{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:5ML6XCPH6Y3P5MS7F3RABM7GWL","short_pith_number":"pith:5ML6XCPH","canonical_record":{"source":{"id":"2507.07499","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CL","submitted_at":"2025-07-10T07:35:12Z","cross_cats_sorted":["physics.data-an"],"title_canon_sha256":"ec86c6f3d8882dfb468281f9b285d66648f225d141f7e2fa111b26b3ee3f5b68","abstract_canon_sha256":"c8c4918a665c652257182ecf31a416e995d47da965a9c7662550589f52cf1735"},"schema_version":"1.0"},"canonical_sha256":"eb17eb89e7f636feb25f2ee200b3e6b2f983570a1a9a316817487c1501d3c619","source":{"kind":"arxiv","id":"2507.07499","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.07499","created_at":"2026-07-05T11:34:59Z"},{"alias_kind":"arxiv_version","alias_value":"2507.07499v1","created_at":"2026-07-05T11:34:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.07499","created_at":"2026-07-05T11:34:59Z"},{"alias_kind":"pith_short_12","alias_value":"5ML6XCPH6Y3P","created_at":"2026-07-05T11:34:59Z"},{"alias_kind":"pith_short_16","alias_value":"5ML6XCPH6Y3P5MS7","created_at":"2026-07-05T11:34:59Z"},{"alias_kind":"pith_short_8","alias_value":"5ML6XCPH","created_at":"2026-07-05T11:34:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:5ML6XCPH6Y3P5MS7F3RABM7GWL","target":"record","payload":{"canonical_record":{"source":{"id":"2507.07499","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CL","submitted_at":"2025-07-10T07:35:12Z","cross_cats_sorted":["physics.data-an"],"title_canon_sha256":"ec86c6f3d8882dfb468281f9b285d66648f225d141f7e2fa111b26b3ee3f5b68","abstract_canon_sha256":"c8c4918a665c652257182ecf31a416e995d47da965a9c7662550589f52cf1735"},"schema_version":"1.0"},"canonical_sha256":"eb17eb89e7f636feb25f2ee200b3e6b2f983570a1a9a316817487c1501d3c619","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:34:59.395683Z","signature_b64":"ohvT8WfLdPF5d+qwkIK7YOovMkjDUOLtx/vcWQcYpiCKwsWLQkeFTvHg8t24vaSOfqoKQtQJWexxQNvPbCMLDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"eb17eb89e7f636feb25f2ee200b3e6b2f983570a1a9a316817487c1501d3c619","last_reissued_at":"2026-07-05T11:34:59.395204Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:34:59.395204Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2507.07499","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":"2026-07-05T11:34:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Nm73W/8PT4dhV5P8EEG/LxY3C+62eeV1yajGSvLWYDKMa8SGW6H1+dBoTUumIBJ0RGDH1l/NWqGF3urbhj+8CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T15:36:27.597657Z"},"content_sha256":"61ba21de3d65a2caf8e8bc41a1e6df826a6a37e38c0015c920a5122bb90e11d3","schema_version":"1.0","event_id":"sha256:61ba21de3d65a2caf8e8bc41a1e6df826a6a37e38c0015c920a5122bb90e11d3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:5ML6XCPH6Y3P5MS7F3RABM7GWL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Extracting ORR Catalyst Information for Fuel Cell from Scientific Literature","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["physics.data-an"],"primary_cat":"cs.CL","authors_text":"Amgad Ahmed Ali Ibrahim, Hein Htet, Ryoji Asahi, Yutaka Sasaki","submitted_at":"2025-07-10T07:35:12Z","abstract_excerpt":"The oxygen reduction reaction (ORR) catalyst plays a critical role in enhancing fuel cell efficiency, making it a key focus in material science research. However, extracting structured information about ORR catalysts from vast scientific literature remains a significant challenge due to the complexity and diversity of textual data. In this study, we propose a named entity recognition (NER) and relation extraction (RE) approach using DyGIE++ with multiple pre-trained BERT variants, including MatSciBERT and PubMedBERT, to extract ORR catalyst-related information from the scientific literature, w"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.07499","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/2507.07499/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":"2026-07-05T11:34:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vcxpsLut6TxxRpH7PWJXj+LeENMy9VyGtyHTZQU6QMnQY8ngBCxu7dLKR2wcU7F5G+Smc5rzk0iVmiKjotQMAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T15:36:27.598299Z"},"content_sha256":"c2aab8182fe670814402bfcf0e3c00f8e8f7101e647df5b4e4f4e2a3a62d3e5f","schema_version":"1.0","event_id":"sha256:c2aab8182fe670814402bfcf0e3c00f8e8f7101e647df5b4e4f4e2a3a62d3e5f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5ML6XCPH6Y3P5MS7F3RABM7GWL/bundle.json","state_url":"https://pith.science/pith/5ML6XCPH6Y3P5MS7F3RABM7GWL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5ML6XCPH6Y3P5MS7F3RABM7GWL/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":"2026-08-03T15:36:27Z","links":{"resolver":"https://pith.science/pith/5ML6XCPH6Y3P5MS7F3RABM7GWL","bundle":"https://pith.science/pith/5ML6XCPH6Y3P5MS7F3RABM7GWL/bundle.json","state":"https://pith.science/pith/5ML6XCPH6Y3P5MS7F3RABM7GWL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5ML6XCPH6Y3P5MS7F3RABM7GWL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:5ML6XCPH6Y3P5MS7F3RABM7GWL","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":"c8c4918a665c652257182ecf31a416e995d47da965a9c7662550589f52cf1735","cross_cats_sorted":["physics.data-an"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CL","submitted_at":"2025-07-10T07:35:12Z","title_canon_sha256":"ec86c6f3d8882dfb468281f9b285d66648f225d141f7e2fa111b26b3ee3f5b68"},"schema_version":"1.0","source":{"id":"2507.07499","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.07499","created_at":"2026-07-05T11:34:59Z"},{"alias_kind":"arxiv_version","alias_value":"2507.07499v1","created_at":"2026-07-05T11:34:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.07499","created_at":"2026-07-05T11:34:59Z"},{"alias_kind":"pith_short_12","alias_value":"5ML6XCPH6Y3P","created_at":"2026-07-05T11:34:59Z"},{"alias_kind":"pith_short_16","alias_value":"5ML6XCPH6Y3P5MS7","created_at":"2026-07-05T11:34:59Z"},{"alias_kind":"pith_short_8","alias_value":"5ML6XCPH","created_at":"2026-07-05T11:34:59Z"}],"graph_snapshots":[{"event_id":"sha256:c2aab8182fe670814402bfcf0e3c00f8e8f7101e647df5b4e4f4e2a3a62d3e5f","target":"graph","created_at":"2026-07-05T11:34:59Z","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/2507.07499/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The oxygen reduction reaction (ORR) catalyst plays a critical role in enhancing fuel cell efficiency, making it a key focus in material science research. However, extracting structured information about ORR catalysts from vast scientific literature remains a significant challenge due to the complexity and diversity of textual data. In this study, we propose a named entity recognition (NER) and relation extraction (RE) approach using DyGIE++ with multiple pre-trained BERT variants, including MatSciBERT and PubMedBERT, to extract ORR catalyst-related information from the scientific literature, w","authors_text":"Amgad Ahmed Ali Ibrahim, Hein Htet, Ryoji Asahi, Yutaka Sasaki","cross_cats":["physics.data-an"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CL","submitted_at":"2025-07-10T07:35:12Z","title":"Extracting ORR Catalyst Information for Fuel Cell from Scientific Literature"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.07499","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":"sha256:61ba21de3d65a2caf8e8bc41a1e6df826a6a37e38c0015c920a5122bb90e11d3","target":"record","created_at":"2026-07-05T11:34:59Z","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":"c8c4918a665c652257182ecf31a416e995d47da965a9c7662550589f52cf1735","cross_cats_sorted":["physics.data-an"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CL","submitted_at":"2025-07-10T07:35:12Z","title_canon_sha256":"ec86c6f3d8882dfb468281f9b285d66648f225d141f7e2fa111b26b3ee3f5b68"},"schema_version":"1.0","source":{"id":"2507.07499","kind":"arxiv","version":1}},"canonical_sha256":"eb17eb89e7f636feb25f2ee200b3e6b2f983570a1a9a316817487c1501d3c619","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"eb17eb89e7f636feb25f2ee200b3e6b2f983570a1a9a316817487c1501d3c619","first_computed_at":"2026-07-05T11:34:59.395204Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:34:59.395204Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ohvT8WfLdPF5d+qwkIK7YOovMkjDUOLtx/vcWQcYpiCKwsWLQkeFTvHg8t24vaSOfqoKQtQJWexxQNvPbCMLDA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:34:59.395683Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.07499","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:61ba21de3d65a2caf8e8bc41a1e6df826a6a37e38c0015c920a5122bb90e11d3","sha256:c2aab8182fe670814402bfcf0e3c00f8e8f7101e647df5b4e4f4e2a3a62d3e5f"],"state_sha256":"a7d6b461122ee3fbf7f61234daa818b1b979f328e768f683b33448e8d13b161c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gwAtRSa2Wk+G5+WNs31vuyxTokfLs/z7vP3XquGFfUk/d976i1DnA+ld6zzVM7tKgUSrLONTQBkcxwW2ZrUmCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T15:36:27.604645Z","bundle_sha256":"abf587fc0852f6b5695fa3fd5a99ebd93d3bf5ccbce307466c689ff2ee193b9a"}}