{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:WZRXCLX4LEEFQLJ47FAHJHFAQG","short_pith_number":"pith:WZRXCLX4","canonical_record":{"source":{"id":"1512.06988","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2015-12-22T09:19:20Z","cross_cats_sorted":[],"title_canon_sha256":"8a2d3ebddc4293fe5e631c9a765cd86a4fd817a9b9e7f9a89386160ee7d6214e","abstract_canon_sha256":"371c83a73635d175badfc83f0b5abf06cf0a1c97504ae7d6d02f1505fea1cae4"},"schema_version":"1.0"},"canonical_sha256":"b663712efc5908582d3cf940749ca0819f76bf9f423e1cfb229e811eca423d6c","source":{"kind":"arxiv","id":"1512.06988","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.06988","created_at":"2026-05-18T01:11:41Z"},{"alias_kind":"arxiv_version","alias_value":"1512.06988v2","created_at":"2026-05-18T01:11:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.06988","created_at":"2026-05-18T01:11:41Z"},{"alias_kind":"pith_short_12","alias_value":"WZRXCLX4LEEF","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_16","alias_value":"WZRXCLX4LEEFQLJ4","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_8","alias_value":"WZRXCLX4","created_at":"2026-05-18T12:29:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:WZRXCLX4LEEFQLJ47FAHJHFAQG","target":"record","payload":{"canonical_record":{"source":{"id":"1512.06988","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2015-12-22T09:19:20Z","cross_cats_sorted":[],"title_canon_sha256":"8a2d3ebddc4293fe5e631c9a765cd86a4fd817a9b9e7f9a89386160ee7d6214e","abstract_canon_sha256":"371c83a73635d175badfc83f0b5abf06cf0a1c97504ae7d6d02f1505fea1cae4"},"schema_version":"1.0"},"canonical_sha256":"b663712efc5908582d3cf940749ca0819f76bf9f423e1cfb229e811eca423d6c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:11:41.212550Z","signature_b64":"QKDyYggMslSZidew4SycoglQFKd5VroTeimreZL5QBkV0o8iM6VJiEp2GtTt3YI+dHDmzaNb816YAp7/yOOFBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b663712efc5908582d3cf940749ca0819f76bf9f423e1cfb229e811eca423d6c","last_reissued_at":"2026-05-18T01:11:41.212187Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:11:41.212187Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1512.06988","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":"2026-05-18T01:11:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1ko2OvBZIwwQpbPH6qjuGmqaX+ugI0R+xELmibcFaFh3gAuc6LeV6JD63vzZFZv9gE8FEzk6tyPZF5KfYLC3DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T22:26:47.653308Z"},"content_sha256":"71ccb538d504ec48caeb0988d8e6097e7f3c8a9aec3b3d03c5b669a89a10685e","schema_version":"1.0","event_id":"sha256:71ccb538d504ec48caeb0988d8e6097e7f3c8a9aec3b3d03c5b669a89a10685e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:WZRXCLX4LEEFQLJ47FAHJHFAQG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Strange meson production in Al+Al collisions at 1.9A GeV","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Andronic, A. Lebedev, A. Le F\\`evre, A. Reischl, A. Sch\\\"uttauf, A. Zhilin, B. Hong, B. Sikora, E. Widmann, F. Rami, I. Deppner, I. Ga\\v{s}pari\\'c, I. Weber, I. Yushmanov, J. Kecskemeti, J.L. Liu, J. Marton, J. Zmeskal, K.D. Hildenbrand, K. Piasecki, K. Siwek-Wilczy\\'nska, K.S. Sim, K. Suzuki, K. Wi\\'sniewski, L. Fabbietti, M. Berger, M. Cargnelli, M. D\\v{z}elalija, M. Kirejczyk, M. Ki\\v{s}, M.L. Benabderrahmane, M. Petrovici, M.S. Ryu, N. Bastid, N. Herrmann, O. Czerwiakowa, O.N. Hartmann, P. Buehler, P. Crochet, P. Dupieux, P. Gasik, P. Koczon, P. Schmidt, P. Wagner, R. Averbeck, R. Kotte, R. M\\\"unzer, R. \\v{C}aplar, T.I. Kang, T. Matulewicz, V. Barret, V. Manko, V. Simion, V. Smolyankin, V. Zinyuk, W. Reisdorf, X. Lopez, Y. Grishkin, Y.J. Kim, Y. Leifels, Y. Zhang, Z. Basrak, Z. Fodor, Z.G. Xiao, Z. Seres, Z. Tymi\\'nski","submitted_at":"2015-12-22T09:19:20Z","abstract_excerpt":"The production of K$^+$, K$^-$ and $\\varphi$(1020) mesons is studied in Al+Al collisions at a beam energy of 1.9A GeV which is close or below the production threshold in NN reactions. Inverse slopes, anisotropy parameters, and total emission yields of K$^{\\pm}$ mesons are obtained. A comparison of the ratio of kinetic energy distributions of K$^-$ and K$^+$ mesons to the HSD transport model calculations suggests that the inclusion of the in-medium modifications of kaon properties is necessary to reproduce the ratio. The inverse slope and total yield of $\\phi$ mesons are deduced. The contributi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.06988","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":"2026-05-18T01:11:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DbrOPA/hoGjok7RZH8XBbp18MzuntVCAcRMKGa9xn+csBDbgLpkMj8KftRzOi9PM5ZnwLp11A71eJgZTrRvxAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T22:26:47.653801Z"},"content_sha256":"c82b2215527c08bdadbb6bd3586c966d26b9d4a0b45e698bf6b576eea36d11ad","schema_version":"1.0","event_id":"sha256:c82b2215527c08bdadbb6bd3586c966d26b9d4a0b45e698bf6b576eea36d11ad"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WZRXCLX4LEEFQLJ47FAHJHFAQG/bundle.json","state_url":"https://pith.science/pith/WZRXCLX4LEEFQLJ47FAHJHFAQG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WZRXCLX4LEEFQLJ47FAHJHFAQG/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":"2026-08-05T22:26:47Z","links":{"resolver":"https://pith.science/pith/WZRXCLX4LEEFQLJ47FAHJHFAQG","bundle":"https://pith.science/pith/WZRXCLX4LEEFQLJ47FAHJHFAQG/bundle.json","state":"https://pith.science/pith/WZRXCLX4LEEFQLJ47FAHJHFAQG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WZRXCLX4LEEFQLJ47FAHJHFAQG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:WZRXCLX4LEEFQLJ47FAHJHFAQG","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":"371c83a73635d175badfc83f0b5abf06cf0a1c97504ae7d6d02f1505fea1cae4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2015-12-22T09:19:20Z","title_canon_sha256":"8a2d3ebddc4293fe5e631c9a765cd86a4fd817a9b9e7f9a89386160ee7d6214e"},"schema_version":"1.0","source":{"id":"1512.06988","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.06988","created_at":"2026-05-18T01:11:41Z"},{"alias_kind":"arxiv_version","alias_value":"1512.06988v2","created_at":"2026-05-18T01:11:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.06988","created_at":"2026-05-18T01:11:41Z"},{"alias_kind":"pith_short_12","alias_value":"WZRXCLX4LEEF","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_16","alias_value":"WZRXCLX4LEEFQLJ4","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_8","alias_value":"WZRXCLX4","created_at":"2026-05-18T12:29:47Z"}],"graph_snapshots":[{"event_id":"sha256:c82b2215527c08bdadbb6bd3586c966d26b9d4a0b45e698bf6b576eea36d11ad","target":"graph","created_at":"2026-05-18T01:11:41Z","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 production of K$^+$, K$^-$ and $\\varphi$(1020) mesons is studied in Al+Al collisions at a beam energy of 1.9A GeV which is close or below the production threshold in NN reactions. Inverse slopes, anisotropy parameters, and total emission yields of K$^{\\pm}$ mesons are obtained. A comparison of the ratio of kinetic energy distributions of K$^-$ and K$^+$ mesons to the HSD transport model calculations suggests that the inclusion of the in-medium modifications of kaon properties is necessary to reproduce the ratio. The inverse slope and total yield of $\\phi$ mesons are deduced. The contributi","authors_text":"A. Andronic, A. Lebedev, A. Le F\\`evre, A. Reischl, A. Sch\\\"uttauf, A. Zhilin, B. Hong, B. Sikora, E. Widmann, F. Rami, I. Deppner, I. Ga\\v{s}pari\\'c, I. Weber, I. Yushmanov, J. Kecskemeti, J.L. Liu, J. Marton, J. Zmeskal, K.D. Hildenbrand, K. Piasecki, K. Siwek-Wilczy\\'nska, K.S. Sim, K. Suzuki, K. Wi\\'sniewski, L. Fabbietti, M. Berger, M. Cargnelli, M. D\\v{z}elalija, M. Kirejczyk, M. Ki\\v{s}, M.L. Benabderrahmane, M. Petrovici, M.S. Ryu, N. Bastid, N. Herrmann, O. Czerwiakowa, O.N. Hartmann, P. Buehler, P. Crochet, P. Dupieux, P. Gasik, P. Koczon, P. Schmidt, P. Wagner, R. Averbeck, R. Kotte, R. M\\\"unzer, R. \\v{C}aplar, T.I. Kang, T. Matulewicz, V. Barret, V. Manko, V. Simion, V. Smolyankin, V. Zinyuk, W. Reisdorf, X. Lopez, Y. Grishkin, Y.J. Kim, Y. Leifels, Y. Zhang, Z. Basrak, Z. Fodor, Z.G. Xiao, Z. Seres, Z. Tymi\\'nski","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2015-12-22T09:19:20Z","title":"Strange meson production in Al+Al collisions at 1.9A GeV"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.06988","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":"sha256:71ccb538d504ec48caeb0988d8e6097e7f3c8a9aec3b3d03c5b669a89a10685e","target":"record","created_at":"2026-05-18T01:11:41Z","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":"371c83a73635d175badfc83f0b5abf06cf0a1c97504ae7d6d02f1505fea1cae4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2015-12-22T09:19:20Z","title_canon_sha256":"8a2d3ebddc4293fe5e631c9a765cd86a4fd817a9b9e7f9a89386160ee7d6214e"},"schema_version":"1.0","source":{"id":"1512.06988","kind":"arxiv","version":2}},"canonical_sha256":"b663712efc5908582d3cf940749ca0819f76bf9f423e1cfb229e811eca423d6c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b663712efc5908582d3cf940749ca0819f76bf9f423e1cfb229e811eca423d6c","first_computed_at":"2026-05-18T01:11:41.212187Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:11:41.212187Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QKDyYggMslSZidew4SycoglQFKd5VroTeimreZL5QBkV0o8iM6VJiEp2GtTt3YI+dHDmzaNb816YAp7/yOOFBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:11:41.212550Z","signed_message":"canonical_sha256_bytes"},"source_id":"1512.06988","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:71ccb538d504ec48caeb0988d8e6097e7f3c8a9aec3b3d03c5b669a89a10685e","sha256:c82b2215527c08bdadbb6bd3586c966d26b9d4a0b45e698bf6b576eea36d11ad"],"state_sha256":"23849f8bceb9c51f4020fc8ae7a3110f9f49973c1633839fce2b5ea67e8c3ffd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SRBMP/nIpDrEryI9VXIC+1CIYX0Apsaid7I0eP0nzXuUy0B/bQbgl1kN25bnM+dvMfZ48Im99SFdwtjotNHYBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T22:26:47.658850Z","bundle_sha256":"d1d300ebc68b052fb903bf3596d814bb991433c1678f90cd0297ffa53371a5fa"}}