{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:7J2XAFDN5E6V5Y53WPZLWFSXBN","short_pith_number":"pith:7J2XAFDN","canonical_record":{"source":{"id":"1504.05840","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2015-04-22T14:58:47Z","cross_cats_sorted":[],"title_canon_sha256":"64be077c8479e340ac80bfd50a28ea3a61438c360365a6f5729719958b97fa07","abstract_canon_sha256":"8993c23b2e6de84e72e6445c78310101755cd15f833be8ea36ee2cb80be984b3"},"schema_version":"1.0"},"canonical_sha256":"fa7570146de93d5ee3bbb3f2bb16570b5bb9d3e84bccdccb6fe05aeacde0457f","source":{"kind":"arxiv","id":"1504.05840","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.05840","created_at":"2026-05-18T02:17:00Z"},{"alias_kind":"arxiv_version","alias_value":"1504.05840v2","created_at":"2026-05-18T02:17:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.05840","created_at":"2026-05-18T02:17:00Z"},{"alias_kind":"pith_short_12","alias_value":"7J2XAFDN5E6V","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"7J2XAFDN5E6V5Y53","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"7J2XAFDN","created_at":"2026-05-18T12:29:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:7J2XAFDN5E6V5Y53WPZLWFSXBN","target":"record","payload":{"canonical_record":{"source":{"id":"1504.05840","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2015-04-22T14:58:47Z","cross_cats_sorted":[],"title_canon_sha256":"64be077c8479e340ac80bfd50a28ea3a61438c360365a6f5729719958b97fa07","abstract_canon_sha256":"8993c23b2e6de84e72e6445c78310101755cd15f833be8ea36ee2cb80be984b3"},"schema_version":"1.0"},"canonical_sha256":"fa7570146de93d5ee3bbb3f2bb16570b5bb9d3e84bccdccb6fe05aeacde0457f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:17:00.131363Z","signature_b64":"o1iY8G1F59lop9RT0ZWBwl7kgjraa7VEpiTzaUMhgLdkUY3EOSis/Ax5Ho8Ga1QEEDzptou8tTUwt3e0f/HxAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fa7570146de93d5ee3bbb3f2bb16570b5bb9d3e84bccdccb6fe05aeacde0457f","last_reissued_at":"2026-05-18T02:17:00.130719Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:17:00.130719Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1504.05840","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":"2026-05-18T02:17:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pR5HV/FOYFvgK4a2uAjc4I8vE+HeG/9EQixBXIJ7Vf/CcXoKLpL39gcCUJM37MHUagn/5qrT0OV5skI2M3gOBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T14:45:19.130000Z"},"content_sha256":"8a414b1da63ef09200adcb51d56f2906102587f09e24780f12e48ac6bb3a0452","schema_version":"1.0","event_id":"sha256:8a414b1da63ef09200adcb51d56f2906102587f09e24780f12e48ac6bb3a0452"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:7J2XAFDN5E6V5Y53WPZLWFSXBN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Dynamics of Triads in Aggregated Journal-Journal Citation Relations: Specialty Developments at the Above-Journal Level","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.DL","authors_text":"Loet Leydesdorff, Wouter De Nooy","submitted_at":"2015-04-22T14:58:47Z","abstract_excerpt":"Dyads of journals related by citations can agglomerate into specialties through the mechanism of triadic closure. Using the Journal Citation Reports 2011, 2012, and 2013, we analyze triad formation as indicators of integration (specialty growth) and disintegration (restructuring). The strongest integration is found among the large journals that report on studies in different scientific specialties, such as PLoS ONE, Nature Communications, Nature, and Science. This tendency towards large-scale integration has not yet stabilized. Using the Islands algorithm, we also distinguish 51 local maxima o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.05840","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":"2026-05-18T02:17:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KH7FdNbofgvSOoluqgceRQAP3qgeQO2ljjbxxw5HVlXXxO9tLHCCYVP2tDpZJPlT9AAMcStM+eWknUQXNAaCDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T14:45:19.131088Z"},"content_sha256":"b794b1461dd66e8bff0560629fe5d8c9018798b8240c69402d7bb499ae38ecaf","schema_version":"1.0","event_id":"sha256:b794b1461dd66e8bff0560629fe5d8c9018798b8240c69402d7bb499ae38ecaf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7J2XAFDN5E6V5Y53WPZLWFSXBN/bundle.json","state_url":"https://pith.science/pith/7J2XAFDN5E6V5Y53WPZLWFSXBN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7J2XAFDN5E6V5Y53WPZLWFSXBN/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":"2026-05-25T14:45:19Z","links":{"resolver":"https://pith.science/pith/7J2XAFDN5E6V5Y53WPZLWFSXBN","bundle":"https://pith.science/pith/7J2XAFDN5E6V5Y53WPZLWFSXBN/bundle.json","state":"https://pith.science/pith/7J2XAFDN5E6V5Y53WPZLWFSXBN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7J2XAFDN5E6V5Y53WPZLWFSXBN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:7J2XAFDN5E6V5Y53WPZLWFSXBN","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":"8993c23b2e6de84e72e6445c78310101755cd15f833be8ea36ee2cb80be984b3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2015-04-22T14:58:47Z","title_canon_sha256":"64be077c8479e340ac80bfd50a28ea3a61438c360365a6f5729719958b97fa07"},"schema_version":"1.0","source":{"id":"1504.05840","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.05840","created_at":"2026-05-18T02:17:00Z"},{"alias_kind":"arxiv_version","alias_value":"1504.05840v2","created_at":"2026-05-18T02:17:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.05840","created_at":"2026-05-18T02:17:00Z"},{"alias_kind":"pith_short_12","alias_value":"7J2XAFDN5E6V","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"7J2XAFDN5E6V5Y53","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"7J2XAFDN","created_at":"2026-05-18T12:29:10Z"}],"graph_snapshots":[{"event_id":"sha256:b794b1461dd66e8bff0560629fe5d8c9018798b8240c69402d7bb499ae38ecaf","target":"graph","created_at":"2026-05-18T02:17:00Z","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":"Dyads of journals related by citations can agglomerate into specialties through the mechanism of triadic closure. Using the Journal Citation Reports 2011, 2012, and 2013, we analyze triad formation as indicators of integration (specialty growth) and disintegration (restructuring). The strongest integration is found among the large journals that report on studies in different scientific specialties, such as PLoS ONE, Nature Communications, Nature, and Science. This tendency towards large-scale integration has not yet stabilized. Using the Islands algorithm, we also distinguish 51 local maxima o","authors_text":"Loet Leydesdorff, Wouter De Nooy","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2015-04-22T14:58:47Z","title":"The Dynamics of Triads in Aggregated Journal-Journal Citation Relations: Specialty Developments at the Above-Journal Level"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.05840","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":"sha256:8a414b1da63ef09200adcb51d56f2906102587f09e24780f12e48ac6bb3a0452","target":"record","created_at":"2026-05-18T02:17:00Z","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":"8993c23b2e6de84e72e6445c78310101755cd15f833be8ea36ee2cb80be984b3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2015-04-22T14:58:47Z","title_canon_sha256":"64be077c8479e340ac80bfd50a28ea3a61438c360365a6f5729719958b97fa07"},"schema_version":"1.0","source":{"id":"1504.05840","kind":"arxiv","version":2}},"canonical_sha256":"fa7570146de93d5ee3bbb3f2bb16570b5bb9d3e84bccdccb6fe05aeacde0457f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fa7570146de93d5ee3bbb3f2bb16570b5bb9d3e84bccdccb6fe05aeacde0457f","first_computed_at":"2026-05-18T02:17:00.130719Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:17:00.130719Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"o1iY8G1F59lop9RT0ZWBwl7kgjraa7VEpiTzaUMhgLdkUY3EOSis/Ax5Ho8Ga1QEEDzptou8tTUwt3e0f/HxAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:17:00.131363Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.05840","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8a414b1da63ef09200adcb51d56f2906102587f09e24780f12e48ac6bb3a0452","sha256:b794b1461dd66e8bff0560629fe5d8c9018798b8240c69402d7bb499ae38ecaf"],"state_sha256":"86bfd9fa2da12a7dd0b983c27d6ed5161dacb5d3c9de2f6b91873a5d1970ea8c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ThG85Iv48Qyiu1L8aGUdd0ceU2GdgmkL64yc22jsR3oV6XmcB+T2xOISg6DFvbdSMdawWJhu+EWmnPTaVO6sBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T14:45:19.134811Z","bundle_sha256":"065f20e642e6efc616e012bd5d2a8cf7b7e91850a28c4f29ae6c702144270091"}}