{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:X6VNRIPQGMP3EZEJDKCBVCLZJW","short_pith_number":"pith:X6VNRIPQ","canonical_record":{"source":{"id":"0909.3914","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-09-22T06:39:16Z","cross_cats_sorted":[],"title_canon_sha256":"bfef54e658d59f4a927c7581e61289cea861253bd6abf21fd3e1136eac015f11","abstract_canon_sha256":"f038e0d0bd7486fc8db1305713168c72e27112b4836e04ba8d7765781070f262"},"schema_version":"1.0"},"canonical_sha256":"bfaad8a1f0331fb264891a841a89794d98aef860fd249d4b74083fdd97494dab","source":{"kind":"arxiv","id":"0909.3914","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.3914","created_at":"2026-05-18T02:34:28Z"},{"alias_kind":"arxiv_version","alias_value":"0909.3914v1","created_at":"2026-05-18T02:34:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.3914","created_at":"2026-05-18T02:34:28Z"},{"alias_kind":"pith_short_12","alias_value":"X6VNRIPQGMP3","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_16","alias_value":"X6VNRIPQGMP3EZEJ","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_8","alias_value":"X6VNRIPQ","created_at":"2026-05-18T12:26:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:X6VNRIPQGMP3EZEJDKCBVCLZJW","target":"record","payload":{"canonical_record":{"source":{"id":"0909.3914","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-09-22T06:39:16Z","cross_cats_sorted":[],"title_canon_sha256":"bfef54e658d59f4a927c7581e61289cea861253bd6abf21fd3e1136eac015f11","abstract_canon_sha256":"f038e0d0bd7486fc8db1305713168c72e27112b4836e04ba8d7765781070f262"},"schema_version":"1.0"},"canonical_sha256":"bfaad8a1f0331fb264891a841a89794d98aef860fd249d4b74083fdd97494dab","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:34:28.271938Z","signature_b64":"7vI8ryyYQ2N6g2j4A0GNpDCLX1ZhAHfh1F8o4T/BBaINV5Db/00NC2ntHLeNID/wduOdzQdvmXDISGd8udBbAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bfaad8a1f0331fb264891a841a89794d98aef860fd249d4b74083fdd97494dab","last_reissued_at":"2026-05-18T02:34:28.271348Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:34:28.271348Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0909.3914","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":"2026-05-18T02:34:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8awkbLpHMTTTd295xnsAE9WaUnhzXjcxqvF4oBgr4yXnqOkrHOmnlfzKiQzFJCFNeC8R2hZeB6kGGvi/PT44AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T07:43:13.708243Z"},"content_sha256":"25a9372dcb4fc34645b58e914de569c50537f4e9ae0dae3215253b5f8d800bbc","schema_version":"1.0","event_id":"sha256:25a9372dcb4fc34645b58e914de569c50537f4e9ae0dae3215253b5f8d800bbc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:X6VNRIPQGMP3EZEJDKCBVCLZJW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Holographic QCD in medium: a bottom up approach","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Bum-Hoon Lee, Chanyong Park, Kwanghyun Jo, Sang-Jin Sin","submitted_at":"2009-09-22T06:39:16Z","abstract_excerpt":"A holographic dual of hadrons at finite density is considered. We use the zero black-hole mass limit of Reisner-Nordstrom (RN) AdS background with hard wall to describe a confining background with finite quark density. We calculate density-dependence of meson masses and decay constants. In our model, pion decay constant and its velocity go down but all the meson masses go up as density grows."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.3914","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":"2026-05-18T02:34:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"httZckzoofQCX8pWwxV2Axf/QTbTS1kALEm8y2iJvqnfrP+GrPHH0TuOqB3x0ImhGjvUz/QxGNjwuvG2jJgrDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T07:43:13.708901Z"},"content_sha256":"464bcbf7d5b337bf54623bb208beea6c1ea5f9e1d9c0ee336541309aea147ed4","schema_version":"1.0","event_id":"sha256:464bcbf7d5b337bf54623bb208beea6c1ea5f9e1d9c0ee336541309aea147ed4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/X6VNRIPQGMP3EZEJDKCBVCLZJW/bundle.json","state_url":"https://pith.science/pith/X6VNRIPQGMP3EZEJDKCBVCLZJW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/X6VNRIPQGMP3EZEJDKCBVCLZJW/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":"2026-05-30T07:43:13Z","links":{"resolver":"https://pith.science/pith/X6VNRIPQGMP3EZEJDKCBVCLZJW","bundle":"https://pith.science/pith/X6VNRIPQGMP3EZEJDKCBVCLZJW/bundle.json","state":"https://pith.science/pith/X6VNRIPQGMP3EZEJDKCBVCLZJW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/X6VNRIPQGMP3EZEJDKCBVCLZJW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:X6VNRIPQGMP3EZEJDKCBVCLZJW","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":"f038e0d0bd7486fc8db1305713168c72e27112b4836e04ba8d7765781070f262","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-09-22T06:39:16Z","title_canon_sha256":"bfef54e658d59f4a927c7581e61289cea861253bd6abf21fd3e1136eac015f11"},"schema_version":"1.0","source":{"id":"0909.3914","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.3914","created_at":"2026-05-18T02:34:28Z"},{"alias_kind":"arxiv_version","alias_value":"0909.3914v1","created_at":"2026-05-18T02:34:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.3914","created_at":"2026-05-18T02:34:28Z"},{"alias_kind":"pith_short_12","alias_value":"X6VNRIPQGMP3","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_16","alias_value":"X6VNRIPQGMP3EZEJ","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_8","alias_value":"X6VNRIPQ","created_at":"2026-05-18T12:26:02Z"}],"graph_snapshots":[{"event_id":"sha256:464bcbf7d5b337bf54623bb208beea6c1ea5f9e1d9c0ee336541309aea147ed4","target":"graph","created_at":"2026-05-18T02:34:28Z","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":"A holographic dual of hadrons at finite density is considered. We use the zero black-hole mass limit of Reisner-Nordstrom (RN) AdS background with hard wall to describe a confining background with finite quark density. We calculate density-dependence of meson masses and decay constants. In our model, pion decay constant and its velocity go down but all the meson masses go up as density grows.","authors_text":"Bum-Hoon Lee, Chanyong Park, Kwanghyun Jo, Sang-Jin Sin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-09-22T06:39:16Z","title":"Holographic QCD in medium: a bottom up approach"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.3914","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":"sha256:25a9372dcb4fc34645b58e914de569c50537f4e9ae0dae3215253b5f8d800bbc","target":"record","created_at":"2026-05-18T02:34:28Z","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":"f038e0d0bd7486fc8db1305713168c72e27112b4836e04ba8d7765781070f262","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-09-22T06:39:16Z","title_canon_sha256":"bfef54e658d59f4a927c7581e61289cea861253bd6abf21fd3e1136eac015f11"},"schema_version":"1.0","source":{"id":"0909.3914","kind":"arxiv","version":1}},"canonical_sha256":"bfaad8a1f0331fb264891a841a89794d98aef860fd249d4b74083fdd97494dab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bfaad8a1f0331fb264891a841a89794d98aef860fd249d4b74083fdd97494dab","first_computed_at":"2026-05-18T02:34:28.271348Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:34:28.271348Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7vI8ryyYQ2N6g2j4A0GNpDCLX1ZhAHfh1F8o4T/BBaINV5Db/00NC2ntHLeNID/wduOdzQdvmXDISGd8udBbAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:34:28.271938Z","signed_message":"canonical_sha256_bytes"},"source_id":"0909.3914","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:25a9372dcb4fc34645b58e914de569c50537f4e9ae0dae3215253b5f8d800bbc","sha256:464bcbf7d5b337bf54623bb208beea6c1ea5f9e1d9c0ee336541309aea147ed4"],"state_sha256":"6ad3117b14449043ed11ebddff9d12b22d8d0a4ac2dda5344f2c0e4c8f75f796"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"k4ViUdR5ti3MFOgYcBUh2MWu3r5geadhZmiRUh6N7J2NGbw/+ccCNDtnGMUMuIdmHF01lpq5pwOt/hJ+hBtlAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T07:43:13.712427Z","bundle_sha256":"47eb956349b80b1c5e54c4b295a7bcad359a201a994dd02dcc44c8bbfda268fe"}}