{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:HIRKQE2IYJKBJENKB2PFZGPXBB","short_pith_number":"pith:HIRKQE2I","canonical_record":{"source":{"id":"1505.07195","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2015-05-27T05:58:53Z","cross_cats_sorted":["hep-ph","nucl-ex"],"title_canon_sha256":"203f3aa765bd6e93c3c99f01d8bd5ca9acfd6e7b4603279de0a098e65bb0a186","abstract_canon_sha256":"ee3d8fcdf9dd46ac8cedbaf6846d38c89d7569ab9ce0bcea59f30116337e6594"},"schema_version":"1.0"},"canonical_sha256":"3a22a81348c2541491aa0e9e5c99f708469d62839a3ff928bd4e5eaf6724defd","source":{"kind":"arxiv","id":"1505.07195","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.07195","created_at":"2026-05-18T01:24:19Z"},{"alias_kind":"arxiv_version","alias_value":"1505.07195v1","created_at":"2026-05-18T01:24:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.07195","created_at":"2026-05-18T01:24:19Z"},{"alias_kind":"pith_short_12","alias_value":"HIRKQE2IYJKB","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_16","alias_value":"HIRKQE2IYJKBJENK","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_8","alias_value":"HIRKQE2I","created_at":"2026-05-18T12:29:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:HIRKQE2IYJKBJENKB2PFZGPXBB","target":"record","payload":{"canonical_record":{"source":{"id":"1505.07195","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2015-05-27T05:58:53Z","cross_cats_sorted":["hep-ph","nucl-ex"],"title_canon_sha256":"203f3aa765bd6e93c3c99f01d8bd5ca9acfd6e7b4603279de0a098e65bb0a186","abstract_canon_sha256":"ee3d8fcdf9dd46ac8cedbaf6846d38c89d7569ab9ce0bcea59f30116337e6594"},"schema_version":"1.0"},"canonical_sha256":"3a22a81348c2541491aa0e9e5c99f708469d62839a3ff928bd4e5eaf6724defd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:24:19.018542Z","signature_b64":"5CnA8zj19Qm8vJWZxthnapumkHwCnPMlu/pu39q+sMNEHd/YtzwRA1JJx+tSmHwFIfsxwzRJuxdOb3zOgs6OAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3a22a81348c2541491aa0e9e5c99f708469d62839a3ff928bd4e5eaf6724defd","last_reissued_at":"2026-05-18T01:24:19.018044Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:24:19.018044Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1505.07195","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":"2026-05-18T01:24:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SPYI8EyfPObi65iSR4Oc7qZjMd73cTgjLcvaKWIevhq27j5EeRArgXbZ19N206o8WNHIHfgH6dGDAtStB6KpCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T07:41:50.981711Z"},"content_sha256":"f2a5b9c5232cd8c942d2e9e5e05138cb2ff1128748331a149cbe9707852e7355","schema_version":"1.0","event_id":"sha256:f2a5b9c5232cd8c942d2e9e5e05138cb2ff1128748331a149cbe9707852e7355"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:HIRKQE2IYJKBJENKB2PFZGPXBB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dilepton production spectrum above Tc with a lattice quark propagator","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph","nucl-ex"],"primary_cat":"nucl-th","authors_text":"Masakiyo Kitazawa, Masayuki Asakawa, Taekwang Kim","submitted_at":"2015-05-27T05:58:53Z","abstract_excerpt":"The dilepton production rate from the deconfined medium is analyzed with the photon self-energies constructed from quark propagators obtained by lattice numerical simulation for two values of temperature $T=1.5T_{\\rm c}$ and $3T_{\\rm c}$ above the critical temperature $T_{\\rm c}$. The photon self-energy is calculated by the Schwinger-Dyson equation with the lattice quark propagtor and a vertex function determined so as to satisfy the Ward-Takahashi identity. The obtained dilepton production rate at zero momentum exhibits divergences reflecting van Hove singularity, and is significantly enhance"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.07195","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":""},"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":"2026-05-18T01:24:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n+ZmtZjuJXFGHnTrJxOv6RSFmUuoaUZ7y1u8CazAbrJWyPie6e+8g1jvhkGumrJ5V24k8guHz+CjRxWzJNDHCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T07:41:50.982059Z"},"content_sha256":"407f208637866c09c3be8f115f8cfe6fc4941037afb9d99ae19d9fb8211004f1","schema_version":"1.0","event_id":"sha256:407f208637866c09c3be8f115f8cfe6fc4941037afb9d99ae19d9fb8211004f1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HIRKQE2IYJKBJENKB2PFZGPXBB/bundle.json","state_url":"https://pith.science/pith/HIRKQE2IYJKBJENKB2PFZGPXBB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HIRKQE2IYJKBJENKB2PFZGPXBB/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":"2026-06-09T07:41:50Z","links":{"resolver":"https://pith.science/pith/HIRKQE2IYJKBJENKB2PFZGPXBB","bundle":"https://pith.science/pith/HIRKQE2IYJKBJENKB2PFZGPXBB/bundle.json","state":"https://pith.science/pith/HIRKQE2IYJKBJENKB2PFZGPXBB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HIRKQE2IYJKBJENKB2PFZGPXBB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:HIRKQE2IYJKBJENKB2PFZGPXBB","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":"ee3d8fcdf9dd46ac8cedbaf6846d38c89d7569ab9ce0bcea59f30116337e6594","cross_cats_sorted":["hep-ph","nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2015-05-27T05:58:53Z","title_canon_sha256":"203f3aa765bd6e93c3c99f01d8bd5ca9acfd6e7b4603279de0a098e65bb0a186"},"schema_version":"1.0","source":{"id":"1505.07195","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.07195","created_at":"2026-05-18T01:24:19Z"},{"alias_kind":"arxiv_version","alias_value":"1505.07195v1","created_at":"2026-05-18T01:24:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.07195","created_at":"2026-05-18T01:24:19Z"},{"alias_kind":"pith_short_12","alias_value":"HIRKQE2IYJKB","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_16","alias_value":"HIRKQE2IYJKBJENK","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_8","alias_value":"HIRKQE2I","created_at":"2026-05-18T12:29:25Z"}],"graph_snapshots":[{"event_id":"sha256:407f208637866c09c3be8f115f8cfe6fc4941037afb9d99ae19d9fb8211004f1","target":"graph","created_at":"2026-05-18T01:24:19Z","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":"The dilepton production rate from the deconfined medium is analyzed with the photon self-energies constructed from quark propagators obtained by lattice numerical simulation for two values of temperature $T=1.5T_{\\rm c}$ and $3T_{\\rm c}$ above the critical temperature $T_{\\rm c}$. The photon self-energy is calculated by the Schwinger-Dyson equation with the lattice quark propagtor and a vertex function determined so as to satisfy the Ward-Takahashi identity. The obtained dilepton production rate at zero momentum exhibits divergences reflecting van Hove singularity, and is significantly enhance","authors_text":"Masakiyo Kitazawa, Masayuki Asakawa, Taekwang Kim","cross_cats":["hep-ph","nucl-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2015-05-27T05:58:53Z","title":"Dilepton production spectrum above Tc with a lattice quark propagator"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.07195","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:f2a5b9c5232cd8c942d2e9e5e05138cb2ff1128748331a149cbe9707852e7355","target":"record","created_at":"2026-05-18T01:24:19Z","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":"ee3d8fcdf9dd46ac8cedbaf6846d38c89d7569ab9ce0bcea59f30116337e6594","cross_cats_sorted":["hep-ph","nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2015-05-27T05:58:53Z","title_canon_sha256":"203f3aa765bd6e93c3c99f01d8bd5ca9acfd6e7b4603279de0a098e65bb0a186"},"schema_version":"1.0","source":{"id":"1505.07195","kind":"arxiv","version":1}},"canonical_sha256":"3a22a81348c2541491aa0e9e5c99f708469d62839a3ff928bd4e5eaf6724defd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3a22a81348c2541491aa0e9e5c99f708469d62839a3ff928bd4e5eaf6724defd","first_computed_at":"2026-05-18T01:24:19.018044Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:24:19.018044Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5CnA8zj19Qm8vJWZxthnapumkHwCnPMlu/pu39q+sMNEHd/YtzwRA1JJx+tSmHwFIfsxwzRJuxdOb3zOgs6OAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:24:19.018542Z","signed_message":"canonical_sha256_bytes"},"source_id":"1505.07195","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f2a5b9c5232cd8c942d2e9e5e05138cb2ff1128748331a149cbe9707852e7355","sha256:407f208637866c09c3be8f115f8cfe6fc4941037afb9d99ae19d9fb8211004f1"],"state_sha256":"1e05fb18972fbb74a58c7469cca518b03909f8c38a76d588763723aa6e356dfb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UEpm05Zb0OteuEnvVUxMpAxBpBzwh9Ewwvz8OrsVuwEF1UzRBFvJeb7nxki9KOaLk2wDaInBHYSp8fw84DD/BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T07:41:50.984960Z","bundle_sha256":"bd6b852ad8b0b3a0b9e9f59fcec1db7716d2c86d19c7187141cab4d2fcb38701"}}