{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:DKYOAE4JV7HG5V3JD3FZ5FW4OO","short_pith_number":"pith:DKYOAE4J","canonical_record":{"source":{"id":"0904.2787","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2009-04-17T21:43:15Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"1811d312a624664ad4294f6bd35d329e4389391222388eec1b093c28c6351d0f","abstract_canon_sha256":"e32d33a6e75efe512095728b7772f4941f4dbb37a53db7d833a618e260a9f738"},"schema_version":"1.0"},"canonical_sha256":"1ab0e01389afce6ed7691ecb9e96dc73928e932a9dcf52b248246a43c19ae90d","source":{"kind":"arxiv","id":"0904.2787","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.2787","created_at":"2026-07-04T15:44:49Z"},{"alias_kind":"arxiv_version","alias_value":"0904.2787v1","created_at":"2026-07-04T15:44:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.2787","created_at":"2026-07-04T15:44:49Z"},{"alias_kind":"pith_short_12","alias_value":"DKYOAE4JV7HG","created_at":"2026-07-04T15:44:49Z"},{"alias_kind":"pith_short_16","alias_value":"DKYOAE4JV7HG5V3J","created_at":"2026-07-04T15:44:49Z"},{"alias_kind":"pith_short_8","alias_value":"DKYOAE4J","created_at":"2026-07-04T15:44:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:DKYOAE4JV7HG5V3JD3FZ5FW4OO","target":"record","payload":{"canonical_record":{"source":{"id":"0904.2787","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2009-04-17T21:43:15Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"1811d312a624664ad4294f6bd35d329e4389391222388eec1b093c28c6351d0f","abstract_canon_sha256":"e32d33a6e75efe512095728b7772f4941f4dbb37a53db7d833a618e260a9f738"},"schema_version":"1.0"},"canonical_sha256":"1ab0e01389afce6ed7691ecb9e96dc73928e932a9dcf52b248246a43c19ae90d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:44:49.899759Z","signature_b64":"pZvPZ4g5ktNXy9x2A9MfjXgY5u005JwJs59eySOSjNzT8tYSq2SLTsjAVk7P4SnLG1JCuriyfRiS8jPXVA9MBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1ab0e01389afce6ed7691ecb9e96dc73928e932a9dcf52b248246a43c19ae90d","last_reissued_at":"2026-07-04T15:44:49.899382Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:44:49.899382Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0904.2787","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":"2026-07-04T15:44:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U6wVNGgPJu1s+WTG6+TX2SiKS8E/7tbyHN6NSdt0cCOS9E+Il+/9Fl+XOTISv3AkCx5g1x5coxSk+eejtTUXCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T04:05:22.350023Z"},"content_sha256":"a525ec6ee8337d24155e06023db273448f29eadc9361e5278492a1380a264c0c","schema_version":"1.0","event_id":"sha256:a525ec6ee8337d24155e06023db273448f29eadc9361e5278492a1380a264c0c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:DKYOAE4JV7HG5V3JD3FZ5FW4OO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Extracting the neutron-neutron scattering length -- recent developments","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"nucl-th","authors_text":"Anders Gardestig","submitted_at":"2009-04-17T21:43:15Z","abstract_excerpt":"The experimental and theoretical issues and challenges for extracting the neutron-neutron scattering length are discussed. Particular emphasis is placed on recent results and their impact on the field. Comments are made regarding current experimental and theoretical possibilities."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.2787","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/0904.2787/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":"2026-07-04T15:44:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZCrNuD/R5piIJiYTZyO2N80fx3cOPGzJAup3IQIFUTVcg7ypqID+IXBJ2rKiqmGgQdy5XhGbYz+1rjcyzpjcBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T04:05:22.350895Z"},"content_sha256":"ec114fad235dd741b5de0dcd182fc3ac8a37660b54113b2b5d5bd6cbe4e9ef4e","schema_version":"1.0","event_id":"sha256:ec114fad235dd741b5de0dcd182fc3ac8a37660b54113b2b5d5bd6cbe4e9ef4e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DKYOAE4JV7HG5V3JD3FZ5FW4OO/bundle.json","state_url":"https://pith.science/pith/DKYOAE4JV7HG5V3JD3FZ5FW4OO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DKYOAE4JV7HG5V3JD3FZ5FW4OO/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":"2026-08-05T04:05:22Z","links":{"resolver":"https://pith.science/pith/DKYOAE4JV7HG5V3JD3FZ5FW4OO","bundle":"https://pith.science/pith/DKYOAE4JV7HG5V3JD3FZ5FW4OO/bundle.json","state":"https://pith.science/pith/DKYOAE4JV7HG5V3JD3FZ5FW4OO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DKYOAE4JV7HG5V3JD3FZ5FW4OO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:DKYOAE4JV7HG5V3JD3FZ5FW4OO","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":"e32d33a6e75efe512095728b7772f4941f4dbb37a53db7d833a618e260a9f738","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2009-04-17T21:43:15Z","title_canon_sha256":"1811d312a624664ad4294f6bd35d329e4389391222388eec1b093c28c6351d0f"},"schema_version":"1.0","source":{"id":"0904.2787","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.2787","created_at":"2026-07-04T15:44:49Z"},{"alias_kind":"arxiv_version","alias_value":"0904.2787v1","created_at":"2026-07-04T15:44:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.2787","created_at":"2026-07-04T15:44:49Z"},{"alias_kind":"pith_short_12","alias_value":"DKYOAE4JV7HG","created_at":"2026-07-04T15:44:49Z"},{"alias_kind":"pith_short_16","alias_value":"DKYOAE4JV7HG5V3J","created_at":"2026-07-04T15:44:49Z"},{"alias_kind":"pith_short_8","alias_value":"DKYOAE4J","created_at":"2026-07-04T15:44:49Z"}],"graph_snapshots":[{"event_id":"sha256:ec114fad235dd741b5de0dcd182fc3ac8a37660b54113b2b5d5bd6cbe4e9ef4e","target":"graph","created_at":"2026-07-04T15:44:49Z","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/0904.2787/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The experimental and theoretical issues and challenges for extracting the neutron-neutron scattering length are discussed. Particular emphasis is placed on recent results and their impact on the field. Comments are made regarding current experimental and theoretical possibilities.","authors_text":"Anders Gardestig","cross_cats":["nucl-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2009-04-17T21:43:15Z","title":"Extracting the neutron-neutron scattering length -- recent developments"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.2787","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:a525ec6ee8337d24155e06023db273448f29eadc9361e5278492a1380a264c0c","target":"record","created_at":"2026-07-04T15:44:49Z","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":"e32d33a6e75efe512095728b7772f4941f4dbb37a53db7d833a618e260a9f738","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2009-04-17T21:43:15Z","title_canon_sha256":"1811d312a624664ad4294f6bd35d329e4389391222388eec1b093c28c6351d0f"},"schema_version":"1.0","source":{"id":"0904.2787","kind":"arxiv","version":1}},"canonical_sha256":"1ab0e01389afce6ed7691ecb9e96dc73928e932a9dcf52b248246a43c19ae90d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1ab0e01389afce6ed7691ecb9e96dc73928e932a9dcf52b248246a43c19ae90d","first_computed_at":"2026-07-04T15:44:49.899382Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:44:49.899382Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pZvPZ4g5ktNXy9x2A9MfjXgY5u005JwJs59eySOSjNzT8tYSq2SLTsjAVk7P4SnLG1JCuriyfRiS8jPXVA9MBg==","signature_status":"signed_v1","signed_at":"2026-07-04T15:44:49.899759Z","signed_message":"canonical_sha256_bytes"},"source_id":"0904.2787","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a525ec6ee8337d24155e06023db273448f29eadc9361e5278492a1380a264c0c","sha256:ec114fad235dd741b5de0dcd182fc3ac8a37660b54113b2b5d5bd6cbe4e9ef4e"],"state_sha256":"8f639dd24aeaadf15969f481b59ef6661ce34aced3b8229a6236481755c14c3d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Q5fWcsZQ/lt5J6iLx2T4D4qRa6sprSPigpBwhj933yYawV7dWAbLHHMTWRtCFvil3+g4ZPt+baj8z4MqxTlCBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T04:05:22.357924Z","bundle_sha256":"8a329960a0cd14808921324aa6dff348887caded4d1335c6dd37cfc872c2b543"}}