{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:FI466NIHT6CUCTJSFYU37QWKWF","short_pith_number":"pith:FI466NIH","canonical_record":{"source":{"id":"0709.4507","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"nucl-ex","submitted_at":"2007-09-27T22:21:09Z","cross_cats_sorted":[],"title_canon_sha256":"60f0481a0596adfc1b755e0539068a81c657c8ee0fae809671e44a38fbf21b87","abstract_canon_sha256":"85e4c0b87fc9b334262a5eb589e40210801ce02c1416cec3cc34a024009d1032"},"schema_version":"1.0"},"canonical_sha256":"2a39ef35079f85414d322e29bfc2cab16708d9e955c6596aaae7d6ca24ce5340","source":{"kind":"arxiv","id":"0709.4507","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0709.4507","created_at":"2026-05-18T03:48:11Z"},{"alias_kind":"arxiv_version","alias_value":"0709.4507v2","created_at":"2026-05-18T03:48:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0709.4507","created_at":"2026-05-18T03:48:11Z"},{"alias_kind":"pith_short_12","alias_value":"FI466NIHT6CU","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_16","alias_value":"FI466NIHT6CUCTJS","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_8","alias_value":"FI466NIH","created_at":"2026-05-18T12:25:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:FI466NIHT6CUCTJSFYU37QWKWF","target":"record","payload":{"canonical_record":{"source":{"id":"0709.4507","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"nucl-ex","submitted_at":"2007-09-27T22:21:09Z","cross_cats_sorted":[],"title_canon_sha256":"60f0481a0596adfc1b755e0539068a81c657c8ee0fae809671e44a38fbf21b87","abstract_canon_sha256":"85e4c0b87fc9b334262a5eb589e40210801ce02c1416cec3cc34a024009d1032"},"schema_version":"1.0"},"canonical_sha256":"2a39ef35079f85414d322e29bfc2cab16708d9e955c6596aaae7d6ca24ce5340","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:48:11.870830Z","signature_b64":"fxILfR68LCOzPO9il/BlLyOPoRm/bbLUkdxgJvplp+llB73+EpVeid2mwxctkSWPqL/ER6ObOWG4lzI9IrP9AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2a39ef35079f85414d322e29bfc2cab16708d9e955c6596aaae7d6ca24ce5340","last_reissued_at":"2026-05-18T03:48:11.870269Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:48:11.870269Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0709.4507","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":"2026-05-18T03:48:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"13lUPka1Xgy2qp2Q4b2p4Kz5mrj7fVg6cUUSC1LCF7X6iWKmiNJlabw6CO/9Gr50VKVY1LF/0U3BDIMQgcmIDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T12:06:16.249083Z"},"content_sha256":"2414ba00a9f33e2faeb55f64f0672959169c8d6518cf8f26f73adea0e32525d9","schema_version":"1.0","event_id":"sha256:2414ba00a9f33e2faeb55f64f0672959169c8d6518cf8f26f73adea0e32525d9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:FI466NIHT6CUCTJSFYU37QWKWF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Bose-Einstein correlations of pion pairs in central Pb+Pb collisions at CERN SPS energies","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"NA49 collaboration","submitted_at":"2007-09-27T22:21:09Z","abstract_excerpt":"Measurements of Bose-Einstein correlations of pion pairs in central Pb+Pb collisions were performed with the NA49 detector at the CERN SPS for beam energies of 20A, 30A, 40A, 80A, and 158A GeV. Correlation functions were measured in the longitudinally co-moving ``out-side-long'' reference frame as a function of rapidity and transverse momentum in the forward hemisphere of the reaction. Radius and correlation strength parameters were obtained from fits of a Gaussian parametrization. The results show a decrease of the radius parameters with increasing transverse momentum characteristic of strong"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0709.4507","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":""},"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":"2026-05-18T03:48:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0DEuImZPacr1lcX3US/Hsekk0MliMUQ/VIxPcDEcVYhZ0Du4AHp0kv5fwJecXdOXP03alvK+8JVOg6XdCzcfBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T12:06:16.249449Z"},"content_sha256":"af0b22e464f40b402c3cfba46cc8971f4f65ddc480d93956a69794d24194a390","schema_version":"1.0","event_id":"sha256:af0b22e464f40b402c3cfba46cc8971f4f65ddc480d93956a69794d24194a390"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FI466NIHT6CUCTJSFYU37QWKWF/bundle.json","state_url":"https://pith.science/pith/FI466NIHT6CUCTJSFYU37QWKWF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FI466NIHT6CUCTJSFYU37QWKWF/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":"2026-06-01T12:06:16Z","links":{"resolver":"https://pith.science/pith/FI466NIHT6CUCTJSFYU37QWKWF","bundle":"https://pith.science/pith/FI466NIHT6CUCTJSFYU37QWKWF/bundle.json","state":"https://pith.science/pith/FI466NIHT6CUCTJSFYU37QWKWF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FI466NIHT6CUCTJSFYU37QWKWF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:FI466NIHT6CUCTJSFYU37QWKWF","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":"85e4c0b87fc9b334262a5eb589e40210801ce02c1416cec3cc34a024009d1032","cross_cats_sorted":[],"license":"","primary_cat":"nucl-ex","submitted_at":"2007-09-27T22:21:09Z","title_canon_sha256":"60f0481a0596adfc1b755e0539068a81c657c8ee0fae809671e44a38fbf21b87"},"schema_version":"1.0","source":{"id":"0709.4507","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0709.4507","created_at":"2026-05-18T03:48:11Z"},{"alias_kind":"arxiv_version","alias_value":"0709.4507v2","created_at":"2026-05-18T03:48:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0709.4507","created_at":"2026-05-18T03:48:11Z"},{"alias_kind":"pith_short_12","alias_value":"FI466NIHT6CU","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_16","alias_value":"FI466NIHT6CUCTJS","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_8","alias_value":"FI466NIH","created_at":"2026-05-18T12:25:55Z"}],"graph_snapshots":[{"event_id":"sha256:af0b22e464f40b402c3cfba46cc8971f4f65ddc480d93956a69794d24194a390","target":"graph","created_at":"2026-05-18T03:48:11Z","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"},"paper":{"abstract_excerpt":"Measurements of Bose-Einstein correlations of pion pairs in central Pb+Pb collisions were performed with the NA49 detector at the CERN SPS for beam energies of 20A, 30A, 40A, 80A, and 158A GeV. Correlation functions were measured in the longitudinally co-moving ``out-side-long'' reference frame as a function of rapidity and transverse momentum in the forward hemisphere of the reaction. Radius and correlation strength parameters were obtained from fits of a Gaussian parametrization. The results show a decrease of the radius parameters with increasing transverse momentum characteristic of strong","authors_text":"NA49 collaboration","cross_cats":[],"headline":"","license":"","primary_cat":"nucl-ex","submitted_at":"2007-09-27T22:21:09Z","title":"Bose-Einstein correlations of pion pairs in central Pb+Pb collisions at CERN SPS energies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0709.4507","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":"sha256:2414ba00a9f33e2faeb55f64f0672959169c8d6518cf8f26f73adea0e32525d9","target":"record","created_at":"2026-05-18T03:48:11Z","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":"85e4c0b87fc9b334262a5eb589e40210801ce02c1416cec3cc34a024009d1032","cross_cats_sorted":[],"license":"","primary_cat":"nucl-ex","submitted_at":"2007-09-27T22:21:09Z","title_canon_sha256":"60f0481a0596adfc1b755e0539068a81c657c8ee0fae809671e44a38fbf21b87"},"schema_version":"1.0","source":{"id":"0709.4507","kind":"arxiv","version":2}},"canonical_sha256":"2a39ef35079f85414d322e29bfc2cab16708d9e955c6596aaae7d6ca24ce5340","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2a39ef35079f85414d322e29bfc2cab16708d9e955c6596aaae7d6ca24ce5340","first_computed_at":"2026-05-18T03:48:11.870269Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:48:11.870269Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fxILfR68LCOzPO9il/BlLyOPoRm/bbLUkdxgJvplp+llB73+EpVeid2mwxctkSWPqL/ER6ObOWG4lzI9IrP9AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:48:11.870830Z","signed_message":"canonical_sha256_bytes"},"source_id":"0709.4507","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2414ba00a9f33e2faeb55f64f0672959169c8d6518cf8f26f73adea0e32525d9","sha256:af0b22e464f40b402c3cfba46cc8971f4f65ddc480d93956a69794d24194a390"],"state_sha256":"bb896bdf127b01e9e43bae8ba22330981cd6ec89705339365696946043a01e7a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s5dj2FvxbFHLjcX5eNCt0/UHeqTp5oWgBUcraEAbAhUmL3xaqtHsBf0H3wGD3TQdwV7VKV2EL4kKA5wSDGYyAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T12:06:16.251382Z","bundle_sha256":"e927e2ef6adb481e99e4c876f913dea9cdc514b9390b76855439ac0ae5657ee2"}}