE04vTqVwAKpNm3SgwJX+LZn6oxLUqPRLbuTZFigkjqpYZbX6Ox4IDJ5nc3jJmkRfFIkKlAvj4QaAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dafd9ef2eb58c4f56f4269d5c067ba1bafe78f7ebce37516821a8b44ecd30b53","last_reissued_at":"2026-07-04T15:24:20.956477Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:24:20.956477Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0706.3026","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":"2026-07-04T15:24:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+PPd9GVMSlM1Oly6UOtvXtgVxn7b0/S7Ld1+YsGPtDYbuzG+U3tWZymZcQbemt9/kZYJTjE1iX20SFYHCDk5DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-16T08:43:04.727725Z"},"content_sha256":"15048c2393dff501db2a0cbc26fec124a09a9b9c8a41d2e25a3fb9ecfa8438bf","schema_version":"1.0","event_id":"sha256:15048c2393dff501db2a0cbc26fec124a09a9b9c8a41d2e25a3fb9ecfa8438bf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:3L6Z54XLLDCPK32CNHK4AZ52DO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Precise Determination of the I=2 pipi Scattering Length from Mixed-Action Lattice QCD","license":"","headline":"","cross_cats":["hep-ph"],"primary_cat":"hep-lat","authors_text":"Aaron Torok, Andre Walker-Loud, Assumpta Parreno, Kostas Orginos, Martin J. Savage, Silas R. Beane, Thomas C. Luu","submitted_at":"2007-06-20T17:01:45Z","abstract_excerpt":"The I=2 pipi scattering length is calculated in fully-dynamical lattice QCD with domain-wall valence quarks on the asqtad-improved coarse MILC configurations (with fourth-rooted staggered sea quarks) at four light-quark masses. Two- and three-flavor mixed-action chiral perturbation theory at next-to-leading order is used to perform the chiral and continuum extrapolations. At the physical charged pion mass, we find m_pi a_pipi(I=2) = -0.04330 +- 0.00042, where the error bar combines the statistical and systematic uncertainties in quadrature."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0706.3026","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/0706.3026/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":"2026-07-04T15:24:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gHtYJNlJWgGPK1ITTcDodwvqkSiuNNRE4Ioy0yybBaeK9otDZujgO8TsBYIxeeqM0aU++b08+b819OpnyYjPCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-16T08:43:04.728106Z"},"content_sha256":"d1d7ec4ffd55cb9c196b66be51056382c533ca6d83b0c3ddfe82e31074191e9a","schema_version":"1.0","event_id":"sha256:d1d7ec4ffd55cb9c196b66be51056382c533ca6d83b0c3ddfe82e31074191e9a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3L6Z54XLLDCPK32CNHK4AZ52DO/bundle.json","state_url":"https://pith.science/pith/3L6Z54XLLDCPK32CNHK4AZ52DO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3L6Z54XLLDCPK32CNHK4AZ52DO/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":"2026-07-16T08:43:04Z","links":{"resolver":"https://pith.science/pith/3L6Z54XLLDCPK32CNHK4AZ52DO","bundle":"https://pith.science/pith/3L6Z54XLLDCPK32CNHK4AZ52DO/bundle.json","state":"https://pith.science/pith/3L6Z54XLLDCPK32CNHK4AZ52DO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3L6Z54XLLDCPK32CNHK4AZ52DO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:3L6Z54XLLDCPK32CNHK4AZ52DO","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":"9ef282677f6167943b181b4cfa99d4749625d6648dad9343cc08646cf0df2060","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"hep-lat","submitted_at":"2007-06-20T17:01:45Z","title_canon_sha256":"029fd07a80bc0586b5addb8a3fdd6555132d668563fac637fe0bc509e357f587"},"schema_version":"1.0","source":{"id":"0706.3026","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0706.3026","created_at":"2026-07-04T15:24:20Z"},{"alias_kind":"arxiv_version","alias_value":"0706.3026v1","created_at":"2026-07-04T15:24:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0706.3026","created_at":"2026-07-04T15:24:20Z"},{"alias_kind":"pith_short_12","alias_value":"3L6Z54XLLDCP","created_at":"2026-07-04T15:24:20Z"},{"alias_kind":"pith_short_16","alias_value":"3L6Z54XLLDCPK32C","created_at":"2026-07-04T15:24:20Z"},{"alias_kind":"pith_short_8","alias_value":"3L6Z54XL","created_at":"2026-07-04T15:24:20Z"}],"graph_snapshots":[{"event_id":"sha256:d1d7ec4ffd55cb9c196b66be51056382c533ca6d83b0c3ddfe82e31074191e9a","target":"graph","created_at":"2026-07-04T15:24:20Z","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/0706.3026/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The I=2 pipi scattering length is calculated in fully-dynamical lattice QCD with domain-wall valence quarks on the asqtad-improved coarse MILC configurations (with fourth-rooted staggered sea quarks) at four light-quark masses. Two- and three-flavor mixed-action chiral perturbation theory at next-to-leading order is used to perform the chiral and continuum extrapolations. At the physical charged pion mass, we find m_pi a_pipi(I=2) = -0.04330 +- 0.00042, where the error bar combines the statistical and systematic uncertainties in quadrature.","authors_text":"Aaron Torok, Andre Walker-Loud, Assumpta Parreno, Kostas Orginos, Martin J. Savage, Silas R. Beane, Thomas C. Luu","cross_cats":["hep-ph"],"headline":"","license":"","primary_cat":"hep-lat","submitted_at":"2007-06-20T17:01:45Z","title":"Precise Determination of the I=2 pipi Scattering Length from Mixed-Action Lattice QCD"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0706.3026","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":"sha256:15048c2393dff501db2a0cbc26fec124a09a9b9c8a41d2e25a3fb9ecfa8438bf","target":"record","created_at":"2026-07-04T15:24:20Z","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":"9ef282677f6167943b181b4cfa99d4749625d6648dad9343cc08646cf0df2060","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"hep-lat","submitted_at":"2007-06-20T17:01:45Z","title_canon_sha256":"029fd07a80bc0586b5addb8a3fdd6555132d668563fac637fe0bc509e357f587"},"schema_version":"1.0","source":{"id":"0706.3026","kind":"arxiv","version":1}},"canonical_sha256":"dafd9ef2eb58c4f56f4269d5c067ba1bafe78f7ebce37516821a8b44ecd30b53","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dafd9ef2eb58c4f56f4269d5c067ba1bafe78f7ebce37516821a8b44ecd30b53","first_computed_at":"2026-07-04T15:24:20.956477Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:24:20.956477Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xxVPcdASEE04vTqVwAKpNm3SgwJX+LZn6oxLUqPRLbuTZFigkjqpYZbX6Ox4IDJ5nc3jJmkRfFIkKlAvj4QaAg==","signature_status":"signed_v1","signed_at":"2026-07-04T15:24:20.956951Z","signed_message":"canonical_sha256_bytes"},"source_id":"0706.3026","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:15048c2393dff501db2a0cbc26fec124a09a9b9c8a41d2e25a3fb9ecfa8438bf","sha256:d1d7ec4ffd55cb9c196b66be51056382c533ca6d83b0c3ddfe82e31074191e9a"],"state_sha256":"86c2dda63c979ff55828f7e8eea09060f134b76e4de6628b1573beed334e436a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iIr/Yu7lFo9Oqo97b0unBuG/xwaZvgDNMfEuQBbT8Huxsbze9/NpfzayWZsRls/eGZmBN21YywA+DAKDzV7tBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-16T08:43:04.730693Z","bundle_sha256":"717855fab749f74793539d5e462cabf04b7461da18d96b08635870e67ba8f182"}}