{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:K5QSK6IUIRT2UIRCA5IYVZUII4","short_pith_number":"pith:K5QSK6IU","canonical_record":{"source":{"id":"2406.05357","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-06-08T05:16:30Z","cross_cats_sorted":[],"title_canon_sha256":"ea1e99e6813aa7f66cc30d21996419391a00170a331fbaeafac9f34b5da7007d","abstract_canon_sha256":"c7dc60c92524e8c416ecb82748dacb8870bf076ed9cc4b92374b0dd7fa6e9ae3"},"schema_version":"1.0"},"canonical_sha256":"57612579144467aa222207518ae688473ea36c83819262b51998b1da0de771d5","source":{"kind":"arxiv","id":"2406.05357","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2406.05357","created_at":"2026-07-05T08:41:45Z"},{"alias_kind":"arxiv_version","alias_value":"2406.05357v1","created_at":"2026-07-05T08:41:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2406.05357","created_at":"2026-07-05T08:41:45Z"},{"alias_kind":"pith_short_12","alias_value":"K5QSK6IUIRT2","created_at":"2026-07-05T08:41:45Z"},{"alias_kind":"pith_short_16","alias_value":"K5QSK6IUIRT2UIRC","created_at":"2026-07-05T08:41:45Z"},{"alias_kind":"pith_short_8","alias_value":"K5QSK6IU","created_at":"2026-07-05T08:41:45Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:K5QSK6IUIRT2UIRCA5IYVZUII4","target":"record","payload":{"canonical_record":{"source":{"id":"2406.05357","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-06-08T05:16:30Z","cross_cats_sorted":[],"title_canon_sha256":"ea1e99e6813aa7f66cc30d21996419391a00170a331fbaeafac9f34b5da7007d","abstract_canon_sha256":"c7dc60c92524e8c416ecb82748dacb8870bf076ed9cc4b92374b0dd7fa6e9ae3"},"schema_version":"1.0"},"canonical_sha256":"57612579144467aa222207518ae688473ea36c83819262b51998b1da0de771d5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:41:45.589420Z","signature_b64":"YV4pAJof9ebGsoDyVsd7dAJ9DmZLi4aZZTTtp6x1ieffJXR+6yhiXW4XFv/1vJE5rH5NN81KG/s8apq/7cJjBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"57612579144467aa222207518ae688473ea36c83819262b51998b1da0de771d5","last_reissued_at":"2026-07-05T08:41:45.588966Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:41:45.588966Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2406.05357","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":"2026-07-05T08:41:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZEt5GC3bdjfutoO+1BfH6azVMBOXNY42YUD06nB8Rbtpb1OSfdRtKJi54wDpa4ySzUcXbs1/r+R1qY/evrRWDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T23:25:49.424349Z"},"content_sha256":"d653cffe6157dbf7fb0f690da18a41cae47ee306fea273c806f1af512dec082a","schema_version":"1.0","event_id":"sha256:d653cffe6157dbf7fb0f690da18a41cae47ee306fea273c806f1af512dec082a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:K5QSK6IUIRT2UIRCA5IYVZUII4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Classification of Fermi Gamma-Ray Bursts Based on Machine Learning","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Da-Ling Ma, Fu-Wen Zhang, Si-Yuan Zhu, Wan-Peng Sun","submitted_at":"2024-06-08T05:16:30Z","abstract_excerpt":"Gamma-ray bursts (GRBs) are typically classified into long and short GRBs based on their durations. However, there is a significant overlapping in the duration distributions of these two categories. In this paper, we apply the unsupervised dimensionality reduction algorithm called t-SNE and UMAP to classify 2061 Fermi GRBs based on four observed quantities: duration, peak energy, fluence, and peak flux. The map results of t-SNE and UMAP show a clear division of these GRBs into two clusters. We mark the two clusters as GRBs-I and GRBs-II, and find that all GRBs associated with supernovae are cl"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2406.05357","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/2406.05357/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":"2026-07-05T08:41:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"177GkoVRr7MfUvy0+DMcjnpLtGCXxp/KLcyEMNVcYZuGhYTI7c0IONwJoa33WGJKtGEjJCniXnTR9N0NVbqmAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T23:25:49.425314Z"},"content_sha256":"017ab416000e98b77ce8d8ed3eff011568bb98680b9d0739f6155ef7b501c056","schema_version":"1.0","event_id":"sha256:017ab416000e98b77ce8d8ed3eff011568bb98680b9d0739f6155ef7b501c056"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/K5QSK6IUIRT2UIRCA5IYVZUII4/bundle.json","state_url":"https://pith.science/pith/K5QSK6IUIRT2UIRCA5IYVZUII4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/K5QSK6IUIRT2UIRCA5IYVZUII4/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":"2026-08-13T23:25:49Z","links":{"resolver":"https://pith.science/pith/K5QSK6IUIRT2UIRCA5IYVZUII4","bundle":"https://pith.science/pith/K5QSK6IUIRT2UIRCA5IYVZUII4/bundle.json","state":"https://pith.science/pith/K5QSK6IUIRT2UIRCA5IYVZUII4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/K5QSK6IUIRT2UIRCA5IYVZUII4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:K5QSK6IUIRT2UIRCA5IYVZUII4","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":"c7dc60c92524e8c416ecb82748dacb8870bf076ed9cc4b92374b0dd7fa6e9ae3","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-06-08T05:16:30Z","title_canon_sha256":"ea1e99e6813aa7f66cc30d21996419391a00170a331fbaeafac9f34b5da7007d"},"schema_version":"1.0","source":{"id":"2406.05357","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2406.05357","created_at":"2026-07-05T08:41:45Z"},{"alias_kind":"arxiv_version","alias_value":"2406.05357v1","created_at":"2026-07-05T08:41:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2406.05357","created_at":"2026-07-05T08:41:45Z"},{"alias_kind":"pith_short_12","alias_value":"K5QSK6IUIRT2","created_at":"2026-07-05T08:41:45Z"},{"alias_kind":"pith_short_16","alias_value":"K5QSK6IUIRT2UIRC","created_at":"2026-07-05T08:41:45Z"},{"alias_kind":"pith_short_8","alias_value":"K5QSK6IU","created_at":"2026-07-05T08:41:45Z"}],"graph_snapshots":[{"event_id":"sha256:017ab416000e98b77ce8d8ed3eff011568bb98680b9d0739f6155ef7b501c056","target":"graph","created_at":"2026-07-05T08:41:45Z","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/2406.05357/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Gamma-ray bursts (GRBs) are typically classified into long and short GRBs based on their durations. However, there is a significant overlapping in the duration distributions of these two categories. In this paper, we apply the unsupervised dimensionality reduction algorithm called t-SNE and UMAP to classify 2061 Fermi GRBs based on four observed quantities: duration, peak energy, fluence, and peak flux. The map results of t-SNE and UMAP show a clear division of these GRBs into two clusters. We mark the two clusters as GRBs-I and GRBs-II, and find that all GRBs associated with supernovae are cl","authors_text":"Da-Ling Ma, Fu-Wen Zhang, Si-Yuan Zhu, Wan-Peng Sun","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-06-08T05:16:30Z","title":"Classification of Fermi Gamma-Ray Bursts Based on Machine Learning"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2406.05357","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:d653cffe6157dbf7fb0f690da18a41cae47ee306fea273c806f1af512dec082a","target":"record","created_at":"2026-07-05T08:41:45Z","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":"c7dc60c92524e8c416ecb82748dacb8870bf076ed9cc4b92374b0dd7fa6e9ae3","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-06-08T05:16:30Z","title_canon_sha256":"ea1e99e6813aa7f66cc30d21996419391a00170a331fbaeafac9f34b5da7007d"},"schema_version":"1.0","source":{"id":"2406.05357","kind":"arxiv","version":1}},"canonical_sha256":"57612579144467aa222207518ae688473ea36c83819262b51998b1da0de771d5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"57612579144467aa222207518ae688473ea36c83819262b51998b1da0de771d5","first_computed_at":"2026-07-05T08:41:45.588966Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:41:45.588966Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YV4pAJof9ebGsoDyVsd7dAJ9DmZLi4aZZTTtp6x1ieffJXR+6yhiXW4XFv/1vJE5rH5NN81KG/s8apq/7cJjBA==","signature_status":"signed_v1","signed_at":"2026-07-05T08:41:45.589420Z","signed_message":"canonical_sha256_bytes"},"source_id":"2406.05357","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d653cffe6157dbf7fb0f690da18a41cae47ee306fea273c806f1af512dec082a","sha256:017ab416000e98b77ce8d8ed3eff011568bb98680b9d0739f6155ef7b501c056"],"state_sha256":"28e6e133c1b3b029bdd73440a9dc2ba9f69a9122dd3080d0f388a800a30fc508"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"62nrsE0y1TpaMXaRn+6gQRL9rynD3ZFkmb610C58PSg/cqPYc2hWM6RxK+O0jvD+8f+Nb1xadTDRSqjyTl8wAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T23:25:49.492385Z","bundle_sha256":"9329d431c495b5df9dc4491c47c310819a110cf8a49cbafa408983fd2bcc6417"}}